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

50°F

10°C

Humidity 77%
Wind Speed S 7 mph
Barometer 29.98 in (1015.2 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 10 Mar 2:56 pm EDT
Extended Forecast for

Fishers Island NY

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 38. South wind 3 to 8 mph.

    Low: 38 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly after 5pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 48. Southeast wind 6 to 10 mph.

    High: 48 °F

    Chance
    Showers and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: A chance of rain before 11pm, then a chance of rain and thunderstorms between 11pm and 2am, then a chance of rain after 2am. Mostly cloudy, with a low around 46. Breezy, with a southwest wind 16 to 20 mph. Chance of precipitation is 30%.

    Low: 46 °F

    Chance Rain
    and Breezy

  • Thursday

    Thursday: Rain likely before 5pm, then rain and snow likely. Mostly cloudy, with a temperature falling to around 40 by 5pm. Breezy, with a northwest wind 17 to 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 51 °F⇓

    Breezy. Rain
    Likely then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: Snow likely before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 32. Northwest wind 13 to 16 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 32 °F

    Snow Likely
    then Mostly
    Clear

  • Friday

    Friday: Increasing clouds, with a high near 42.

    High: 42 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A 30 percent chance of rain before 2am. Mostly cloudy, with a low around 38. Breezy.

    Low: 38 °F

    Chance Rain
    and Breezy

  • Saturday

    Saturday: Sunny, with a high near 45. Breezy.

    High: 45 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 38. South wind 3 to 8 mph.
Wednesday
A 30 percent chance of showers, mainly after 5pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 48. Southeast wind 6 to 10 mph.
Wednesday Night
A chance of rain before 11pm, then a chance of rain and thunderstorms between 11pm and 2am, then a chance of rain after 2am. Mostly cloudy, with a low around 46. Breezy, with a southwest wind 16 to 20 mph. Chance of precipitation is 30%.
Thursday
Rain likely before 5pm, then rain and snow likely. Mostly cloudy, with a temperature falling to around 40 by 5pm. Breezy, with a northwest wind 17 to 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday Night
Snow likely before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 32. Northwest wind 13 to 16 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Friday
Increasing clouds, with a high near 42.
Friday Night
A 30 percent chance of rain before 2am. Mostly cloudy, with a low around 38. Breezy.
Saturday
Sunny, with a high near 45. Breezy.
Saturday Night
Partly cloudy, with a low around 34.
Sunday
Mostly cloudy, with a high near 46.
Sunday Night
Rain. Low around 43. Breezy. Chance of precipitation is 80%.
Monday
Rain. High near 50. Windy. Chance of precipitation is 90%.
Monday Night
Rain and snow likely. Mostly cloudy, with a low around 30. Breezy. Chance of precipitation is 60%.
Tuesday
A 30 percent chance of snow. Partly sunny, with a high near 35.
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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:
1:57 pm EDT Mar 10, 2026
Forecast Valid:
3pm EDT Mar 10, 2026-6pm EDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation