Cape Ann's Marina, MA
07/01/2026 11:00 PM
76°F
TEMPERATURE
Winds 8 mph SW
Partly Cloudy
Isolated showers and thunderstorms between 2am and 5am. Partly cloudy, with a low around 74. Southwest wind around 8 mph. Chance of precipitation is 20%.

Alerts

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Extreme Heat Warning

Severe
Extreme Heat Warning issued July 1 at 2:46PM EDT until July 4 at 8:00PM EDT by NWS Boston/Norton MA
NWS Boston/Norton MA
Category Certainty Severity
Met Likely Severe
Status Urgency Category
Actual Expected Met
Effective Ends Expires
07/01/2026 02:46 PM 07/04/2026 08:00 PM 07/02/2026 05:00 AM 
* WHAT...Dangerously hot conditions with heat index values of 98 to
115 degrees expected. The worst of this heat and humidity will be
Thursday and Friday.

* WHERE...All of southern New England except the Cape and Islands.

* WHEN...Until 8 PM EDT Saturday.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.

* ADDITIONAL DETAILS...This is a prolonged and dangerous heatwave
with little relief at night.
Moonrise
10:51 PM
Moonset
07:17 AM
Sunrise
05:08 AM
Moon Phase
Waning gibbous
Sunset
08:24 PM

Hourly Forecast

Wed, 11:00 PM

Partly Cloudy
Winds: 8 mph SW
76°

Thu, 12:00 AM

Partly Cloudy
Winds: 7 mph SW
76°

Thu, 01:00 AM

Partly Cloudy
Winds: 7 mph SW
75°

Thu, 02:00 AM

Isolated Showers And Thunderstorms
Winds: 7 mph SW
75°

Thu, 03:00 AM

Isolated Showers And Thunderstorms
Winds: 6 mph SW
75°

Thu, 04:00 AM

Isolated Showers And Thunderstorms
Winds: 6 mph SW
75°

Thu, 05:00 AM

Partly Cloudy
Winds: 6 mph SW
75°

Thu, 06:00 AM

Mostly Sunny
Winds: 6 mph SW
75°

Thu, 07:00 AM

Sunny
Winds: 6 mph SW
77°

Thu, 08:00 AM

Sunny
Winds: 5 mph W
79°

Thu, 09:00 AM

Sunny
Winds: 5 mph W
81°

Thu, 10:00 AM

Sunny
Winds: 5 mph SW
83°

Thu, 11:00 AM

Sunny
Winds: 5 mph SW
84°

Thu, 12:00 PM

Sunny
Winds: 6 mph SW
85°

Thu, 01:00 PM

Sunny
Winds: 7 mph SW
85°

Thu, 02:00 PM

Sunny
Winds: 7 mph S
85°

Thu, 03:00 PM

Sunny
Winds: 7 mph SW
85°

Thu, 04:00 PM

Sunny
Winds: 7 mph SW
85°

Thu, 05:00 PM

Sunny
Winds: 7 mph SW
84°

Thu, 06:00 PM

Mostly Clear
Winds: 6 mph W
84°

Thu, 07:00 PM

Clear
Winds: 6 mph W
83°

Thu, 08:00 PM

Mostly Clear
Winds: 5 mph W
82°

Thu, 09:00 PM

Clear
Winds: 5 mph SW
81°

Thu, 10:00 PM

Mostly Clear
Winds: 5 mph W
80°

Tonight

Partly Cloudy then Isolated Showers And Thunderstorms
74°
Winds: 8 mph SW
Isolated showers and thunderstorms between 2am and 5am. Partly cloudy, with a low around 74. Southwest wind around 8 mph. Chance of precipitation is 20%.

Thursday

Sunny
87°
Winds: 7 mph SW
Sunny, with a high near 87. Heat index values as high as 96. Southwest wind around 7 mph.

Thursday Night

Mostly Clear
77°
Winds: 6 mph W
Mostly clear, with a low around 77. West wind around 6 mph.

Friday

Sunny then Slight Chance Rain Showers
102°
Winds: 5 mph W
A slight chance of rain showers after 3pm. Sunny, with a high near 102. Heat index values as high as 111. West wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

Friday Night

Slight Chance Rain Showers then Mostly Clear
75°
Winds: 5 mph W
A slight chance of rain showers before 8pm. Mostly clear, with a low around 75. West wind around 5 mph. Chance of precipitation is 20%.

Independence Day

Sunny then Slight Chance Showers And Thunderstorms
97°
Winds: 5 mph SW
A slight chance of showers and thunderstorms after 4pm. Sunny, with a high near 97. Southwest wind around 5 mph. Chance of precipitation is 20%.

Saturday Night

Slight Chance Showers And Thunderstorms then Partly Cloudy
69°
Winds: 5 mph NW
A slight chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 69. Northwest wind around 5 mph.

Sunday

Mostly Sunny then Slight Chance Rain Showers
84°
Winds: 6 mph NE
A slight chance of rain showers after 2pm. Mostly sunny, with a high near 84. Northeast wind around 6 mph.

Sunday Night

Chance Rain Showers
67°
Winds: 5 mph SE
A chance of rain showers. Mostly cloudy, with a low around 67. Southeast wind around 5 mph. Chance of precipitation is 30%.

Monday

Chance Rain Showers
80°
Winds: 3 to 7 mph E
A chance of rain showers. Partly sunny, with a high near 80. East wind 3 to 7 mph. Chance of precipitation is 30%.

Monday Night

Chance Rain Showers
66°
Winds: 6 mph SE
A chance of rain showers. Mostly cloudy, with a low around 66. Southeast wind around 6 mph. Chance of precipitation is 30%.

Tuesday

Slight Chance Rain Showers then Mostly Sunny
81°
Winds: 3 to 7 mph E
A slight chance of rain showers before 8am. Mostly sunny, with a high near 81. East wind 3 to 7 mph.

Tuesday Night

Partly Cloudy
66°
Winds: 6 mph S
Partly cloudy, with a low around 66. South wind around 6 mph.

Wednesday

Mostly Sunny then Slight Chance Showers And Thunderstorms
82°
Winds: 3 to 8 mph SE
A slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 82. Southeast wind 3 to 8 mph.

Coastal Waters Forecast for Massachusetts and Rhode Island

National Weather Service Boston/Norton MA

for Massachusetts and Rhode Island coastal waters. A Bermuda high will result in persistent SW flow for the remainder of this week along with increasing humidity. Long SW fetch will result in a period of 3 to 6 foot seas across the srn waters Wed into Thu. A cold front will cross the waters sometime later Sat or Sat night.

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

OVERNIGHT
SW winds 10 to 15 kt with gusts up to 25 kt Seas 2 to 4 ft Wave Detail: SW 3 ft at 5 seconds and SE 1 foot at 10 seconds Isolated showers and tstms
THU
SW winds 10 to 15 kt with gusts up to 20 kt Seas 2 to 4 ft Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 10 seconds
THU NIGHT
SW winds 10 to 15 kt with gusts up to 25 kt Seas 2 to 3 ft Wave Detail: SW 2 ft at 5 seconds and SE 1 foot at 10 seconds
FRI
SW winds 5 to 10 kt Seas around 2 ft Wave Detail: W 2 ft at 3 seconds and SE 1 foot at 10 seconds
FRI NIGHT AND SAT
W winds 5 to 10 kt Seas around 2 ft Wave Detail: W 1 foot at 3 seconds and SE 1 foot at 9 seconds
SAT NIGHT
W winds 5 to 10 kt, becoming N after midnight Seas around 2 ft Wave Detail: W 1 foot at 3 seconds and SE 1 foot at 9 seconds
SUN
NE winds around 5 kt Seas around 2 ft
SUN NIGHT THROUGH MON NIGHT
SE winds 5 to 10 kt Seas 2 to 3 ft A chance of showers
Reporting time 10:03 PM EDT Wed Jul 1 2026

Massachusetts Bay and Ipswich Bay

OVERNIGHT
SW winds 10 to 15 kt Gusts up to 20 kt Seas around 2 ft Wave Detail: S 2 ft at 4 seconds and E 1 foot at 10 seconds Isolated showers and tstms
THU
SW winds 5 to 10 kt Seas around 2 ft Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 10 seconds
THU NIGHT
SW winds 5 to 10 kt Seas around 2 ft Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 10 seconds
FRI
W winds 5 to 10 kt Seas around 2 ft in the morning, then 1 foot or less Wave Detail: W 1 foot at 3 seconds and E 1 foot at 10 seconds, becoming W 1 foot at 2 seconds and E 1 foot at 10 seconds
FRI NIGHT AND SAT
NW winds 5 to 10 kt Seas 1 foot or less Wave Detail: W 1 foot at 2 seconds and E 1 foot at 10 seconds
SAT NIGHT
NW winds 5 to 10 kt Seas 1 foot or less Wave Detail: W 1 foot at 2 seconds and E 1 foot at 9 seconds
SUN
NE winds 5 to 10 kt Seas 1 foot or less
SUN NIGHT THROUGH MON NIGHT
SE winds 5 to 10 kt Seas around 2 ft A chance of showers
Reporting time 10:03 PM EDT Wed Jul 1 2026

Cape Cod Bay

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON
Reporting time 10:03 PM EDT Wed Jul 1 2026

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

SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT
Reporting time 10:03 PM EDT Wed Jul 1 2026

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

SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT
Reporting time 10:03 PM EDT Wed Jul 1 2026

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

SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT
Reporting time 10:03 PM EDT Wed Jul 1 2026

Nantucket Sound

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON
Reporting time 10:03 PM EDT Wed Jul 1 2026

Vineyard Sound

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON
Reporting time 10:03 PM EDT Wed Jul 1 2026

Buzzards Bay

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON
Reporting time 10:03 PM EDT Wed Jul 1 2026

Rhode Island Sound

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON
Reporting time 10:03 PM EDT Wed Jul 1 2026

Block Island Sound

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON
Reporting time 10:03 PM EDT Wed Jul 1 2026

Boston Harbor

OVERNIGHT
SW winds 5 to 10 kt Waves around 2 ft, then 1 foot or less Isolated showers and tstms
THU
W winds 5 to 10 kt Waves 1 foot or less
THU NIGHT
W winds 5 to 10 kt Waves 1 foot or less
FRI
W winds 5 to 10 kt Waves 1 foot or less
FRI NIGHT THROUGH SAT NIGHT
N winds 5 to 10 kt Waves 1 foot or less
SUN
NE winds 5 to 10 kt Waves 1 foot or less
SUN NIGHT
SE winds 5 to 10 kt Waves 1 foot or less A chance of showers
MON AND MON NIGHT
E winds 5 to 10 kt Waves 1 foot or less A chance of showers
Reporting time 10:03 PM EDT Wed Jul 1 2026

Narragansett Bay

SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
Reporting time 10:03 PM EDT Wed Jul 1 2026

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

OVERNIGHT
SW winds around 15 kt with gusts up to 25 kt Seas 4 to 5 ft Wave Detail: SW 4 ft at 6 seconds and SE 1 foot at 10 seconds
THU
SW winds 10 to 15 kt with gusts up to 20 kt Seas 3 to 5 ft Wave Detail: SW 4 ft at 6 seconds and SE 1 foot at 10 seconds
THU NIGHT
SW winds 10 to 15 kt with gusts up to 25 kt Seas 3 to 4 ft Wave Detail: S 4 ft at 6 seconds and SE 1 foot at 10 seconds
FRI
W winds around 10 kt Seas 2 to 3 ft Wave Detail: W 3 ft at 6 seconds and SE 1 foot at 10 seconds
FRI NIGHT AND SAT
W winds 5 to 10 kt Seas 2 to 3 ft Wave Detail: W 2 ft at 5 seconds and SE 1 foot at 10 seconds
SAT NIGHT
W winds 5 to 10 kt, becoming N after midnight Seas around 2 ft Wave Detail: W 2 ft at 5 seconds and SE 1 foot at 9 seconds
SUN
NE winds 5 to 10 kt Seas around 2 ft
SUN NIGHT THROUGH MON NIGHT
SE winds 5 to 10 kt Seas 2 to 3 ft A chance of showers
Reporting time 10:03 PM EDT Wed Jul 1 2026

Ocean Waters from Provincetown to Nantucket from 20 to 60 NM

OVERNIGHT
SW winds 15 to 20 kt with gusts up to 30 kt Seas 5 to 6 ft Wave Detail: SW 5 ft at 6 seconds and SE 1 foot at 10 seconds
THU
SW winds 15 to 20 kt with gusts up to 25 kt Seas 5 to 6 ft Wave Detail: SW 5 ft at 6 seconds and SE 1 foot at 10 seconds
THU NIGHT
SW winds 15 to 20 kt with gusts up to 25 kt Seas 4 to 5 ft Wave Detail: SW 5 ft at 6 seconds and SE 1 foot at 10 seconds Patchy fog Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight
FRI
W winds 10 to 15 kt Gusts up to 20 kt in the morning Seas 3 to 5 ft Wave Detail: SW 4 ft at 6 seconds and SE 1 foot at 10 seconds
FRI NIGHT AND SAT
SW winds 10 to 15 kt Seas 2 to 4 ft Wave Detail: SW 3 ft at 6 seconds and SE 1 foot at 10 seconds
SAT NIGHT
W winds 5 to 10 kt, becoming NW after midnight Seas 2 to 3 ft Wave Detail: SW 2 ft at 6 seconds and SE 1 foot at 9 seconds
SUN
N winds around 5 kt Seas 2 to 3 ft
SUN NIGHT THROUGH MON NIGHT
E winds 5 to 10 kt Seas 2 to 3 ft A chance of showers
Reporting time 10:03 PM EDT Wed Jul 1 2026

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

OVERNIGHT
SW winds around 15 kt with gusts up to 25 kt Seas 5 to 6 ft Wave Detail: SW 5 ft at 6 seconds and SE 1 foot at 10 seconds
THU
SW winds 15 to 20 kt with gusts up to 25 kt Seas 5 to 6 ft Wave Detail: SW 6 ft at 7 seconds and SE 1 foot at 10 seconds
THU NIGHT
SW winds 15 to 20 kt with gusts up to 25 kt Seas 4 to 6 ft Wave Detail: SW 6 ft at 6 seconds and SE 1 foot at 10 seconds
FRI
SW winds 10 to 15 kt with gusts up to 20 kt Seas 3 to 5 ft Wave Detail: SW 5 ft at 6 seconds and SE 1 foot at 10 seconds
FRI NIGHT
W winds 10 to 15 kt Gusts up to 20 kt in the evening Seas 3 to 4 ft Wave Detail: SW 4 ft at 6 seconds and SE 1 foot at 9 seconds A chance of showers
SAT AND SAT NIGHT
W winds 10 to 15 kt Seas 2 to 3 ft Wave Detail: SW 3 ft at 6 seconds and SE 1 foot at 9 seconds
SUN
N winds 5 to 10 kt Seas 2 to 3 ft
SUN NIGHT AND MON
SE winds 5 to 10 kt Seas 3 to 4 ft A chance of showers
MON NIGHT
E winds around 10 kt Seas 3 to 4 ft A chance of showers
Reporting time 10:03 PM EDT Wed Jul 1 2026

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

OVERNIGHT
SW winds 15 to 20 kt with gusts up to 25 kt Seas 6 to 7 ft Wave Detail: SW 6 ft at 6 seconds and SE 1 foot at 10 seconds
THU
SW 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 10 seconds
THU NIGHT
SW winds 15 to 20 kt with gusts up to 25 kt Seas 4 to 6 ft Wave Detail: SW 5 ft at 6 seconds and SE 1 foot at 10 seconds
FRI
W winds 10 to 15 kt with gusts up to 20 kt Seas 3 to 4 ft Wave Detail: SW 4 ft at 6 seconds and SE 1 foot at 10 seconds
FRI NIGHT AND SAT
SW winds 10 to 15 kt with gusts up to 20 kt Seas 3 to 4 ft Wave Detail: SW 4 ft at 6 seconds and SE 1 foot at 9 seconds
SAT NIGHT
W winds 10 to 15 kt, becoming NW 5 to 10 kt after midnight Seas 2 to 3 ft Wave Detail: SW 3 ft at 5 seconds and SE 1 foot at 9 seconds
SUN
NE winds 5 to 10 kt Seas 2 to 3 ft
SUN NIGHT THROUGH MON NIGHT
E winds 10 to 15 kt with gusts up to 20 kt Seas 3 to 4 ft A chance of showers
Reporting time 10:03 PM EDT Wed Jul 1 2026

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