Brant Rock, Green Harbor River, MA Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Tue
Jul 7 		Rain
Close Hourly 		69º / 64º 87% ENE 16 mph 92%
7am Rain 67º 83% ENE 9 mph 91%
8am Rain 68º 70% ENE 11 mph 89%
9am Light Rain 68º 70% ENE 12 mph 90%
10am Showers 68º 60% ENE 13 mph 92%
11am Showers 68º 43% ENE 15 mph 90%
12pm Showers 68º 58% ENE 15 mph 91%
1pm Rain 67º 87% ENE 15 mph 93%
2pm Rain 67º 87% ENE 15 mph 95%
3pm Rain 67º 80% ENE 16 mph 97%
4pm Rain 67º 71% ENE 15 mph 95%
5pm Rain 67º 78% NE 15 mph 93%
6pm Rain 67º 76% NE 14 mph 92%
7pm Rain 67º 69% NE 13 mph 91%
8pm Rain 67º 70% NE 13 mph 93%
9pm Rain 66º 60% NE 12 mph 97%
10pm Showers 65º 52% NE 11 mph 98%
11pm Showers 65º 57% NNE 11 mph 98%
Wed
Jul 8 		AM Showers
View Hourly 		74º / 66º 36% NE 12 mph 76%
12am Showers 65º 58% NNE 11 mph 97%
1am Rain 65º 63% NNE 11 mph 98%
2am Showers 65º 57% NNE 12 mph 98%
3am Showers 65º 50% NNE 11 mph 97%
4am Showers 65º 48% NNE 13 mph 95%
5am Showers 65º 52% NNE 13 mph 95%
6am Showers 65º 37% NNE 11 mph 93%
7am Showers 65º 36% NNE 11 mph 94%
8am Few Showers 67º 31% NNE 11 mph 89%
9am Mostly Cloudy 68º 11% NNE 12 mph 84%
10am Mostly Cloudy 68º 18% NNE 10 mph 82%
11am Mostly Cloudy 69º 19% NNE 11 mph 77%
12pm Partly Cloudy 70º 17% NNE 10 mph 76%
1pm Partly Cloudy 70º 6% NNE 9 mph 73%
2pm Partly Cloudy 71º 4% NNE 8 mph 71%
3pm Mostly Sunny 72º 3% NE 6 mph 70%
4pm Sunny 73º 3% ENE 5 mph 66%
5pm Sunny 73º 3% ENE 4 mph 63%
6pm Sunny 73º 3% ESE 3 mph 63%
7pm Sunny 72º 4% SE 2 mph 68%
8pm Sunny 70º 6% SE 2 mph 76%
9pm Clear 68º 6% S 2 mph 82%
10pm Clear 68º 5% SSW 3 mph 82%
11pm Partly Cloudy 68º 4% SW 5 mph 80%
Thu
Jul 9 		Partly Cloudy
View Hourly 		88º / 71º 6% SW 12 mph 59%
12am Clear 68º 5% SW 5 mph 84%
1am Clear 68º 6% WSW 6 mph 87%
2am Clear 68º 6% WSW 7 mph 88%
3am Clear 67º 6% WSW 7 mph 90%
4am Mostly Clear 67º 6% WSW 7 mph 90%
5am Clear 67º 6% WSW 7 mph 90%
6am Sunny 68º 6% WSW 6 mph 88%
Fri
Jul 10 		PM Thundershowers 85º / 69º 70% W 6 mph 69%
Sat
Jul 11 		Partly Cloudy 78º / 65º 8% NE 9 mph 59%
Sun
Jul 12 		Mostly Sunny 78º / 66º 11% NE 7 mph 57%
Mon
Jul 13 		Partly Cloudy 84º / 69º 18% SSW 12 mph 57%
Tue
Jul 14 		Partly Cloudy 87º / 73º 19% SW 10 mph 61%

Weather Radar for Brant Rock, Green Harbor River, MA See Radar

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* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Brant Rock, Green Harbor River, MA

Tuesday
High : 68ºF
E wind 12 to 16 kt, with gusts as high as 23 kt. Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Patchy fog. Seas around 3 ft.
Tuesday Night
Low : 63ºF
NNE wind 11 to 14 kt. Showers likely, mainly before 10pm. Patchy fog before 1am. Seas around 3 ft.
Wednesday
High : 71ºF
NNE wind 7 to 12 kt. Mostly cloudy. Seas 2 to 3 ft.
Wednesday Night
Low : 64ºF
Variable winds less than 5 kt becoming SW 5 to 7 kt in the evening. Partly cloudy. Seas around 2 ft.
Thursday
High : 82ºF
SSW wind 8 to 11 kt. Mostly sunny. Seas around 2 ft.
Thursday Night
Low : 69ºF
SW wind 9 to 12 kt. Mostly cloudy. Seas around 2 ft.
Friday
High : 83ºF
SW wind around 7 kt. Showers likely, mainly after 5pm. Seas around 1 ft.
Friday Night
Low : 68ºF
Variable winds 5 kt or less. A chance of showers. Seas around 1 ft.
Saturday
High : 77ºF
N wind 6 to 9 kt becoming NE in the afternoon. Mostly sunny. Seas around 1 ft.

NOAA Buoy Data Near Brant Rock, Green Harbor River, MA See Map

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    Wind Speed Forecast for Brant Rock, Green Harbor River, MA

    TuesdayWednesdayThursday
    Wind Speed (MPH) 9151613111111116257
    11am3pm7pm11pm3am7am11am3pm7pm11pm3am7am
    MPH 9151613111111116257
    DIR ENEENEENENENNENNENNENNENESESWWSW

    Current Weather Conditions In Brant Rock, Green Harbor River, MA

    As Of: 33 minutes ago

    • 67ºF
    • 67ºF
    • 9mph
    • 0º (ENE)
    • 9mph
    • Rain
    • 2mi
    • 30.08"
    • 91%
    • 0ºF

    The weather right now in Brant Rock, Green Harbor River, MA is Rain. The current temperature is 67°F, and the expected high and low for today, Tuesday, July 7, 2026, are 69° high temperature and 64°F low temperature. The wind is currently blowing at 9 miles per hour, and coming from the East Northeast. The wind is gusting to 9 mph. With the wind and the atmosphere the temperature feels like 67° Fahrenheit. Expected precipitation is 83 percent, with current humidity at 91 percent, and air pressure at 30.08 in. Visibility is 2.6 nautical miles. There are 2 current weather alert(s).

    Weather Alerts
    Flood Watch - 1:52am Tue Jul 7 2026

    ...FLOOD WATCH REMAINS IN EFFECT THROUGH THIS AFTERNOON...

    WHAT: Flash flooding caused by excessive rainfall continues to be
    possible.

    WHERE: A portion of southeastern Massachusetts, including the
    following areas, Barnstable MA, Eastern Plymouth MA, Northern
    Bristol MA, Southern Plymouth MA and Western Plymouth MA.

    WHEN: Through this afternoon.

    IMPACTS: Excessive runoff may result in flooding of rivers,
    creeks, streams, and other low-lying and flood-prone locations.

    ADDITIONAL DETAILS: - Periods of heavy rain are expected at times through this
    morning. Heavy rain will be most likely through this
    afternoon. Widespread additional rainfall amounts of 1-3
    inches are expected. However, narrow bands of torrential
    rainfall may result in localized amounts of 2-4 inches of
    rain
    - http://www.weather.gov/safety/flood

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    You should monitor later forecasts and be prepared to take action
    should Flash Flood Warnings be issued.

    &&

    Small Craft Advisory - 1:54am Tue Jul 7 2026

    ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...

    WHAT: East winds 10 to 20 kt with gusts up to 25 kt and seas
    3 to 5 feet expected.

    WHERE: Massachusetts Bay and Ipswich Bay.

    WHEN: Until 8 PM EDT this evening.

    IMPACTS: Conditions will be hazardous to small craft.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Inexperienced mariners, especially those operating smaller
    vessels, should avoid navigating in hazardous conditions.

    &&