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

36°F

2°C

Humidity 82%
Wind Speed SW 6 mph
Barometer 29.64 in (1003.7 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 25 Feb 3:56 pm EST
Extended Forecast for

Groton / New London Airport CT

  • Tonight

    Tonight: Partly cloudy, with a low around 29. Southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 29 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 38. Wind chill values between 20 and 30. Northwest wind around 7 mph.

    High: 38 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 20. North wind 3 to 5 mph.

    Low: 20 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 37. Wind chill values between 20 and 30. Calm wind becoming south around 6 mph in the afternoon.

    High: 37 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 27. South wind 3 to 5 mph.

    Low: 27 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 36.

    High: 36 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 16.

    Low: 16 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 29. Southwest wind around 10 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 38. Wind chill values between 20 and 30. Northwest wind around 7 mph.
Thursday Night
Mostly clear, with a low around 20. North wind 3 to 5 mph.
Friday
Sunny, with a high near 37. Wind chill values between 20 and 30. Calm wind becoming south around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 27. South wind 3 to 5 mph.
Saturday
Mostly sunny, with a high near 45.
Saturday Night
Partly cloudy, with a low around 28.
Sunday
A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 36.
Sunday Night
Partly cloudy, with a low around 16.
Monday
A 30 percent chance of snow after 1pm. Mostly cloudy, with a high near 26.
Monday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 14.
Tuesday
A chance of rain and snow. Mostly cloudy, with a high near 35. Chance of precipitation is 30%.
Tuesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 25.
Wednesday
A 40 percent chance of rain. Partly sunny, with a high near 42.
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ABOUT THIS FORECAST

 
Point Forecast:
Groton / New London Airport CT
 41.34°N 72.05°W (Elev. 49 ft)
Last Update:
12:43 pm EST Feb 25, 2026
Forecast Valid:
4pm EST Feb 25, 2026-6pm EST Mar 4, 2026
 
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Additional Resources

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Chance of Precipitation