Cape Ann's Marina, MA
05/18/2026 10:00 PM
60°F
TEMPERATURE
Winds 6 mph S
Partly Cloudy
Partly cloudy, with a low around 59. South wind around 8 mph.

Alerts

You have (1) alert(s). Tap to see details.

Heat Advisory

Moderate
Heat Advisory issued May 18 at 12:57PM EDT until May 20 at 8:00PM EDT by NWS Boston/Norton MA
NWS Boston/Norton MA
Category Certainty Severity
Met Likely Moderate
Status Urgency Category
Actual Expected Met
Effective Ends Expires
05/18/2026 12:57 PM 05/20/2026 08:00 PM 05/19/2026 07:00 AM 
* WHAT...Heat index values up to 96 expected.

* WHERE...Much of Southern New England, except for the eastern
slopes of the Berkshires, the Rhode Island and Massachusetts South
Coast, Cape Cod and the Islands.

* WHEN...From 11 AM Tuesday to 8 PM EDT Wednesday.

* IMPACTS...Hot temperatures, a moderate degree of humidity with
little relief Tuesday night may cause heat illnesses.

* ADDITIONAL DETAILS...This is the first multi-day period of hot
temperatures. Those not yet accustomed to hot temperatures with a
moderate degree of humidity should take appropriate heat-related
precautions.
Moonrise
07:17 AM
Moonset
11:53 PM
Sunrise
05:16 AM
Moon Phase
Waxing crescent
Sunset
08:01 PM

Hourly Forecast

Mon, 10:00 PM

Partly Cloudy
Winds: 6 mph S
60°

Mon, 11:00 PM

Partly Cloudy
Winds: 8 mph SW
61°

Tue, 12:00 AM

Partly Cloudy
Winds: 6 mph SW
61°

Tue, 01:00 AM

Mostly Clear
Winds: 6 mph SE
61°

Tue, 02:00 AM

Mostly Clear
Winds: 6 mph SW
62°

Tue, 03:00 AM

Mostly Clear
Winds: 7 mph SW
62°

Tue, 04:00 AM

Mostly Clear
Winds: 7 mph SW
60°

Tue, 05:00 AM

Mostly Clear
Winds: 7 mph SW
62°

Tue, 06:00 AM

Mostly Sunny
Winds: 7 mph SW
62°

Tue, 07:00 AM

Mostly Sunny
Winds: 6 mph SW
64°

Tue, 08:00 AM

Mostly Sunny
Winds: 6 mph SW
69°

Tue, 09:00 AM

Sunny
Winds: 7 mph SW
73°

Tue, 10:00 AM

Sunny
Winds: 7 mph SW
77°

Tue, 11:00 AM

Sunny
Winds: 7 mph SW
80°

Tue, 12:00 PM

Mostly Sunny
Winds: 8 mph SW
82°

Tue, 01:00 PM

Mostly Sunny
Winds: 9 mph SW
82°

Tue, 02:00 PM

Sunny
Winds: 9 mph S
84°

Tue, 03:00 PM

Mostly Sunny
Winds: 9 mph SW
84°

Tue, 04:00 PM

Mostly Sunny
Winds: 9 mph SW
84°

Tue, 05:00 PM

Mostly Sunny
Winds: 9 mph SW
86°

Tue, 06:00 PM

Slight Chance Showers And Thunderstorms
Winds: 9 mph SW
83°

Tue, 07:00 PM

Mostly Cloudy
Winds: 9 mph SW
81°

Tue, 08:00 PM

Mostly Cloudy
Winds: 9 mph SW
78°

Tue, 09:00 PM

Partly Cloudy
Winds: 9 mph SW
73°

Tonight

Partly Cloudy
59°
Winds: 8 mph S
Partly cloudy, with a low around 59. South wind around 8 mph.

Tuesday

Mostly Sunny
86°
Winds: 6 to 9 mph SW
Mostly sunny, with a high near 86. Southwest wind 6 to 9 mph.

Tuesday Night

Slight Chance Showers And Thunderstorms then Partly Cloudy
67°
Winds: 9 mph SW
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 67. Southwest wind around 9 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

Wednesday

Mostly Sunny then Showers And Thunderstorms Likely
84°
Winds: 10 mph W
A chance of rain showers between noon and 2pm, then showers and thunderstorms likely. Mostly sunny, with a high near 84. West wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.

Wednesday Night

Chance Rain Showers then Mostly Cloudy
51°
Winds: 9 mph NW
A chance of rain showers before 8pm. Mostly cloudy, with a low around 51. Northwest wind around 9 mph. Chance of precipitation is 30%.

Thursday

Mostly Sunny
65°
Winds: 5 to 8 mph NE
Mostly sunny, with a high near 65. Northeast wind 5 to 8 mph.

Thursday Night

Mostly Clear
48°
Winds: 6 mph W
Mostly clear, with a low around 48. West wind around 6 mph.

Friday

Mostly Sunny
65°
Winds: 3 to 7 mph E
Mostly sunny, with a high near 65. East wind 3 to 7 mph.

Friday Night

Mostly Cloudy then Chance Rain Showers
49°
Winds: 2 to 7 mph SW
A chance of rain showers after 2am. Mostly cloudy, with a low around 49. Southwest wind 2 to 7 mph. Chance of precipitation is 30%.

Saturday

Chance Rain Showers
62°
Winds: 2 to 7 mph E
A chance of rain showers. Mostly cloudy, with a high near 62. East wind 2 to 7 mph. Chance of precipitation is 50%.

Saturday Night

Rain Showers Likely
48°
Winds: 6 mph E
Rain showers likely. Mostly cloudy, with a low around 48. East wind around 6 mph. Chance of precipitation is 60%.

Sunday

Rain Showers Likely
62°
Winds: 7 mph E
Rain showers likely. Mostly cloudy, with a high near 62. East wind around 7 mph. Chance of precipitation is 60%.

Sunday Night

Chance Rain Showers
49°
Winds: 6 mph E
A chance of rain showers. Mostly cloudy, with a low around 49. East wind around 6 mph. Chance of precipitation is 30%.

Memorial Day

Chance Rain Showers
64°
Winds: 6 mph E
A chance of rain showers. Mostly cloudy, with a high near 64. East wind around 6 mph.

Coastal Waters Forecast for Massachusetts and Rhode Island

National Weather Service Boston/Norton MA

for Massachusetts and Rhode Island coastal waters. Gusty SW winds will develop Tue. A strong cold front will cross the waters late Wed and Wed evening. Strong high pres builds over the Gt Lakes Thu and moves into the waters Fri. The high moves offshore by Sat as a frontal boundary approaches from the S.

Coastal waters from the Merrimack River MA to Watch Hill RI out to 60 NM

Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary

TONIGHT
S winds 10 to 15 kt with gusts up to 20 kt Seas 2 to 3 ft Wave Detail: E 2 ft at 4 seconds and SE 2 ft at 8 seconds Patchy fog Vsby 1 NM or less
TUE
SW winds 10 to 15 kt with gusts up to 20 kt, becoming S 15 to 20 kt with gusts up to 30 kt in the afternoon Seas 2 to 4 ft Wave Detail: SW 4 ft at 4 seconds and SE 2 ft at 9 seconds Patchy fog in the morning with vsby 1 to 3 NM
TUE NIGHT
SW winds 15 to 20 kt with gusts up to 30 kt Seas 3 to 5 ft Wave Detail: SW 4 ft at 5 seconds and SE 3 ft at 9 seconds Patchy fog after midnight
WED
SW winds 10 to 15 kt with gusts up to 20 kt Seas 2 to 4 ft Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 9 seconds A chance of showers in the afternoon
WED NIGHT
W winds 10 to 15 kt, becoming NW after midnight Gusts up to 20 kt Seas 2 to 4 ft Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 9 seconds A chance of showers in the evening
THU AND THU NIGHT
NW winds 10 to 15 kt with gusts up to 20 kt Seas 2 to 3 ft Wave Detail: SW 3 ft at 4 seconds and N 3 ft at 5 seconds
FRI
NE winds 5 to 10 kt Seas around 2 ft
FRI NIGHT THROUGH SAT NIGHT
E winds 5 to 10 kt Seas 2 to 3 ft A chance of showers
Reporting time 07:05 PM EDT Mon May 18 2026

Massachusetts Bay and Ipswich Bay

TONIGHT
S winds 10 to 15 kt, becoming SW after midnight Seas around 2 ft Wave Detail: SE 2 ft at 4 seconds and W 1 foot at 2 seconds Patchy fog after midnight
TUE
SW winds 10 to 15 kt Gusts up to 25 kt in the afternoon Seas 2 to 3 ft Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 4 seconds
TUE NIGHT
SW winds 15 to 20 kt with gusts up to 25 kt Seas 2 to 3 ft Wave Detail: SW 3 ft at 4 seconds and E 1 foot at 9 seconds
WED
SW winds 10 to 15 kt with gusts up to 20 kt Seas 2 to 3 ft Wave Detail: SW 2 ft at 3 seconds and SE 1 foot at 9 seconds Showers likely in the afternoon
WED NIGHT
NW winds 10 to 15 kt with gusts up to 20 kt Seas around 2 ft Wave Detail: NW 2 ft at 3 seconds and S 1 foot at 4 seconds A chance of showers in the evening
THU AND THU NIGHT
NW winds 10 to 15 kt with gusts up to 20 kt Seas around 2 ft Wave Detail: W 2 ft at 3 seconds and NE 1 foot at 4 seconds
FRI
E winds 5 to 10 kt Seas 1 foot or less
FRI NIGHT AND SAT
SW winds 5 to 10 kt, becoming E Seas around 2 ft, then 1 foot or less A chance of showers
SAT NIGHT
E winds 5 to 10 kt Seas around 2 ft Showers likely
Reporting time 07:05 PM EDT Mon May 18 2026

Cape Cod Bay

TONIGHT
SW winds 10 to 15 kt Gusts up to 20 kt after midnight Seas around 2 ft Wave Detail: S 1 foot at 2 seconds and NE 1 foot at 3 seconds Patchy fog Vsby 1 NM or less, increasing to 1 to 3 NM after midnight
TUE
SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon Gusts up to 25 kt Seas around 2 ft, building to 3 to 4 ft in the afternoon Wave Detail: SW 1 foot at 3 seconds and E 1 foot at 4 seconds, becoming SW 2 ft at 3 seconds and E 1 foot at 4 seconds Patchy fog in the morning with vsby 1 to 3 NM
TUE NIGHT
SW winds 15 to 20 kt with gusts up to 25 kt Seas 2 to 4 ft Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 9 seconds Patchy fog after midnight
WED
SW winds 10 to 15 kt with gusts up to 25 kt Seas 2 to 4 ft Wave Detail: SW 2 ft at 3 seconds and SE 1 foot at 10 seconds Showers likely in the afternoon
WED NIGHT
W winds 10 to 15 kt, becoming NW after midnight Gusts up to 20 kt Seas 2 to 3 ft Wave Detail: SW 2 ft at 3 seconds and N 2 ft at 3 seconds A chance of showers in the evening
THU AND THU NIGHT
NW winds 10 to 15 kt with gusts up to 20 kt Seas around 2 ft Wave Detail: N 2 ft at 5 seconds and S 1 foot at 6 seconds
FRI
E winds 5 to 10 kt Seas 1 foot or less
FRI NIGHT
SW winds 5 to 10 kt Seas 1 foot or less A chance of showers
SAT AND SAT NIGHT
E winds 5 to 10 kt Seas 1 foot or less, then around 2 ft Showers likely
Reporting time 07:05 PM EDT Mon May 18 2026

Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 NM

SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH WEDNESDAY EVENING
Reporting time 07:05 PM EDT Mon May 18 2026

Coastal Waters extending out to 25 NM South of Marthas Vineyard
and Nantucket

SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH WEDNESDAY EVENING
Reporting time 07:05 PM EDT Mon May 18 2026

Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 NM South of Block Island

SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH WEDNESDAY EVENING
Reporting time 07:05 PM EDT Mon May 18 2026

Nantucket Sound

TONIGHT
SW winds 10 to 15 kt Gusts up to 20 kt after midnight Seas 2 to 3 ft Wave Detail: SW 2 ft at 4 seconds and E 1 foot at 3 seconds Patchy fog Vsby 1 NM or less
TUE
SW winds 15 to 20 kt with gusts up to 25 kt Seas 2 to 4 ft Wave Detail: SW 3 ft at 4 seconds and E 1 foot at 3 seconds Patchy fog Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon
TUE NIGHT
SW winds 15 to 20 kt with gusts up to 25 kt Seas 3 to 4 ft Wave Detail: SW 4 ft at 5 seconds and SE 1 foot at 9 seconds Patchy fog Vsby 1 NM or less
WED
SW winds 15 to 20 kt with gusts up to 25 kt Seas 3 to 4 ft Wave Detail: SW 3 ft at 5 seconds and SE 1 foot at 9 seconds Patchy fog in the morning A chance of showers in the afternoon Vsby 1 to 3 NM in the morning
WED NIGHT
W winds 15 to 20 kt, becoming NW 10 to 15 kt after midnight Gusts up to 25 kt Seas 2 to 4 ft Wave Detail: SW 3 ft at 5 seconds and N 2 ft at 2 seconds A chance of showers
THU AND THU NIGHT
NW winds 10 to 15 kt with gusts up to 20 kt Seas 2 to 3 ft Wave Detail: N 2 ft at 4 seconds and SW 1 foot at 6 seconds
FRI
E winds 5 to 10 kt Seas around 2 ft
FRI NIGHT
S winds 5 to 10 kt Seas 1 foot or less A chance of showers
SAT AND SAT NIGHT
E winds 5 to 10 kt, increasing to 10 to 15 kt Seas around 2 ft Showers likely
Reporting time 07:05 PM EDT Mon May 18 2026

Vineyard Sound

TONIGHT
SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight Seas 2 to 3 ft Wave Detail: W 3 ft at 5 seconds and E 1 foot at 3 seconds Patchy fog Vsby 1 NM or less
TUE
SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon Gusts up to 25 kt Seas 2 to 4 ft Wave Detail: W 4 ft at 5 seconds and E 1 foot at 3 seconds Patchy fog in the morning with vsby 1 NM or less
TUE NIGHT
SW winds 15 to 20 kt with gusts up to 25 kt Seas 3 to 5 ft Wave Detail: SW 5 ft at 5 seconds and E 1 foot at 8 seconds Patchy fog Vsby 1 NM or less
WED
SW winds 15 to 20 kt with gusts up to 25 kt Seas 3 to 5 ft Wave Detail: SW 5 ft at 7 seconds and E 1 foot at 8 seconds Patchy fog in the morning A chance of showers in the afternoon Vsby 1 to 3 NM in the morning
WED NIGHT
W winds 10 to 15 kt with gusts up to 20 kt, becoming NW after midnight Seas 2 to 4 ft Wave Detail: SW 4 ft at 7 seconds and NW 2 ft at 3 seconds A chance of showers
THU AND THU NIGHT
NW winds 10 to 15 kt Seas 2 to 3 ft Wave Detail: N 3 ft at 4 seconds and SW 3 ft at 7 seconds
FRI
E winds 5 to 10 kt Seas around 2 ft
FRI NIGHT
S winds 5 to 10 kt Seas around 2 ft A chance of showers
SAT AND SAT NIGHT
E winds 10 to 15 kt Seas around 2 ft Showers likely
Reporting time 07:05 PM EDT Mon May 18 2026

Buzzards Bay

TONIGHT
S winds 5 to 10 kt, becoming SW 10 to 15 kt after midnight Seas around 2 ft Wave Detail: W 2 ft at 3 seconds and S 2 ft at 7 seconds Patchy fog Vsby 1 NM or less
TUE
SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon Gusts up to 25 kt Seas 2 to 4 ft Wave Detail: SW 3 ft at 5 seconds and W 1 foot at 2 seconds Patchy fog in the morning with vsby 1 NM or less
TUE NIGHT
SW winds 15 to 20 kt with gusts up to 25 kt Seas 3 to 4 ft Wave Detail: S 3 ft at 6 seconds and SE 1 foot at 15 seconds Patchy fog Vsby 1 NM or less
WED
SW winds 15 to 20 kt with gusts up to 25 kt Seas 2 to 4 ft Wave Detail: SW 4 ft at 5 seconds and S 2 ft at 8 seconds Patchy fog in the morning Showers likely in the afternoon Vsby 1 to 3 NM in the morning
WED NIGHT
W winds 10 to 15 kt with gusts up to 20 kt, becoming NW after midnight Seas 2 to 3 ft Wave Detail: S 3 ft at 7 seconds and N 2 ft at 2 seconds A chance of showers in the evening
THU AND THU NIGHT
NW winds 5 to 10 kt Seas around 2 ft Wave Detail: N 2 ft at 3 seconds and SW 2 ft at 6 seconds
FRI
E winds 5 to 10 kt Seas 1 foot or less
FRI NIGHT
S winds 5 to 10 kt Seas 1 foot or less A chance of showers
SAT AND SAT NIGHT
E winds 5 to 10 kt, increasing to 10 to 15 kt Seas around 2 ft Showers likely
Reporting time 07:05 PM EDT Mon May 18 2026

Rhode Island Sound

TONIGHT
S winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt after midnight Seas 2 to 3 ft Wave Detail: S 3 ft at 7 seconds and SE 2 ft at 8 seconds Patchy fog Vsby 1 NM or less
TUE
SW winds 15 to 20 kt with gusts up to 25 kt Seas 3 to 5 ft Wave Detail: SW 5 ft at 6 seconds and E 1 foot at 3 seconds Patchy fog Vsby 1 NM or less in the morning
TUE NIGHT
SW winds 15 to 20 kt with gusts up to 25 kt Seas 4 to 6 ft Wave Detail: SE 6 ft at 7 seconds and W 3 ft at 4 seconds Patchy fog Vsby 1 NM or less
WED
SW winds 15 to 20 kt with gusts up to 25 kt Seas 3 to 5 ft Wave Detail: SW 5 ft at 7 seconds and SE 3 ft at 7 seconds Patchy fog in the morning A chance of showers in the afternoon Vsby 1 to 3 NM in the morning
WED NIGHT
W winds 15 to 20 kt, becoming NW 10 to 15 kt after midnight Seas 3 to 5 ft Wave Detail: S 5 ft at 7 seconds and N 2 ft at 2 seconds A chance of showers in the evening
THU AND THU NIGHT
NW winds 10 to 15 kt Seas 2 to 3 ft Wave Detail: S 3 ft at 7 seconds and N 2 ft at 4 seconds
FRI
E winds 5 to 10 kt Seas around 2 ft
FRI NIGHT
S winds 5 to 10 kt Seas around 2 ft A chance of showers
SAT AND SAT NIGHT
E winds 10 to 15 kt Gusts up to 20 kt Seas 2 to 4 ft Showers likely
Reporting time 07:05 PM EDT Mon May 18 2026

Block Island Sound

TONIGHT
SW winds 5 to 10 kt Seas 2 to 3 ft Wave Detail: SW 2 ft at 5 seconds and SE 2 ft at 8 seconds Patchy fog Vsby 1 NM or less
TUE
SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon Gusts up to 25 kt Seas 2 to 4 ft Wave Detail: S 4 ft at 6 seconds and E 1 foot at 2 seconds Patchy fog in the morning with vsby 1 NM or less
TUE NIGHT
SW winds 15 to 20 kt with gusts up to 25 kt Seas 3 to 5 ft Wave Detail: SW 5 ft at 7 seconds and W 2 ft at 4 seconds Patchy fog Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight
WED
SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon Gusts up to 25 kt Seas 3 to 5 ft Wave Detail: SW 4 ft at 7 seconds and W 2 ft at 4 seconds Showers likely in the afternoon
WED NIGHT
W winds 10 to 15 kt with gusts up to 20 kt, becoming NW after midnight Seas 2 to 4 ft Wave Detail: S 4 ft at 7 seconds and W 2 ft at 4 seconds A chance of showers in the evening
THU AND THU NIGHT
N winds 5 to 10 kt Seas 2 to 3 ft Wave Detail: S 3 ft at 7 seconds and SE 2 ft at 9 seconds
FRI
E winds 5 to 10 kt Seas around 2 ft
FRI NIGHT
SE winds 5 to 10 kt Seas around 2 ft A chance of showers
SAT AND SAT NIGHT
E winds 10 to 15 kt Gusts up to 20 kt Seas 2 to 4 ft Showers likely
Reporting time 07:05 PM EDT Mon May 18 2026

Boston Harbor

TONIGHT
S winds 10 to 15 kt, becoming SW 5 to 10 kt after midnight Waves around 2 ft this evening, then 1 foot or less
TUE
SW winds 10 to 15 kt Gusts up to 20 kt in the afternoon Waves 1 foot or less, then around 2 ft in the afternoon
TUE NIGHT
SW winds 10 to 15 kt with gusts up to 20 kt Waves around 2 ft
WED
W winds 10 to 15 kt with gusts up to 20 kt Waves around 2 ft Showers likely in the afternoon
WED NIGHT
NW winds 10 to 15 kt Gusts up to 20 kt in the evening Waves around 2 ft A chance of showers in the evening
THU AND THU NIGHT
NW winds 10 to 15 kt Waves around 2 ft
FRI
E winds 5 to 10 kt Waves 1 foot or less
FRI NIGHT AND SAT
SW winds 5 to 10 kt, becoming E Waves 1 foot or less A chance of showers
SAT NIGHT
E winds 5 to 10 kt Waves 1 foot or less Showers likely
Reporting time 07:05 PM EDT Mon May 18 2026

Narragansett Bay

TONIGHT
S winds 5 to 10 kt Waves around 2 ft Patchy fog Vsby 1 NM or less
TUE
SW winds 10 to 15 kt with gusts up to 20 kt Waves 2 to 3 ft Patchy fog in the morning with vsby 1 NM or less
TUE NIGHT
SW winds 10 to 15 kt with gusts up to 20 kt Waves 2 to 3 ft Patchy fog after midnight
WED
SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon Gusts up to 25 kt Waves 2 to 3 ft Showers likely in the afternoon
WED NIGHT
NW winds 10 to 15 kt Gusts up to 20 kt in the evening Waves 2 to 3 ft A chance of showers in the evening
THU AND THU NIGHT
NW winds 10 to 15 kt Waves around 2 ft
FRI
E winds 5 to 10 kt Waves around 2 ft
FRI NIGHT
S winds 5 to 10 kt Waves around 2 ft A chance of showers
SAT AND SAT NIGHT
E winds 5 to 10 kt Waves 2 to 3 ft Showers likely
Reporting time 07:05 PM EDT Mon May 18 2026

Ocean Waters from the Merrimack River to Plymouth from 40 to
60 NM

TONIGHT
S winds 10 to 15 kt with gusts up to 20 kt Seas 3 to 4 ft Wave Detail: SE 3 ft at 4 seconds and SE 3 ft at 8 seconds Patchy fog Vsby 1 NM or less
TUE
SW winds 15 to 20 kt Gusts up to 20 kt, increasing to 30 kt in the afternoon Seas 3 to 5 ft Wave Detail: SW 5 ft at 5 seconds and SE 2 ft at 9 seconds Patchy fog in the morning with vsby 1 to 3 NM
TUE NIGHT
SW winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight Gusts up to 30 kt Seas 4 to 6 ft Wave Detail: S 6 ft at 7 seconds Patchy fog after midnight with vsby 1 to 3 NM
WED
SW winds 15 to 20 kt with gusts up to 25 kt Seas 4 to 6 ft Wave Detail: SW 5 ft at 7 seconds A chance of showers in the afternoon
WED NIGHT
W winds around 15 kt, becoming NW after midnight Gusts up to 25 kt Seas 3 to 5 ft Wave Detail: S 4 ft at 7 seconds and W 3 ft at 4 seconds A chance of showers in the evening
THU AND THU NIGHT
NW winds 10 to 15 kt with gusts up to 25 kt Seas 2 to 4 ft Wave Detail: N 3 ft at 5 seconds and SW 2 ft at 7 seconds
FRI AND FRI NIGHT
NW winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt Seas around 2 ft
SAT AND SAT NIGHT
E winds 5 to 10 kt Seas 2 to 3 ft A chance of showers
Reporting time 07:05 PM EDT Mon May 18 2026

Ocean Waters from Provincetown to Nantucket from 20 to 60 NM

TONIGHT
SW winds 10 to 15 kt with gusts up to 20 kt Seas 3 to 4 ft Wave Detail: S 3 ft at 7 seconds and SE 3 ft at 8 seconds Patchy fog Vsby 1 NM or less
TUE
SW winds 15 to 20 kt with gusts up to 30 kt Seas 4 to 6 ft Wave Detail: W 6 ft at 5 seconds and SE 2 ft at 9 seconds Patchy fog Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon
TUE NIGHT
SW winds 20 to 25 kt with gusts up to 30 kt Seas around 6 ft Wave Detail: SW 6 ft at 6 seconds and SE 1 foot at 9 seconds Patchy fog Vsby 1 NM or less
WED
SW winds around 20 kt with gusts up to 25 kt Seas 5 to 6 ft Wave Detail: W 6 ft at 6 seconds and SE 1 foot at 9 seconds Patchy fog A chance of showers in the afternoon Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon
WED NIGHT
SW winds 15 to 20 kt, becoming NW after midnight Gusts up to 25 kt Seas 4 to 6 ft Wave Detail: W 6 ft at 6 seconds and N 1 foot at 4 seconds A chance of showers in the evening, then showers likely after midnight
THU
N winds 10 to 15 kt with gusts up to 20 kt Seas 3 to 4 ft Wave Detail: SW 4 ft at 7 seconds and N 3 ft at 5 seconds A chance of showers in the morning
THU NIGHT
S winds around 5 kt, becoming NW around 5 kt after midnight Seas 2 to 4 ft
FRI
NE winds around 5 kt Seas 2 to 3 ft
FRI NIGHT AND SAT
S winds 5 to 10 kt, becoming E Seas 2 to 3 ft A chance of showers
SAT NIGHT
E winds 10 to 15 kt with gusts up to 20 kt Seas 3 to 5 ft Showers likely
Reporting time 07:05 PM EDT Mon May 18 2026

Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM

TONIGHT
SW winds 10 to 15 kt Gusts up to 20 kt after midnight Seas 3 to 4 ft Wave Detail: W 4 ft at 4 seconds and SE 2 ft at 9 seconds Patchy fog Vsby 1 NM or less
TUE
SW winds 15 to 20 kt with gusts up to 25 kt Seas 4 to 6 ft Wave Detail: W 5 ft at 6 seconds and SE 2 ft at 9 seconds Patchy fog Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon
TUE NIGHT
SW winds 20 to 25 kt with gusts up to 30 kt Seas 6 to 7 ft Wave Detail: SW 7 ft at 7 seconds and SE 2 ft at 9 seconds Patchy fog Vsby 1 NM or less
WED
SW winds around 20 kt with gusts up to 25 kt Seas around 6 ft Wave Detail: W 6 ft at 6 seconds and SE 2 ft at 9 seconds Patchy fog Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon
WED NIGHT
SW winds 15 to 20 kt, becoming NW 10 to 15 kt after midnight Gusts up to 25 kt Seas 4 to 6 ft Wave Detail: W 6 ft at 6 seconds and N 2 ft at 2 seconds A chance of showers in the evening, then showers likely after midnight
THU
NE winds 10 to 15 kt with gusts up to 20 kt Seas 3 to 4 ft Wave Detail: SW 4 ft at 7 seconds and N 2 ft at 4 seconds Showers likely in the morning
THU NIGHT
E winds 5 to 10 kt, becoming NE after midnight Seas 2 to 3 ft
FRI
NE winds 5 to 10 kt Seas 2 to 3 ft
FRI NIGHT
SE winds around 5 kt Seas around 2 ft A chance of showers
SAT AND SAT NIGHT
E winds 10 to 15 kt with gusts up to 20 kt Seas 3 to 5 ft Showers likely
Reporting time 07:05 PM EDT Mon May 18 2026

Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM

TONIGHT
SW winds 10 to 15 kt with gusts up to 20 kt Seas 3 to 4 ft Wave Detail: W 4 ft at 5 seconds and SE 2 ft at 9 seconds Patchy fog this evening, then patchy dense fog after midnight Vsby 1 NM or less
TUE
SW winds 15 to 20 kt with gusts up to 25 kt Seas 4 to 6 ft Wave Detail: W 5 ft at 6 seconds and SE 2 ft at 9 seconds Patchy fog Vsby 1 NM or less in the morning
TUE NIGHT
SW winds 20 to 25 kt with gusts up to 30 kt Seas 5 to 7 ft Wave Detail: W 7 ft at 6 seconds and SE 2 ft at 10 seconds Patchy fog Vsby 1 NM or less
WED
SW winds around 20 kt with gusts up to 30 kt Seas 5 to 6 ft Wave Detail: W 6 ft at 7 seconds and SE 2 ft at 9 seconds Patchy fog Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon
WED NIGHT
W winds 15 to 20 kt with gusts up to 25 kt, becoming NW 10 to 15 kt after midnight Seas 4 to 6 ft Wave Detail: SW 6 ft at 7 seconds and N 2 ft at 3 seconds A chance of showers in the evening, then showers likely after midnight
THU
N winds 10 to 15 kt, becoming NE 5 to 10 kt in the afternoon Gusts up to 20 kt Seas 3 to 4 ft Wave Detail: SW 4 ft at 6 seconds and N 2 ft at 4 seconds Showers likely in the morning
THU NIGHT
SE winds 5 to 10 kt, becoming E after midnight Seas 2 to 3 ft
FRI
E winds 5 to 10 kt Seas around 2 ft
FRI NIGHT
SE winds 5 to 10 kt Seas around 2 ft A chance of showers
SAT
E winds 10 to 15 kt with gusts up to 20 kt Seas 3 to 5 ft Showers likely
SAT NIGHT
E winds 15 to 20 kt Seas 4 to 6 ft Showers likely
Reporting time 07:05 PM EDT Mon May 18 2026

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