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.

Light Rain

46°F

8°C

Humidity 86%
Wind Speed Calm
Barometer 30.02 in (1016.4 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 26 Mar 7:56 am EDT
Extended Forecast for

Fishers Island NY

  • Today

    Today: A 30 percent chance of showers after 5pm. Partly sunny, with a high near 49. Southwest wind 14 to 16 mph, with gusts as high as 26 mph.

    High: 49 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tonight

    Tonight: Showers. Low around 45. Breezy, with a southwest wind 17 to 22 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 45 °F

    Showers and
    Breezy

  • Friday

    Friday: Showers likely, mainly before 8am. Cloudy, with a high near 48. North wind 10 to 14 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 48 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A slight chance of rain after 8pm, mixing with snow after 2am. Mostly cloudy, with a low around 31. Wind chill values between 25 and 30. Northeast wind 7 to 10 mph. Chance of precipitation is 20%.

    Low: 31 °F

    Slight Chance
    Rain then
    Slight Chance
    Rain/Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 38. North wind 14 to 16 mph.

    High: 38 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 48. Breezy.

    High: 48 °F

    Mostly Cloudy
    and Breezy

Detailed Forecast

Today
A 30 percent chance of showers after 5pm. Partly sunny, with a high near 49. Southwest wind 14 to 16 mph, with gusts as high as 26 mph.
Tonight
Showers. Low around 45. Breezy, with a southwest wind 17 to 22 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers likely, mainly before 8am. Cloudy, with a high near 48. North wind 10 to 14 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A slight chance of rain after 8pm, mixing with snow after 2am. Mostly cloudy, with a low around 31. Wind chill values between 25 and 30. Northeast wind 7 to 10 mph. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 38. North wind 14 to 16 mph.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
Mostly sunny, with a high near 42.
Sunday Night
Mostly cloudy, with a low around 38.
Monday
Mostly cloudy, with a high near 48. Breezy.
Monday Night
Mostly cloudy, with a low around 44. Breezy.
Tuesday
A 40 percent chance of rain. Partly sunny, with a high near 49.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 41.
Wednesday
A 40 percent chance of rain. Mostly cloudy, with a high near 47.
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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:
5:42 am EDT Mar 26, 2026
Forecast Valid:
8am EDT Mar 26, 2026-6pm EDT Apr 1, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation