National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

51°F

11°C

Humidity 89%
Wind Speed SW 6 mph
Barometer 29.91 in (1012.8 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 1 Apr 5:56 am EDT
Extended Forecast for

Fishers Island NY

  • Today

    Today: Showers, mainly after 5pm. High near 58. Southwest wind 9 to 16 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 58 °F

    Chance
    Showers then
    Showers

  • Tonight

    Tonight: Showers. Patchy fog after 2am. Low around 40. Northeast wind 8 to 16 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 40 °F

    Showers and
    Patchy Fog

  • Thursday

    Thursday: A 40 percent chance of rain, mainly before 2pm. Patchy fog before 2pm. Otherwise, cloudy, with a high near 40. Northeast wind 16 to 18 mph.

    High: 40 °F

    Chance Rain
    and Patchy
    Fog

  • Thursday Night

    Thursday Night: A slight chance of rain or drizzle before 8pm, then a chance of drizzle or light rain, mainly after 2am. Areas of fog after 8pm. Otherwise, cloudy, with a low around 40. East wind 8 to 14 mph. Chance of precipitation is 30%.

    Low: 40 °F

    Chance Light
    Rain and
    Areas Fog

  • Friday

    Friday: A chance of drizzle or light rain, mainly before 8am. Areas of fog before 2pm. Otherwise, mostly cloudy, with a high near 51. East wind 6 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 30%.

    High: 51 °F

    Chance Light
    Rain and
    Areas Fog

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 53. Breezy. Chance of precipitation is 60%.

    High: 53 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

Today
Showers, mainly after 5pm. High near 58. Southwest wind 9 to 16 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Showers. Patchy fog after 2am. Low around 40. Northeast wind 8 to 16 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A 40 percent chance of rain, mainly before 2pm. Patchy fog before 2pm. Otherwise, cloudy, with a high near 40. Northeast wind 16 to 18 mph.
Thursday Night
A slight chance of rain or drizzle before 8pm, then a chance of drizzle or light rain, mainly after 2am. Areas of fog after 8pm. Otherwise, cloudy, with a low around 40. East wind 8 to 14 mph. Chance of precipitation is 30%.
Friday
A chance of drizzle or light rain, mainly before 8am. Areas of fog before 2pm. Otherwise, mostly cloudy, with a high near 51. East wind 6 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 30%.
Friday Night
Mostly cloudy, with a low around 49.
Saturday
Partly sunny, with a high near 58.
Saturday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 46.
Sunday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 53. Breezy. Chance of precipitation is 60%.
Sunday Night
Showers likely, mainly before 2am. Mostly cloudy, with a low around 41. Breezy. Chance of precipitation is 60%.
Monday
A 30 percent chance of showers. Mostly sunny, with a high near 49.
Monday Night
Mostly clear, with a low around 38.
Tuesday
Mostly sunny, with a high near 46.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fishers Island NY
 41.27°N 72.01°W (Elev. 7 ft)
Last Update:
5:58 am EDT Apr 1, 2026
Forecast Valid:
6am EDT Apr 1, 2026-6pm EDT Apr 7, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation