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.

Fog/Mist

39°F

4°C

Humidity 96%
Wind Speed NE 7 mph
Barometer 30.37 in (1028.5 mb)
Dewpoint 38°F (3°C)
Visibility 4.00 mi
Wind Chill34°F (1°C)
Last update 3 Apr 4:56 am EDT
Extended Forecast for

Fishers Island NY

  • Today

    Today: A 20 percent chance of showers before 8am. Patchy fog before 4pm. Otherwise, mostly cloudy, with a high near 50. East wind 6 to 11 mph becoming southwest in the afternoon.

    High: 50 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Patchy
    Fog

  • Tonight

    Tonight: Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 47. Southwest wind 13 to 15 mph.

    Low: 47 °F

    Patchy Fog

  • Saturday

    Saturday: A 20 percent chance of showers after 2pm. Partly sunny, with a high near 56. Northwest wind 6 to 13 mph becoming east in the afternoon.

    High: 56 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 50 percent chance of showers, mainly after 8pm. Cloudy, with a low around 42. East wind 13 to 18 mph.

    Low: 42 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers. High near 53. Breezy, with a southwest wind 18 to 21 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Breezy.
    Showers
    Likely then
    Showers

  • Sunday Night

    Sunday Night: Showers, mainly before 8pm. Low around 41. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Showers then
    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers. Partly sunny, with a high near 46.

    High: 46 °F

    Chance
    Showers

Detailed Forecast

Today
A 20 percent chance of showers before 8am. Patchy fog before 4pm. Otherwise, mostly cloudy, with a high near 50. East wind 6 to 11 mph becoming southwest in the afternoon.
Tonight
Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 47. Southwest wind 13 to 15 mph.
Saturday
A 20 percent chance of showers after 2pm. Partly sunny, with a high near 56. Northwest wind 6 to 13 mph becoming east in the afternoon.
Saturday Night
A 50 percent chance of showers, mainly after 8pm. Cloudy, with a low around 42. East wind 13 to 18 mph.
Sunday
Showers. High near 53. Breezy, with a southwest wind 18 to 21 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Showers, mainly before 8pm. Low around 41. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Mostly sunny, with a high near 48.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 46.
Tuesday Night
Mostly clear, with a low around 33.
Wednesday
Sunny, with a high near 43.
Wednesday Night
Mostly clear, with a low around 38.
Thursday
Mostly sunny, with a high near 49.
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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:
2:20 am EDT Apr 3, 2026
Forecast Valid:
6am EDT Apr 3, 2026-6pm EDT Apr 9, 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