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Black Rock Harbor, CT Marine Weather Forecast

Today - 88°F
Jul 09, 2025
2 to 7 mph SW
Partly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of rain showers between 2pm and 5pm, then a slight chance of showers and thunderstorms. Partly sunny. High near 88, with temperatures falling to around 85 in the afternoon. Heat index values as high as 95. Southwest wind 2 to 7 mph. Chance of precipitation is 20%.
Tonight - 70°F
Jul 09, 2025
2 to 6 mph SE
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 2am, then showers and thunderstorms likely. Mostly cloudy. Low around 70, with temperatures rising to around 72 overnight. Southeast wind 2 to 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Thursday - 81°F
Jul 10, 2025
2 to 7 mph SE
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy. High near 81, with temperatures falling to around 79 in the afternoon. Southeast wind 2 to 7 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night - 70°F
Jul 10, 2025
2 to 6 mph SE
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm, then a chance of showers and thunderstorms between 11pm and 2am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Southeast wind 2 to 6 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Friday - 82°F
Jul 11, 2025
2 to 6 mph E
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
A slight chance of rain showers before 2pm, then a slight chance of showers and thunderstorms. Mostly cloudy. High near 82, with temperatures falling to around 80 in the afternoon. East wind 2 to 6 mph. Chance of precipitation is 20%.
Friday Night - 70°F
Jul 11, 2025
2 to 6 mph E
Slight Chance Showers And Thunderstorms then Mostly Cloudy
A slight chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 70.
Saturday - 85°F
Jul 12, 2025
2 to 7 mph E
Partly Sunny
Partly sunny, with a high near 85.
Saturday Night - 69°F
Jul 12, 2025
2 to 7 mph SE
Partly Cloudy
Partly cloudy, with a low around 69.
Sunday - 86°F
Jul 13, 2025
2 to 8 mph SE
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86.
Sunday Night - 70°F
Jul 13, 2025
2 to 7 mph S
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 2am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.
Monday - 87°F
Jul 14, 2025
2 to 8 mph S
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 30%.
Monday Night - 70°F
Jul 14, 2025
2 to 7 mph SW
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 70. Chance of precipitation is 30%.
Tuesday - 88°F
Jul 15, 2025
2 to 7 mph SW
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
A slight chance of rain showers between 8am and 2pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Tuesday Night - 71°F
Jul 15, 2025
2 to 6 mph SW
Slight Chance Showers And Thunderstorms then Partly Cloudy
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71.

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