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.

Partly Cloudy

58°F

14°C

Humidity 70%
Wind Speed NA
Barometer 29.95 in (1014.1 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 31 Mar 3:56 pm EDT
Extended Forecast for

Fishers Island NY

  • Tonight

    Tonight: A 20 percent chance of showers after 2am. Mostly cloudy, with a steady temperature around 52. Southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 52 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A 50 percent chance of showers, mainly after 8am. Partly sunny, with a high near 63. Southwest wind 11 to 18 mph.

    High: 63 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers, mainly before 2am. Low around 41. Northeast wind 8 to 17 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Showers

  • Thursday

    Thursday: A 30 percent chance of light rain, mainly before noon. Patchy fog before 2pm. Otherwise, cloudy, with a steady temperature around 42. Northeast wind around 18 mph.

    High: 42 °F

    Chance Light
    Rain and
    Patchy Fog

  • Thursday Night

    Thursday Night: A 20 percent chance of light rain. Areas of fog after midnight. Otherwise, cloudy, with a low around 39. East wind 10 to 15 mph.

    Low: 39 °F

    Slight Chance
    Light Rain
    and Areas Fog

  • Friday

    Friday: Areas of fog before noon. Otherwise, mostly cloudy, with a high near 55.

    High: 55 °F

    Areas Fog
    then Mostly
    Cloudy

  • Friday Night

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

    Low: 49 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of showers after 2am. Mostly cloudy, with a steady temperature around 52. Southwest wind around 10 mph, with gusts as high as 20 mph.
Wednesday
A 50 percent chance of showers, mainly after 8am. Partly sunny, with a high near 63. Southwest wind 11 to 18 mph.
Wednesday Night
Showers, mainly before 2am. Low around 41. Northeast wind 8 to 17 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A 30 percent chance of light rain, mainly before noon. Patchy fog before 2pm. Otherwise, cloudy, with a steady temperature around 42. Northeast wind around 18 mph.
Thursday Night
A 20 percent chance of light rain. Areas of fog after midnight. Otherwise, cloudy, with a low around 39. East wind 10 to 15 mph.
Friday
Areas of fog before noon. Otherwise, mostly cloudy, with a high near 55.
Friday Night
Mostly cloudy, with a low around 49.
Saturday
Mostly sunny, with a high near 58.
Saturday Night
Mostly cloudy, with a low around 46.
Sunday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 55. Breezy. Chance of precipitation is 60%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Monday
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
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fishers Island NY
 41.27°N 72.01°W (Elev. 7 ft)
Last Update:
2:28 pm EDT Mar 31, 2026
Forecast Valid:
4pm EDT Mar 31, 2026-6pm EDT Apr 7, 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