National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Light Snow Fog/Mist

33°F

1°C

Humidity 92%
Wind Speed NE 7 mph
Barometer 29.82 in (1009.6 mb)
Dewpoint 31°F (-1°C)
Visibility 2.50 mi
Wind Chill27°F (-3°C)
Last update 18 Jan 5:56 pm EST
Extended Forecast for

Fishers Island NY

Winter Weather Advisory January 18, 06:35pm until January 19, 04:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory January 18, 06:35pm until January 19, 04:00am

    NOW until 4:00am Mon

    Winter Weather Advisory

  • Tonight

    Low: 26 °F

    Rain/Snow
    then Snow

  • M.L.King Day

    M.L.King Day: Cloudy through mid morning, then gradual clearing, with a high near 34. Wind chill values between 15 and 20. Breezy, with a west wind 11 to 21 mph.

    High: 34 °F

    Mostly Cloudy
    then Mostly
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 21. Wind chill values between 10 and 20. Windy, with a west wind 21 to 29 mph.

    Low: 21 °F

    Partly Cloudy
    and Windy

  • Tuesday

    Tuesday: Sunny, with a high near 25. Wind chill values between 5 and 10. Breezy, with a west wind around 23 mph.

    High: 25 °F

    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Clear, with a low around 16. West wind 13 to 18 mph.

    Low: 16 °F

    Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 33. Breezy.

    Low: 33 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Thursday

    Thursday: A 30 percent chance of rain. Partly sunny, with a high near 39.

    High: 39 °F

    Chance Rain

Detailed Forecast

Tonight
Rain and snow, becoming all snow after 7pm, then gradually ending. Low around 26. Northeast wind 6 to 8 mph becoming northwest after midnight. Chance of precipitation is 100%. Total nighttime snow accumulation of 2 to 4 inches possible.
M.L.King Day
Cloudy through mid morning, then gradual clearing, with a high near 34. Wind chill values between 15 and 20. Breezy, with a west wind 11 to 21 mph.
Monday Night
Partly cloudy, with a low around 21. Wind chill values between 10 and 20. Windy, with a west wind 21 to 29 mph.
Tuesday
Sunny, with a high near 25. Wind chill values between 5 and 10. Breezy, with a west wind around 23 mph.
Tuesday Night
Clear, with a low around 16. West wind 13 to 18 mph.
Wednesday
Mostly sunny, with a high near 38.
Wednesday Night
Mostly cloudy, with a low around 33. Breezy.
Thursday
A 30 percent chance of rain. Partly sunny, with a high near 39.
Thursday Night
Partly cloudy, with a low around 23.
Friday
Mostly sunny, with a high near 30.
Friday Night
Mostly cloudy, with a low around 21.
Saturday
A 30 percent chance of snow. Partly sunny, with a high near 28.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 15.
Sunday
A 30 percent chance of snow. Partly sunny, with a high near 23.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fishers Island NY
 41.27°N 72.01°W (Elev. 7 ft)
Last Update:
6:17 pm EST Jan 18, 2026
Forecast Valid:
6pm EST Jan 18, 2026-6pm EST Jan 25, 2026
 
Forecast Discussion
 
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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