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Southwest Point, RI - Block Island Marine Weather Forecast

Station MTKN6 - 8510560 - Montauk, NY

December 4, 2025 2:18 pm EST
Location: 41.048N 71.959W
Atmospheric Pressure: 29.90 in (1012.6 mb)
Water Temperature: 41.7°F (5.4°C)


This Afternoon - 42°F
Dec 04, 2025
20 mph NW
Mostly Sunny
Mostly sunny. High near 42, with temperatures falling to around 40 in the afternoon. Northwest wind around 20 mph, with gusts as high as 30 mph.
Tonight - 22°F
Dec 04, 2025
8 to 22 mph N
Mostly Clear
Mostly clear, with a low around 22. Wind chill values as low as 11. North wind 8 to 22 mph.
Friday - 41°F
Dec 05, 2025
7 mph E
Mostly Sunny
Mostly sunny. High near 41, with temperatures falling to around 36 in the afternoon. Wind chill values as low as 14. East wind around 7 mph.
Friday Night - 35°F
Dec 05, 2025
6 mph SE
Chance Rain And Snow
A chance of rain and snow after 7pm. Cloudy. Low around 35, with temperatures rising to around 40 overnight. Southeast wind around 6 mph. Chance of precipitation is 40%.
Saturday - 46°F
Dec 06, 2025
6 to 9 mph SW
Chance Light Rain
A chance of rain. Mostly cloudy. High near 46, with temperatures falling to around 43 in the afternoon. Southwest wind 6 to 9 mph. Chance of precipitation is 40%.
Saturday Night - 36°F
Dec 06, 2025
9 mph W
Slight Chance Light Rain then Partly Cloudy
A slight chance of rain before 7pm. Partly cloudy. Low around 36, with temperatures rising to around 38 overnight.
Sunday - 44°F
Dec 07, 2025
8 mph NW
Partly Sunny
Partly sunny, with a high near 44.
Sunday Night - 30°F
Dec 07, 2025
7 to 13 mph W
Mostly Cloudy then Slight Chance Light Rain
A slight chance of rain after 1am. Mostly cloudy, with a low around 30.
Monday - 38°F
Dec 08, 2025
15 mph NW
Slight Chance Light Rain then Mostly Sunny
A slight chance of rain before 7am. Mostly sunny, with a high near 38.
Monday Night - 24°F
Dec 08, 2025
9 to 15 mph N
Mostly Clear
Mostly clear, with a low around 24.
Tuesday - 44°F
Dec 09, 2025
9 to 14 mph W
Partly Sunny then Slight Chance Rain And Snow
A slight chance of rain and snow after 1pm. Partly sunny, with a high near 44.
Tuesday Night - 36°F
Dec 09, 2025
12 to 15 mph SW
Chance Rain And Snow
A chance of rain and snow. Mostly cloudy, with a low around 36. Chance of precipitation is 50%.
Wednesday - 47°F
Dec 10, 2025
12 mph SW
Slight Chance Light Rain
A slight chance of rain. Mostly cloudy, with a high near 47.
Wednesday Night - 39°F
Dec 10, 2025
9 to 13 mph SW
Chance Light Rain
A chance of rain. Mostly cloudy, with a low around 39.

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