Cape Ann's Marina, MA
03/18/2026 05:00 PM
33°F
TEMPERATURE
Winds 3 mph SE
Partly Sunny
Partly sunny, with a high near 36. Southeast wind around 3 mph.
Moonrise
07:30 AM
Moonset
07:41 PM
Sunrise
06:48 AM
Moon Phase
Waning crescent
Sunset
06:52 PM

Hourly Forecast

Wed, 05:00 PM

Partly Sunny
Winds: 3 mph SE
33°

Wed, 06:00 PM

Mostly Cloudy
Winds: 3 mph SE
33°

Wed, 07:00 PM

Mostly Cloudy
Winds: 5 mph SE
32°

Wed, 08:00 PM

Partly Cloudy
Winds: 6 mph SE
31°

Wed, 09:00 PM

Partly Cloudy
Winds: 6 mph S
30°

Wed, 10:00 PM

Partly Cloudy
Winds: 6 mph S
29°

Wed, 11:00 PM

Mostly Clear
Winds: 5 mph S
29°

Thu, 12:00 AM

Partly Cloudy
Winds: 5 mph S
29°

Thu, 01:00 AM

Partly Cloudy
Winds: 5 mph S
29°

Thu, 02:00 AM

Mostly Clear
Winds: 3 mph S
28°

Thu, 03:00 AM

Partly Cloudy
Winds: 3 mph S
28°

Thu, 04:00 AM

Partly Cloudy
Winds: 3 mph S
28°

Thu, 05:00 AM

Mostly Cloudy
Winds: 3 mph S
28°

Thu, 06:00 AM

Partly Sunny
Winds: 3 mph S
28°

Thu, 07:00 AM

Partly Sunny
Winds: 3 mph S
28°

Thu, 08:00 AM

Mostly Cloudy
Winds: 3 mph S
29°

Thu, 09:00 AM

Partly Sunny
Winds: 3 mph S
31°

Thu, 10:00 AM

Partly Sunny
Winds: 5 mph S
33°

Thu, 11:00 AM

Partly Sunny
Winds: 6 mph S
34°

Thu, 12:00 PM

Mostly Sunny
Winds: 6 mph S
36°

Thu, 01:00 PM

Sunny
Winds: 7 mph S
36°

Thu, 02:00 PM

Sunny
Winds: 7 mph S
37°

Thu, 03:00 PM

Mostly Sunny
Winds: 7 mph SE
39°

Thu, 04:00 PM

Mostly Sunny
Winds: 7 mph SE
39°

This Afternoon

Partly Sunny
36°
Winds: 3 mph SE
Partly sunny, with a high near 36. Southeast wind around 3 mph.

Tonight

Partly Cloudy
24°
Winds: 6 mph S
Partly cloudy, with a low around 24. South wind around 6 mph.

Thursday

Mostly Sunny
39°
Winds: 3 to 7 mph S
Mostly sunny, with a high near 39. South wind 3 to 7 mph.

Thursday Night

Mostly Cloudy
30°
Winds: 7 mph S
Mostly cloudy, with a low around 30. South wind around 7 mph.

Friday

Mostly Sunny
47°
Winds: 6 mph SW
Mostly sunny, with a high near 47. Southwest wind around 6 mph.

Friday Night

Light Rain Likely
36°
Winds: 7 mph S
Rain likely after 8pm. Mostly cloudy, with a low around 36. South wind around 7 mph. Chance of precipitation is 60%.

Saturday

Light Rain Likely
48°
Winds: 9 mph S
Rain likely before 3pm. Mostly cloudy, with a high near 48. South wind around 9 mph. Chance of precipitation is 60%.

Saturday Night

Mostly Cloudy then Slight Chance Light Rain
36°
Winds: 7 mph SW
A slight chance of rain after 2am. Mostly cloudy, with a low around 36. Southwest wind around 7 mph.

Sunday

Chance Light Rain
50°
Winds: 7 to 10 mph W
A chance of rain. Mostly cloudy, with a high near 50. West wind 7 to 10 mph. Chance of precipitation is 40%.

Sunday Night

Chance Light Rain then Slight Chance Rain And Snow
30°
Winds: 9 mph NW
A chance of rain before 5am, then a slight chance of rain and snow. Partly cloudy, with a low around 30. Northwest wind around 9 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

Monday

Slight Chance Rain And Snow then Mostly Sunny
39°
Winds: 10 mph N
A slight chance of rain and snow before 9am. Mostly sunny, with a high near 39. North wind around 10 mph, with gusts as high as 22 mph.

Monday Night

Mostly Clear
26°
Winds: 8 mph N
Mostly clear, with a low around 26. North wind around 8 mph.

Tuesday

Mostly Sunny
38°
Winds: 9 mph W
Mostly sunny, with a high near 38. West wind around 9 mph.

Tuesday Night

Mostly Cloudy
27°
Winds: 8 mph SW
Mostly cloudy, with a low around 27. Southwest wind around 8 mph.

Coastal Waters Forecast for Massachusetts and Rhode Island

National Weather Service Boston/Norton MA

for Massachusetts and Rhode Island coastal waters. High pres remains over the waters through Fri. A series of weak low pres systems will move through New England over the weekend, followed by high pres early next week.

Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM

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

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON
Reporting time 04:04 PM EDT Wed Mar 18 2026

Massachusetts Bay and Ipswich Bay

TONIGHT
S winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight Seas 2 to 3 ft Wave Detail: E 3 ft at 10 seconds and NW 2 ft at 4 seconds
THU
S winds 5 to 10 kt, becoming SE 10 to 15 kt in the afternoon Seas 2 to 3 ft Wave Detail: E 3 ft at 10 seconds and SE 2 ft at 3 seconds
THU NIGHT
S winds 10 to 15 kt Seas 2 to 3 ft Wave Detail: SE 2 ft at 3 seconds and E 2 ft at 9 seconds
FRI
SW winds 5 to 10 kt, becoming S in the afternoon Seas 2 to 3 ft Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 9 seconds
FRI NIGHT
S winds 10 to 15 kt with gusts up to 20 kt Seas 2 to 4 ft Wave Detail: S 3 ft at 4 seconds and E 3 ft at 9 seconds A chance of rain in the evening, then rain likely after midnight
SAT
S winds around 15 kt with gusts up to 20 kt Seas 2 to 4 ft Wave Detail: S 3 ft at 4 seconds and E 3 ft at 9 seconds A chance of rain
SAT NIGHT
SW winds 15 to 20 kt Seas 2 to 4 ft
SUN AND SUN NIGHT
SW winds 15 to 20 kt, becoming NW 20 to 25 kt Seas 2 to 4 ft A chance of rain
MON
N winds 20 to 25 kt Seas 3 to 5 ft
MON NIGHT
N winds 20 to 25 kt Seas 4 to 6 ft
Reporting time 04:04 PM EDT Wed Mar 18 2026

Cape Cod Bay

TONIGHT
SE winds around 5 kt Seas 2 to 3 ft Wave Detail: NW 2 ft at 5 seconds and E 2 ft at 8 seconds
THU
SE winds 5 to 10 kt Seas around 2 ft Wave Detail: E 2 ft at 6 seconds and N 1 foot at 4 seconds
THU NIGHT
S winds 5 to 10 kt Seas around 2 ft Wave Detail: SE 2 ft at 9 seconds and SE 1 foot at 2 seconds
FRI
SW winds 5 to 10 kt Seas around 2 ft Wave Detail: SE 2 ft at 8 seconds and SW 1 foot at 2 seconds
FRI NIGHT AND SAT
SW winds 10 to 15 kt with gusts up to 20 kt Seas 2 to 3 ft Wave Detail: S 2 ft at 3 seconds and E 2 ft at 9 seconds A chance of rain
SAT NIGHT
SW winds 10 to 15 kt with gusts up to 20 kt Seas 2 to 3 ft Wave Detail: E 2 ft at 9 seconds and SW 1 foot at 3 seconds
SUN
SW winds 15 to 20 kt Seas 2 to 3 ft A chance of rain
SUN NIGHT
NW winds 20 to 25 kt Seas 2 to 4 ft A chance of rain and snow
MON AND MON NIGHT
N winds 20 to 25 kt, diminishing to 15 to 20 kt Seas 3 to 4 ft
Reporting time 04:04 PM EDT Wed Mar 18 2026

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

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON
Reporting time 04:04 PM EDT Wed Mar 18 2026

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

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON
Reporting time 04:04 PM EDT Wed Mar 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 THURSDAY AFTERNOON
Reporting time 04:04 PM EDT Wed Mar 18 2026

Nantucket Sound

TONIGHT
SE winds around 5 kt Seas 2 to 3 ft Wave Detail: SE 2 ft at 10 seconds and NW 1 foot at 4 seconds
THU
SE winds 5 to 10 kt Seas around 2 ft Wave Detail: SE 2 ft at 9 seconds and NW 1 foot at 3 seconds
THU NIGHT
S winds around 5 kt Seas around 2 ft Wave Detail: SE 1 foot at 3 seconds and SE 1 foot at 9 seconds
FRI
SW winds 5 to 10 kt Seas around 2 ft Wave Detail: SW 1 foot at 2 seconds and SE 1 foot at 9 seconds
FRI NIGHT AND SAT
SW winds 15 to 20 kt Seas 2 to 4 ft Wave Detail: S 3 ft at 4 seconds and E 2 ft at 9 seconds A chance of rain
SAT NIGHT
SW winds 10 to 15 kt Gusts up to 20 kt after midnight Seas 2 to 4 ft Wave Detail: SW 2 ft at 4 seconds and E 1 foot at 9 seconds
SUN
SW winds 10 to 15 kt with gusts up to 20 kt Seas around 2 ft A chance of rain
SUN NIGHT
NW winds 20 to 25 kt Seas 2 to 3 ft A chance of rain and snow
MON
N winds 20 to 25 kt Seas 3 to 4 ft A chance of snow
MON NIGHT
N winds 15 to 20 kt with gusts up to 25 kt Seas 2 to 4 ft
Reporting time 04:04 PM EDT Wed Mar 18 2026

Vineyard Sound

TONIGHT
SE winds around 5 kt Seas 2 to 3 ft Wave Detail: S 2 ft at 9 seconds and SW 1 foot at 4 seconds
THU
SE winds 5 to 10 kt Seas 2 to 3 ft Wave Detail: S 2 ft at 9 seconds
THU NIGHT
S winds 5 to 10 kt Seas around 2 ft Wave Detail: S 2 ft at 8 seconds and S 1 foot at 2 seconds
FRI
SW winds 5 to 10 kt Seas around 2 ft Wave Detail: SE 2 ft at 8 seconds and SW 1 foot at 3 seconds
FRI NIGHT AND SAT
SW winds 15 to 20 kt Seas 2 to 4 ft Wave Detail: S 4 ft at 7 seconds A chance of rain
SAT NIGHT
SW winds 10 to 15 kt, increasing to 15 to 20 kt after midnight Seas 2 to 4 ft Wave Detail: S 3 ft at 7 seconds
SUN
SW winds 15 to 20 kt Seas 2 to 3 ft A chance of rain
SUN NIGHT
NW winds 20 to 25 kt Seas 2 to 3 ft A chance of rain and snow
MON
N winds 20 to 25 kt Seas 2 to 3 ft A chance of snow
MON NIGHT
N winds 15 to 20 kt Seas 2 to 3 ft
Reporting time 04:04 PM EDT Wed Mar 18 2026

Buzzards Bay

TONIGHT
S winds 5 to 10 kt Seas around 2 ft Wave Detail: S 2 ft at 9 seconds and SW 1 foot at 4 seconds
THU
SE winds 5 to 10 kt Seas around 2 ft Wave Detail: S 2 ft at 9 seconds
THU NIGHT
S winds 5 to 10 kt Seas around 2 ft Wave Detail: S 2 ft at 8 seconds and S 1 foot at 2 seconds
FRI
SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon Seas around 2 ft Wave Detail: SW 1 foot at 2 seconds and SE 1 foot at 8 seconds
FRI NIGHT AND SAT
SW winds 15 to 20 kt Seas 2 to 3 ft Wave Detail: SW 3 ft at 5 seconds and SE 1 foot at 8 seconds A chance of rain
SAT NIGHT
SW winds 10 to 15 kt Gusts up to 20 kt after midnight Seas 2 to 3 ft Wave Detail: SW 3 ft at 6 seconds and SE 1 foot at 9 seconds
SUN
SW winds 15 to 20 kt Seas 2 to 3 ft A chance of rain
SUN NIGHT
NW winds 20 to 25 kt Seas 2 to 3 ft A chance of rain and snow
MON AND MON NIGHT
N winds 20 to 25 kt, diminishing to 15 to 20 kt Seas 2 to 3 ft
Reporting time 04:04 PM EDT Wed Mar 18 2026

Rhode Island Sound

SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
Reporting time 04:04 PM EDT Wed Mar 18 2026

Block Island Sound

SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
Reporting time 04:04 PM EDT Wed Mar 18 2026

Boston Harbor

TONIGHT
S winds 5 to 10 kt Waves 1 foot or less
THU
SE winds 5 to 10 kt Waves 1 foot or less
THU NIGHT
S winds around 10 kt Waves 1 foot or less
FRI
SW winds 5 to 10 kt, becoming S in the afternoon Waves 1 foot or less
FRI NIGHT AND SAT
SW winds 10 to 15 kt with gusts up to 20 kt Waves around 2 ft A chance of rain in the evening, then rain likely through the day A chance of rain in the afternoon
SAT NIGHT
SW winds 15 to 20 kt Waves around 2 ft
SUN AND SUN NIGHT
W winds 15 to 20 kt, becoming N 20 to 25 kt Waves around 2 ft A chance of rain
MON AND MON NIGHT
N winds 20 to 25 kt, diminishing to 15 to 20 kt Waves around 2 ft, except 3 to 5 ft at the outer harbor entrance
Reporting time 04:04 PM EDT Wed Mar 18 2026

Narragansett Bay

TONIGHT
S winds 5 to 10 kt, becoming SE after midnight Waves 2 to 3 ft
THU
SE winds around 5 kt, becoming S in the afternoon Waves 2 to 3 ft
THU NIGHT
S winds 5 to 10 kt Waves around 2 ft
FRI
SW winds 5 to 10 kt Waves around 2 ft
FRI NIGHT AND SAT
SW winds 10 to 15 kt with gusts up to 20 kt Waves 2 to 3 ft A chance of rain in the evening, then rain likely through the day
SAT NIGHT
SW winds 10 to 15 kt Waves 2 to 3 ft
SUN
SW winds 10 to 15 kt with gusts up to 20 kt Waves 2 to 3 ft A chance of rain
SUN NIGHT
NW winds 15 to 20 kt Waves 2 to 3 ft A chance of rain and snow
MON AND MON NIGHT
N winds 15 to 20 kt, diminishing to 10 to 15 kt Waves 2 to 3 ft
Reporting time 04:04 PM EDT Wed Mar 18 2026

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