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

34°F

1°C

Humidity 64%
Wind Speed NW 5 mph
Barometer 30.15 in (1020.8 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 18 Nov 8:56 pm EST
Extended Forecast for

3 Miles WSW Fishers Island NY

  • Tonight

    Tonight: Mostly cloudy, with a low around 39. Northwest wind 6 to 8 mph.

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 47. Northwest wind around 6 mph.

    High: 47 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 39. North wind 5 to 7 mph.

    Low: 39 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Partly sunny, with a high near 49. Northeast wind 6 to 8 mph becoming east in the afternoon.

    High: 49 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 45. East wind around 6 mph becoming south after midnight.

    Low: 45 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Friday

    Friday: Mostly cloudy, with a high near 54.

    High: 54 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 39. Northwest wind 6 to 8 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 47. Northwest wind around 6 mph.
Wednesday Night
Increasing clouds, with a low around 39. North wind 5 to 7 mph.
Thursday
Partly sunny, with a high near 49. Northeast wind 6 to 8 mph becoming east in the afternoon.
Thursday Night
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 45. East wind around 6 mph becoming south after midnight.
Friday
Mostly cloudy, with a high near 54.
Friday Night
Mostly cloudy, with a low around 43.
Saturday
Mostly sunny, with a high near 49.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Mostly sunny, with a high near 49.
Sunday Night
Partly cloudy, with a low around 42.
Monday
Mostly sunny, with a high near 51.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 52.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Fishers Island NY
 41.25°N 72.04°W (Elev. 0 ft)
Last Update:
8:17 pm EST Nov 18, 2025
Forecast Valid:
9pm EST Nov 18, 2025-6pm EST Nov 25, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation