Cape Ann's Marina, MA
06/18/2026 08:00 PM
72°F
TEMPERATURE
Winds 14 mph SW
Chance Rain Showers
A chance of rain showers before 9pm. Mostly clear, with a low around 65. Southwest wind 8 to 14 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Moonrise
09:58 AM
Moonset
12:30 AM
Sunrise
05:04 AM
Moon Phase
Waxing crescent
Sunset
08:23 PM

Hourly Forecast

Thu, 08:00 PM

Chance Rain Showers
Winds: 14 mph SW
72°

Thu, 09:00 PM

Partly Cloudy
Winds: 14 mph SW
68°

Thu, 10:00 PM

Mostly Clear
Winds: 13 mph SW
69°

Thu, 11:00 PM

Partly Cloudy
Winds: 12 mph W
68°

Fri, 12:00 AM

Mostly Clear
Winds: 12 mph W
68°

Fri, 01:00 AM

Partly Cloudy
Winds: 13 mph W
68°

Fri, 02:00 AM

Mostly Clear
Winds: 8 mph W
68°

Fri, 03:00 AM

Mostly Clear
Winds: 8 mph W
67°

Fri, 04:00 AM

Mostly Clear
Winds: 9 mph W
66°

Fri, 05:00 AM

Mostly Clear
Winds: 9 mph W
66°

Fri, 06:00 AM

Sunny
Winds: 9 mph W
67°

Fri, 07:00 AM

Mostly Sunny
Winds: 9 mph W
67°

Fri, 08:00 AM

Sunny
Winds: 9 mph W
71°

Fri, 09:00 AM

Sunny
Winds: 10 mph W
74°

Fri, 10:00 AM

Sunny
Winds: 10 mph W
79°

Fri, 11:00 AM

Sunny
Winds: 10 mph W
81°

Fri, 12:00 PM

Sunny
Winds: 12 mph W
84°

Fri, 01:00 PM

Sunny
Winds: 12 mph W
85°

Fri, 02:00 PM

Sunny
Winds: 12 mph W
85°

Fri, 03:00 PM

Sunny
Winds: 12 mph W
86°

Fri, 04:00 PM

Sunny
Winds: 10 mph W
85°

Fri, 05:00 PM

Sunny
Winds: 10 mph W
85°

Fri, 06:00 PM

Mostly Clear
Winds: 10 mph W
83°

Fri, 07:00 PM

Mostly Clear
Winds: 9 mph W
80°

Tonight

Chance Rain Showers then Mostly Clear
65°
Winds: 8 to 14 mph SW
A chance of rain showers before 9pm. Mostly clear, with a low around 65. Southwest wind 8 to 14 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

Juneteenth

Sunny
86°
Winds: 12 mph W
Sunny, with a high near 86. West wind around 12 mph, with gusts as high as 22 mph.

Friday Night

Mostly Clear
64°
Winds: 10 mph W
Mostly clear, with a low around 64. West wind around 10 mph, with gusts as high as 21 mph.

Saturday

Sunny
85°
Winds: 12 mph W
Sunny, with a high near 85. West wind around 12 mph.

Saturday Night

Mostly Clear
62°
Winds: 5 to 8 mph NW
Mostly clear, with a low around 62. Northwest wind 5 to 8 mph.

Sunday

Mostly Sunny then Chance Rain Showers
81°
Winds: 6 mph NE
A chance of rain showers after 2pm. Mostly sunny, with a high near 81. Northeast wind around 6 mph. Chance of precipitation is 30%.

Sunday Night

Chance Rain Showers then Partly Cloudy
62°
Winds: 3 mph SW
A chance of rain showers before 9pm. Partly cloudy, with a low around 62. Southwest wind around 3 mph. Chance of precipitation is 30%.

Monday

Rain Showers Likely
78°
Winds: 1 to 8 mph S
Rain showers likely after 8am. Partly sunny, with a high near 78. South wind 1 to 8 mph. Chance of precipitation is 60%.

Monday Night

Showers And Thunderstorms Likely
63°
Winds: 10 mph S
Rain showers likely before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 63. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.

Tuesday

Rain Showers Likely
82°
Winds: 6 to 9 mph W
Rain showers likely. Partly sunny, with a high near 82. West wind 6 to 9 mph. Chance of precipitation is 60%.

Tuesday Night

Slight Chance Rain Showers then Partly Cloudy
64°
Winds: 5 mph SW
A slight chance of rain showers before 8pm. Partly cloudy, with a low around 64. Southwest wind around 5 mph.

Wednesday

Mostly Sunny
82°
Winds: 6 mph SW
Mostly sunny, with a high near 82. Southwest wind around 6 mph.

Wednesday Night

Partly Cloudy
64°
Winds: 2 to 6 mph SW
Partly cloudy, with a low around 64. Southwest wind 2 to 6 mph.

Thursday

Mostly Sunny then Slight Chance Showers And Thunderstorms
82°
Winds: 2 to 8 mph S
A slight chance of showers and thunderstorms between 2pm and 5pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 82. South wind 2 to 8 mph.

Coastal Waters Forecast for Massachusetts and Rhode Island

National Weather Service Boston/Norton MA

for Massachusetts and Rhode Island coastal waters. Gale and Small Craft conditions with a chance of thunderstorms into the evening which could lead to locally higher winds and seas. Breezy conditions and elevated seas continue Fri and Sat across the srn coastal waters. Another coastal system approaches from the W on Monday.

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

GALE WARNING IN EFFECT UNTIL 10 PM EDT THIS EVENING
Reporting time 07:05 PM EDT Thu Jun 18 2026

Massachusetts Bay and Ipswich Bay

TONIGHT
SW winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight Seas 3 to 5 ft, subsiding to 2 to 3 ft after midnight Wave Detail: S 5 ft at 5 seconds and E 3 ft at 7 seconds, becoming SE 3 ft at 7 seconds and SW 2 ft at 4 seconds Showers likely with isolated tstms this evening
FRI
W winds 10 to 15 kt with gusts up to 20 kt Seas 2 to 3 ft Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 7 seconds
FRI NIGHT
W winds 10 to 15 kt with gusts up to 20 kt Seas 2 to 3 ft Wave Detail: W 2 ft at 4 seconds and E 1 foot at 7 seconds
SAT
W winds 10 to 15 kt with gusts up to 20 kt Seas 2 to 3 ft Wave Detail: W 3 ft at 4 seconds and SE 1 foot at 6 seconds
SAT NIGHT
NW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight Seas around 2 ft Wave Detail: W 2 ft at 3 seconds and E 1 foot at 6 seconds
SUN
NW winds 5 to 10 kt, becoming E in the afternoon Seas 1 foot or less Wave Detail: SW 1 foot at 3 seconds and N 1 foot at 4 seconds A chance of showers in the afternoon
SUN NIGHT
S winds around 5 kt Seas 1 foot or less
MON
S winds 10 to 15 kt with gusts up to 20 kt Seas 2 to 3 ft Showers likely
MON NIGHT
S winds 15 to 20 kt with gusts up to 25 kt Seas 2 to 3 ft Showers likely
TUE
W winds 10 to 15 kt with gusts up to 20 kt Seas 2 to 3 ft Showers likely
TUE NIGHT
SW winds 5 to 10 kt Seas 2 to 3 ft
Reporting time 07:05 PM EDT Thu Jun 18 2026

Cape Cod Bay

GALE WARNING IN EFFECT UNTIL 10 PM EDT THIS EVENING
Reporting time 07:05 PM EDT Thu Jun 18 2026

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

SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING
Reporting time 07:05 PM EDT Thu Jun 18 2026

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

SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING
Reporting time 07:05 PM EDT Thu Jun 18 2026

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

SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING
Reporting time 07:05 PM EDT Thu Jun 18 2026

Nantucket Sound

GALE WARNING IN EFFECT UNTIL 10 PM EDT THIS EVENING
Reporting time 07:05 PM EDT Thu Jun 18 2026

Vineyard Sound

GALE WARNING IN EFFECT UNTIL 10 PM EDT THIS EVENING
Reporting time 07:05 PM EDT Thu Jun 18 2026

Buzzards Bay

GALE WARNING IN EFFECT UNTIL 10 PM EDT THIS EVENING
Reporting time 07:05 PM EDT Thu Jun 18 2026

Rhode Island Sound

SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING
Reporting time 07:05 PM EDT Thu Jun 18 2026

Block Island Sound

SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING
Reporting time 07:05 PM EDT Thu Jun 18 2026

Boston Harbor

TONIGHT
SW winds 15 to 20 kt with gusts up to 30 kt, becoming W 10 to 15 kt with gusts up to 20 kt after midnight Waves around 2 ft Showers likely with isolated tstms this evening
FRI
W winds around 15 kt with gusts up to 25 kt Waves around 2 ft
FRI NIGHT
W winds around 15 kt with gusts up to 25 kt Waves around 2 ft
SAT
W winds 15 to 20 kt with gusts up to 25 kt Waves around 2 ft
SAT NIGHT
W winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight Waves around 2 ft in the evening, then 1 foot or less
SUN AND SUN NIGHT
SW winds 5 to 10 kt Waves 1 foot or less A chance of showers through the night
MON
S winds 10 to 15 kt with gusts up to 20 kt Waves around 2 ft Showers likely
MON NIGHT
S winds 15 to 20 kt Waves 2 to 3 ft Showers likely
TUE
W winds 10 to 15 kt with gusts up to 20 kt Waves around 2 ft Showers likely
TUE NIGHT
SW winds 5 to 10 kt Waves 1 foot or less
Reporting time 07:05 PM EDT Thu Jun 18 2026

Narragansett Bay

TONIGHT
SW winds 15 to 20 kt with gusts up to 30 kt, becoming W around 10 kt with gusts up to 20 kt after midnight Waves 2 to 4 ft A slight chance of showers with isolated tstms this evening
FRI
W winds 10 to 15 kt with gusts up to 25 kt Waves 2 to 3 ft
FRI NIGHT
W winds 10 to 15 kt Gusts up to 20 kt in the evening Waves 2 to 3 ft
SAT
W winds around 15 kt with gusts up to 20 kt Waves 2 to 3 ft
SAT NIGHT
W winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight Waves 2 to 3 ft
SUN AND SUN NIGHT
SW winds 5 to 10 kt Waves around 2 ft A chance of showers through the night
MON
S winds 10 to 15 kt with gusts up to 20 kt Waves 2 to 4 ft Showers likely
MON NIGHT
S winds 15 to 20 kt with gusts up to 25 kt Waves 2 to 4 ft Showers
TUE
W winds 10 to 15 kt with gusts up to 20 kt Waves 2 to 4 ft Showers likely
TUE NIGHT
W winds 5 to 10 kt Waves 2 to 3 ft
Reporting time 07:05 PM EDT Thu Jun 18 2026

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

GALE WARNING IN EFFECT UNTIL 10 PM EDT THIS EVENING
Reporting time 07:05 PM EDT Thu Jun 18 2026

Ocean Waters from Provincetown to Nantucket from 20 to 60 NM

TONIGHT
S winds 20 to 25 kt, becoming SW 15 to 20 kt after midnight Gusts up to 35 kt Seas 6 to 8 ft Wave Detail: SW 7 ft at 6 seconds and E 1 foot at 7 seconds A chance of showers with isolated tstms this evening
FRI
SW winds 15 to 20 kt with gusts up to 25 kt Seas 5 to 6 ft Wave Detail: S 6 ft at 8 seconds and W 4 ft at 5 seconds
FRI NIGHT
W winds 15 to 20 kt with gusts up to 25 kt Seas 5 to 6 ft Wave Detail: SW 6 ft at 8 seconds and W 3 ft at 5 seconds
SAT
W winds 15 to 20 kt with gusts up to 25 kt Seas 5 to 7 ft Wave Detail: SW 5 ft at 7 seconds and SE 1 foot at 13 seconds
SAT NIGHT
W winds 15 to 20 kt with gusts up to 25 kt, diminishing to 10 to 15 kt after midnight Seas 5 to 7 ft Wave Detail: SW 6 ft at 8 seconds and W 2 ft at 5 seconds
SUN
W winds 5 to 10 kt Seas 3 to 5 ft Wave Detail: S 4 ft at 8 seconds and N 2 ft at 4 seconds
SUN NIGHT
SW winds around 5 kt Seas 2 to 3 ft
MON
S winds 10 to 15 kt Seas 4 to 6 ft A chance of showers
MON NIGHT
S winds 20 to 25 kt with gusts up to 30 kt Seas 5 to 8 ft Showers
TUE
SW winds 20 to 25 kt with gusts up to 30 kt Seas 5 to 8 ft Showers likely
TUE NIGHT
W winds 10 to 15 kt with gusts up to 20 kt Seas 4 to 6 ft A chance of showers
Reporting time 07:05 PM EDT Thu Jun 18 2026

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

TONIGHT
SW winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight Gusts up to 30 kt Seas 6 to 8 ft Wave Detail: W 8 ft at 7 seconds and E 1 foot at 7 seconds
FRI
SW winds 15 to 20 kt with gusts up to 25 kt Seas 6 to 7 ft Wave Detail: SW 7 ft at 8 seconds and W 4 ft at 5 seconds
FRI NIGHT
W winds 15 to 20 kt with gusts up to 25 kt Seas 5 to 7 ft Wave Detail: SW 7 ft at 8 seconds and W 3 ft at 5 seconds
SAT
W winds 15 to 20 kt with gusts up to 25 kt Seas 5 to 7 ft Wave Detail: SW 6 ft at 7 seconds and SE 1 foot at 13 seconds
SAT NIGHT
W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight Gusts up to 25 kt Seas 6 to 7 ft, subsiding to 4 to 6 ft after midnight Wave Detail: SW 6 ft at 8 seconds and W 4 ft at 6 seconds, becoming SW 5 ft at 8 seconds and W 3 ft at 6 seconds
SUN AND SUN NIGHT
SW winds 5 to 10 kt Seas 2 to 4 ft Wave Detail: SW 4 ft at 8 seconds and W 2 ft at 5 seconds
MON
S winds 15 to 20 kt with gusts up to 25 kt Seas 5 to 7 ft A chance of showers
MON NIGHT
S winds 20 to 25 kt with gusts up to 30 kt Seas 7 to 10 ft Showers
TUE
SW winds 20 to 25 kt with gusts up to 30 kt Seas 5 to 7 ft Showers likely
TUE NIGHT
W winds 10 to 15 kt with gusts up to 20 kt Seas 4 to 6 ft
Reporting time 07:05 PM EDT Thu Jun 18 2026

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

TONIGHT
SW winds 20 to 25 kt, becoming W 15 to 20 kt after midnight Gusts up to 35 kt Seas 8 to 9 ft, subsiding to 6 to 8 ft after midnight Wave Detail: S 9 ft at 7 seconds and W 6 ft at 9 seconds, becoming SW 8 ft at 8 seconds and S 2 ft at 4 seconds
FRI
W winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon Gusts up to 25 kt Seas 5 to 7 ft Wave Detail: SW 6 ft at 7 seconds and E 1 foot at 7 seconds
FRI NIGHT
W winds 15 to 20 kt with gusts up to 25 kt Seas 5 to 7 ft Wave Detail: S 7 ft at 6 seconds and SW 6 ft at 9 seconds
SAT
W winds 15 to 20 kt with gusts up to 25 kt Seas 5 to 7 ft Wave Detail: SW 6 ft at 7 seconds
SAT NIGHT
W winds 15 to 20 kt with gusts up to 25 kt, diminishing to 10 to 15 kt after midnight Seas 5 to 7 ft, subsiding to 4 to 5 ft after midnight Wave Detail: SW 6 ft at 7 seconds, becoming S 4 ft at 7 seconds and NW 3 ft at 5 seconds
SUN AND SUN NIGHT
SW winds 10 to 15 kt Seas 2 to 4 ft Wave Detail: S 4 ft at 7 seconds and NW 2 ft at 4 seconds
MON
S winds 15 to 20 kt with gusts up to 30 kt Seas 5 to 7 ft A chance of showers
MON NIGHT
S winds 20 to 25 kt with gusts up to 30 kt Seas 7 to 10 ft Showers
TUE
SW winds 15 to 20 kt with gusts up to 30 kt Seas 5 to 7 ft Showers likely
TUE NIGHT
W winds 10 to 15 kt with gusts up to 20 kt Seas 4 to 6 ft
Reporting time 07:05 PM EDT Thu Jun 18 2026

For the latest updatesplease visit our webpage at
wwwweathergov/boston

Reporting time
Oilrig
NWS
Buoy
Fixed Station
USGS
Ship
Other