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

Day Sky High / Low Precip Wind Humidity
Wed
Jun 17 		Partly Cloudy
Close Hourly 		77º / 61º 2% S 10 mph 59%
5am Partly Cloudy 58º 2% SW 3 mph 84%
6am Mostly Cloudy 59º 2% SW 2 mph 85%
7am Mostly Cloudy 63º 2% SW 3 mph 77%
8am Partly Cloudy 65º 2% SSW 2 mph 72%
9am Partly Cloudy 69º 1% SSW 3 mph 64%
10am Partly Cloudy 71º 1% SSE 3 mph 55%
11am Partly Cloudy 73º 1% SE 6 mph 51%
12pm Partly Cloudy 74º 1% SE 6 mph 48%
1pm Partly Cloudy 75º 1% SE 7 mph 47%
2pm Mostly Cloudy 75º 0% SE 8 mph 47%
3pm Mostly Sunny 75º 0% SE 10 mph 47%
4pm Partly Cloudy 75º 0% SE 9 mph 45%
5pm Partly Cloudy 76º 0% S 10 mph 43%
6pm Partly Cloudy 75º 0% S 9 mph 44%
7pm Partly Cloudy 72º 0% S 8 mph 48%
8pm Sunny 70º 0% S 6 mph 54%
9pm Partly Cloudy 67º 1% SSW 6 mph 60%
10pm Partly Cloudy 65º 2% S 6 mph 67%
11pm Partly Cloudy 64º 3% S 5 mph 73%
Thu
Jun 18 		Cloudy/Wind
View Hourly 		75º / 65º 24% S 21 mph 71%
12am Partly Cloudy 63º 4% S 5 mph 77%
1am Mostly Cloudy 62º 4% S 4 mph 80%
2am Mostly Cloudy 62º 6% S 5 mph 80%
3am Mostly Cloudy 62º 6% S 5 mph 80%
4am Mostly Cloudy 62º 8% S 5 mph 82%
5am Mostly Cloudy 62º 11% S 6 mph 81%
6am Cloudy 63º 14% S 6 mph 81%
7am Cloudy 64º 8% SSE 8 mph 77%
8am Cloudy 67º 15% SSE 10 mph 73%
9am Cloudy 69º 13% SSE 11 mph 70%
10am Cloudy 70º 9% SSE 13 mph 68%
11am Cloudy 72º 19% SSE 16 mph 65%
12pm Cloudy 73º 6% SSE 18 mph 65%
1pm Cloudy/Wind 73º 19% S 20 mph 65%
2pm Cloudy/Wind 75º 24% S 20 mph 68%
3pm Cloudy/Wind 74º 24% S 21 mph 71%
4pm Cloudy/Wind 74º 22% S 21 mph 74%
5pm Cloudy 74º 24% SSW 19 mph 76%
6pm Cloudy 74º 21% SSW 16 mph 77%
7pm Mostly Cloudy 72º 22% SSW 14 mph 80%
8pm Partly Cloudy 73º 9% SW 11 mph 81%
9pm Mostly Clear 71º 24% SW 10 mph 85%
10pm Mostly Clear 71º 9% SW 9 mph 85%
11pm Mostly Clear 70º 7% SW 8 mph 85%
Fri
Jun 19 		Partly Cloudy
View Hourly 		83º / 64º 2% WSW 13 mph 46%
12am Partly Cloudy 70º 7% WSW 7 mph 83%
1am Mostly Clear 70º 6% WSW 6 mph 81%
2am Mostly Clear 69º 5% WSW 7 mph 78%
3am Mostly Clear 69º 10% W 7 mph 74%
4am Partly Cloudy 68º 4% WSW 7 mph 73%
Sat
Jun 20 		Mostly Sunny 79º / 62º 11% W 15 mph 46%
Sun
Jun 21 		PM Showers 77º / 62º 43% W 7 mph 51%
Mon
Jun 22 		Rain 75º / 62º 62% SSE 10 mph 65%
Tue
Jun 23 		AM Showers 75º / 62º 46% NNW 10 mph 67%
Wed
Jun 24 		Partly Cloudy 79º / 62º 12% N 7 mph 56%

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

Wednesday
High : 73ºF
SW wind 5 to 8 kt becoming SE 8 to 11 kt in the afternoon. Mostly sunny. Seas 1 to 2 ft.
Wednesday Night
Low : 60ºF
S wind 5 to 9 kt. Increasing clouds. Seas around 1 ft.
Thursday
High : 74ºF
SSE wind 9 to 14 kt increasing to 15 to 20 kt in the afternoon. Winds could gust as high as 28 kt. Showers likely, with thunderstorms also possible after 5pm. Patchy fog between 11am and 2pm, then Patchy fog after 5pm. Seas 1 ft building to 3 ft.
Thursday Night
Low : 65ºF
SSW wind 13 to 16 kt becoming WSW 10 to 13 kt after midnight. Winds could gust as high as 24 kt. A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 9pm. Patchy fog before 7pm. Seas 2 to 3 ft.
Juneteenth
High : 77ºF
WSW wind 11 to 13 kt. Mostly sunny. Seas 1 to 2 ft.
Friday Night
Low : 64ºF
W wind around 10 kt. Mostly clear. Seas around 2 ft.
Saturday
High : 76ºF
W wind around 13 kt. Sunny. Seas around 2 ft.
Saturday Night
Low : 63ºF
W wind around 10 kt. Mostly clear. Seas around 2 ft.
Sunday
High : 76ºF
WNW wind 7 to 9 kt. Sunny. Seas 1 to 2 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

    WednesdayThursdayFriday
    Wind Speed (MPH) 33710646112019106
    9am1pm5pm9pm1am5am9am1pm5pm9pm1am5am
    MPH 33710646112019106
    DIR SWSSWSESSSWSSSSESSSWSWWSW

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

    As Of: 3 minutes ago

    • 58ºF
    • 58ºF
    • 3mph
    • 0º (SW)
    • 3mph
    • Partly Cloudy
    • 10mi
    • 29.83"
    • 84%
    • 0ºF

    The weather right now in Brant Rock, Green Harbor River, MA is Partly Cloudy. The current temperature is 58°F, and the expected high and low for today, Wednesday, June 17, 2026, are 77° high temperature and 61°F low temperature. The wind is currently blowing at 3 miles per hour, and coming from the Southwest. The wind is gusting to 3 mph. With the wind and the atmosphere the temperature feels like 58° Fahrenheit. Expected precipitation is 2 percent, with current humidity at 84 percent, and air pressure at 29.83 in. Visibility is 10 nautical miles. There are 1 current weather alert(s).

    Weather Alerts
    Small Craft Advisory - 3:18am Wed Jun 17 2026

    ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM TO 7 PM EDT THURSDAY...

    WHAT: South winds 20 to 25 kt with gusts up to 30 kt and seas
    3 to 5 feet expected.

    WHERE: Massachusetts Bay and Ipswich Bay.

    WHEN: From 11 AM to 7 PM EDT Thursday.

    IMPACTS: Conditions will be hazardous to small craft.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

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

    &&