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

60°F

16°C

Humidity 72%
Wind Speed NA
Barometer 29.84 in (1010.4 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 14 Apr 5:56 pm EDT
Extended Forecast for

Fishers Island NY

  • Tonight

    Tonight: A chance of showers and thunderstorms between 8pm and 11pm. Partly cloudy, with a low around 50. Southwest wind 8 to 11 mph. Chance of precipitation is 30%.

    Low: 50 °F

    Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 62. South wind 6 to 11 mph.

    High: 62 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 51. Southeast wind 7 to 10 mph becoming southwest in the evening. Chance of precipitation is 40%.

    Low: 51 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 62. South wind 7 to 11 mph.

    High: 62 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 51. Southwest wind 7 to 10 mph.

    Low: 51 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms between 2pm and 5pm, then a chance of showers after 5pm. Partly sunny, with a high near 62. Chance of precipitation is 40%.

    High: 62 °F

    Partly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers before 8pm. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms between 8pm and 11pm. Partly cloudy, with a low around 50. Southwest wind 8 to 11 mph. Chance of precipitation is 30%.
Wednesday
A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 62. South wind 6 to 11 mph.
Wednesday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 51. Southeast wind 7 to 10 mph becoming southwest in the evening. Chance of precipitation is 40%.
Thursday
Partly sunny, with a high near 62. South wind 7 to 11 mph.
Thursday Night
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 51. Southwest wind 7 to 10 mph.
Friday
A chance of showers and thunderstorms between 2pm and 5pm, then a chance of showers after 5pm. Partly sunny, with a high near 62. Chance of precipitation is 40%.
Friday Night
A 30 percent chance of showers before 8pm. Mostly cloudy, with a low around 50.
Saturday
Partly sunny, with a high near 55.
Saturday Night
Mostly cloudy, with a low around 48.
Sunday
A 50 percent chance of showers. Mostly cloudy, with a high near 55.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 42.
Monday
Mostly sunny, with a high near 46. Breezy.
Monday Night
Mostly clear, with a low around 36.
Tuesday
Sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fishers Island NY
 41.27°N 72.01°W (Elev. 7 ft)
Last Update:
2:12 pm EDT Apr 14, 2026
Forecast Valid:
6pm EDT Apr 14, 2026-6pm EDT Apr 21, 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