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.

Unknown Precip

35°F

2°C

Humidity 82%
Wind Speed S 14 G 23 mph
Barometer 29.76 in (1007.6 mb)
Dewpoint 30°F (-1°C)
Visibility 9.00 mi
Wind Chill26°F (-3°C)
Last update 25 Feb 7:56 am EST
Extended Forecast for

3 Miles SE South Lyme CT

  • Today

    Today: Snow, possibly mixing with rain after 1pm, then gradually ending. High near 39. Wind chill values between 25 and 30. Southwest wind 13 to 17 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 1 to 2 inches possible.

    High: 39 °F

    Snow then
    Rain/Snow

  • Tonight

    Tonight: Partly cloudy, with a low around 30. Southwest wind around 10 mph.

    Low: 30 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after 1pm. Mostly sunny, with a high near 38. Wind chill values between 20 and 30. West wind 6 to 8 mph.

    High: 38 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before 1am. Partly cloudy, with a low around 25. Light north wind.

    Low: 25 °F

    Slight Chance
    Snow

  • Friday

    Friday: Mostly sunny, with a high near 37. Light and variable wind becoming west around 5 mph in the afternoon.

    High: 37 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

Detailed Forecast

Today
Snow, possibly mixing with rain after 1pm, then gradually ending. High near 39. Wind chill values between 25 and 30. Southwest wind 13 to 17 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 1 to 2 inches possible.
Tonight
Partly cloudy, with a low around 30. Southwest wind around 10 mph.
Thursday
A 20 percent chance of snow after 1pm. Mostly sunny, with a high near 38. Wind chill values between 20 and 30. West wind 6 to 8 mph.
Thursday Night
A 20 percent chance of snow before 1am. Partly cloudy, with a low around 25. Light north wind.
Friday
Mostly sunny, with a high near 37. Light and variable wind becoming west around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 29.
Saturday
Mostly sunny, with a high near 43.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Mostly sunny, with a high near 38.
Sunday Night
Partly cloudy, with a low around 20.
Monday
A 40 percent chance of snow. Partly sunny, with a high near 29.
Monday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 19.
Tuesday
A 30 percent chance of snow. Partly sunny, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE South Lyme CT
 41.3°N 72.24°W (Elev. 0 ft)
Last Update:
1:23 am EST Feb 25, 2026
Forecast Valid:
8am EST Feb 25, 2026-6pm EST Mar 3, 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