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.

Partly Cloudy

31°F

-1°C

Humidity 76%
Wind Speed W 10 mph
Barometer 29.88 in (1011.8 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 19 Jan 11:56 am EST
Extended Forecast for

3 Miles SE Old Lyme CT

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 32. Wind chill values between 20 and 25. West wind 15 to 17 mph, with gusts as high as 28 mph.

    High: 32 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 18. Wind chill values between 5 and 10. West wind 14 to 16 mph, with gusts as high as 29 mph.

    Low: 18 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 25. Wind chill values between 5 and 10. West wind 11 to 14 mph, with gusts as high as 28 mph.

    High: 25 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 14. Wind chill values between 5 and 10. West wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 14 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 38. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 38 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 30.

    High: 30 °F

    Partly Sunny

Detailed Forecast

M.L.King Day
Mostly sunny, with a high near 32. Wind chill values between 20 and 25. West wind 15 to 17 mph, with gusts as high as 28 mph.
Tonight
Mostly clear, with a low around 18. Wind chill values between 5 and 10. West wind 14 to 16 mph, with gusts as high as 29 mph.
Tuesday
Sunny, with a high near 25. Wind chill values between 5 and 10. West wind 11 to 14 mph, with gusts as high as 28 mph.
Tuesday Night
Mostly clear, with a low around 14. Wind chill values between 5 and 10. West wind 6 to 10 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 38. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 30.
Thursday
Mostly sunny, with a high near 40.
Thursday Night
Partly cloudy, with a low around 22.
Friday
Partly sunny, with a high near 30.
Friday Night
Mostly cloudy, with a low around 10.
Saturday
Mostly sunny and cold, with a high near 20.
Saturday Night
Partly cloudy, with a low around 5.
Sunday
Mostly sunny and cold, with a high near 19.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Old Lyme CT
 41.28°N 72.3°W (Elev. 0 ft)
Last Update:
9:44 am EST Jan 19, 2026
Forecast Valid:
12pm EST Jan 19, 2026-6pm EST Jan 25, 2026
 
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