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.

Overcast

42°F

6°C

Humidity 82%
Wind Speed SW 6 mph
Barometer 29.86 in (1011.1 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 22 Mar 11:56 am EDT
Extended Forecast for

Fishers Island NY

  • This Afternoon

    This Afternoon: A 40 percent chance of rain. Mostly cloudy, with a high near 45. South wind around 14 mph.

    High: 45 °F

    Chance Rain

  • Tonight

    Tonight: Rain before 11pm, then showers after 11pm. Low around 38. South wind 6 to 8 mph becoming north after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 38 °F

    Rain

  • Monday

    Monday: A 50 percent chance of rain before 2pm. Mostly cloudy, with a high near 41. North wind around 16 mph.

    High: 41 °F

    Chance Rain

  • Monday Night

    Monday Night: Partly cloudy, with a low around 32. Wind chill values between 25 and 30. Northwest wind 13 to 15 mph.

    Low: 32 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 40. North wind 8 to 10 mph becoming southwest in the afternoon.

    High: 40 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 36.

    Low: 36 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of rain after 2pm. Partly sunny, with a high near 47.

    High: 47 °F

    Partly Sunny
    then Chance
    Rain

Detailed Forecast

This Afternoon
A 40 percent chance of rain. Mostly cloudy, with a high near 45. South wind around 14 mph.
Tonight
Rain before 11pm, then showers after 11pm. Low around 38. South wind 6 to 8 mph becoming north after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A 50 percent chance of rain before 2pm. Mostly cloudy, with a high near 41. North wind around 16 mph.
Monday Night
Partly cloudy, with a low around 32. Wind chill values between 25 and 30. Northwest wind 13 to 15 mph.
Tuesday
Sunny, with a high near 40. North wind 8 to 10 mph becoming southwest in the afternoon.
Tuesday Night
Increasing clouds, with a low around 36.
Wednesday
Partly sunny, with a high near 45.
Wednesday Night
Mostly cloudy, with a low around 39.
Thursday
A 30 percent chance of rain after 2pm. Partly sunny, with a high near 47.
Thursday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 42. Windy. Chance of precipitation is 60%.
Friday
Rain likely. Partly sunny, with a high near 47. Breezy. Chance of precipitation is 60%.
Friday Night
Partly cloudy, with a low around 28.
Saturday
Sunny, with a high near 38.
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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:
2:51 am EDT Mar 22, 2026
Forecast Valid:
12pm EDT Mar 22, 2026-6pm EDT Mar 28, 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