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

40°F

4°C

Humidity 58%
Wind Speed W 14 G 23 mph
Barometer 29.85 in (1010.6 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 12 Nov 2:56 am EST
Extended Forecast for

Fishers Island NY

  • Overnight

    Overnight: Mostly cloudy, with a low around 41. Breezy, with a west wind around 22 mph.

    Low: 41 °F

    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Cloudy, then gradually becoming mostly sunny, with a high near 50. Breezy, with a west wind 20 to 22 mph.

    High: 50 °F

    Decreasing
    Clouds and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 45. Breezy, with a west wind 18 to 22 mph.

    Low: 45 °F

    Decreasing
    Clouds and
    Breezy

  • Thursday

    Thursday: Mostly sunny, with a high near 50. Breezy, with a west wind 17 to 20 mph.

    High: 50 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 39. Breezy, with a northwest wind 17 to 20 mph.

    Low: 39 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Friday

    Friday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of rain after 1am. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 41. Breezy, with a west wind around 22 mph.
Wednesday
Cloudy, then gradually becoming mostly sunny, with a high near 50. Breezy, with a west wind 20 to 22 mph.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 45. Breezy, with a west wind 18 to 22 mph.
Thursday
Mostly sunny, with a high near 50. Breezy, with a west wind 17 to 20 mph.
Thursday Night
Mostly clear, with a low around 39. Breezy, with a northwest wind 17 to 20 mph.
Friday
Sunny, with a high near 47.
Friday Night
Mostly clear, with a low around 35.
Saturday
Sunny, with a high near 47.
Saturday Night
A 50 percent chance of rain after 1am. Mostly cloudy, with a low around 42.
Sunday
Rain, mainly before 1pm. High near 56. Breezy. Chance of precipitation is 80%.
Sunday Night
Partly cloudy, with a low around 42. Breezy.
Monday
Mostly sunny, with a high near 47. Breezy.
Monday Night
Partly cloudy, with a low around 39. Breezy.
Tuesday
Mostly sunny, with a high near 46.
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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:
1:00 am EST Nov 12, 2025
Forecast Valid:
3am EST Nov 12, 2025-6pm EST Nov 18, 2025
 
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Additional Resources

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High Temperature

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Chance of Precipitation