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

30°F

-1°C

Humidity 47%
Wind Speed W 16 G 28 mph
Barometer 30.01 in (1016.3 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 19 Jan 11:56 pm EST
Extended Forecast for

3 Miles SE Old Lyme CT

  • Overnight

    Overnight: Mostly clear, with a low around 17. Wind chill values between 5 and 10. West wind 14 to 17 mph, with gusts as high as 29 mph.

    Low: 17 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 25. Wind chill values between 5 and 15. West wind 13 to 15 mph, with gusts as high as 26 mph.

    High: 25 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 15. Wind chill values between 5 and 10. West wind 6 to 13 mph, with gusts as high as 23 mph.

    Low: 15 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 37. Wind chill values between 5 and 15. Southwest wind 6 to 11 mph, with gusts as high as 22 mph.

    High: 37 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a steady temperature around 35. South wind 10 to 14 mph, with gusts as high as 24 mph.

    Low: 35 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 9.

    Low: 9 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 17. Wind chill values between 5 and 10. West wind 14 to 17 mph, with gusts as high as 29 mph.
Tuesday
Sunny, with a high near 25. Wind chill values between 5 and 15. West wind 13 to 15 mph, with gusts as high as 26 mph.
Tuesday Night
Mostly clear, with a low around 15. Wind chill values between 5 and 10. West wind 6 to 13 mph, with gusts as high as 23 mph.
Wednesday
Increasing clouds, with a high near 37. Wind chill values between 5 and 15. Southwest wind 6 to 11 mph, with gusts as high as 22 mph.
Wednesday Night
Mostly cloudy, with a steady temperature around 35. South wind 10 to 14 mph, with gusts as high as 24 mph.
Thursday
Mostly sunny, with a high near 41.
Thursday Night
Partly cloudy, with a low around 24.
Friday
Mostly sunny, with a high near 31.
Friday Night
Mostly cloudy, with a low around 9.
Saturday
Partly sunny and cold, with a high near 18.
Saturday Night
Mostly cloudy, with a low around 6.
Sunday
A 30 percent chance of snow. Mostly cloudy and cold, with a high near 19.
Sunday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 8.
Monday
Mostly sunny, with a high near 23.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Old Lyme CT
 41.28°N 72.3°W (Elev. 0 ft)
Last Update:
7:14 pm EST Jan 19, 2026
Forecast Valid:
12am EST Jan 20, 2026-6pm EST Jan 26, 2026
 
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