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

35°F

2°C

Humidity 70%
Wind Speed S 7 mph
Barometer 30.12 in (1019.8 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 17 Jan 3:56 am EST
Extended Forecast for

Fishers Island NY

  • Today

    Today: A 50 percent chance of rain, mainly after 1pm. Mostly cloudy, with a high near 42. South wind 10 to 15 mph.

    High: 42 °F

    Slight Chance
    Rain then
    Chance Rain

  • Tonight

    Tonight: A 20 percent chance of rain after 4am. Mostly cloudy, with a low around 35. West wind 6 to 13 mph.

    Low: 35 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday

    Sunday: Snow likely, possibly mixed with rain, becoming all snow after 4pm. Cloudy, with a high near 37. West wind 6 to 8 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 37 °F

    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: A 40 percent chance of snow before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 28. Wind chill values between 20 and 25. Northwest wind 9 to 11 mph.

    Low: 28 °F

    Chance Snow

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 34. Breezy, with a west wind 14 to 23 mph.

    High: 34 °F

    Mostly Sunny
    and Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 21. Breezy.

    Low: 21 °F

    Partly Cloudy
    and Breezy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 26.

    High: 26 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 20.

    Low: 20 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

Detailed Forecast

Today
A 50 percent chance of rain, mainly after 1pm. Mostly cloudy, with a high near 42. South wind 10 to 15 mph.
Tonight
A 20 percent chance of rain after 4am. Mostly cloudy, with a low around 35. West wind 6 to 13 mph.
Sunday
Snow likely, possibly mixed with rain, becoming all snow after 4pm. Cloudy, with a high near 37. West wind 6 to 8 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Sunday Night
A 40 percent chance of snow before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 28. Wind chill values between 20 and 25. Northwest wind 9 to 11 mph.
M.L.King Day
Mostly sunny, with a high near 34. Breezy, with a west wind 14 to 23 mph.
Monday Night
Partly cloudy, with a low around 21. Breezy.
Tuesday
Mostly sunny, with a high near 26.
Tuesday Night
Mostly clear, with a low around 20.
Wednesday
Mostly sunny, with a high near 37.
Wednesday Night
Mostly cloudy, with a low around 33. Breezy.
Thursday
Partly sunny, with a high near 39.
Thursday Night
Mostly cloudy, with a low around 27.
Friday
Mostly sunny, with a high near 32.
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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:
12:59 am EST Jan 17, 2026
Forecast Valid:
4am EST Jan 17, 2026-6pm EST Jan 23, 2026
 
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Additional Resources

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Chance of Precipitation