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

40°F

4°C

Humidity 45%
Wind Speed NW 5 mph
Barometer 30.01 in (1016.1 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 3 Dec 2:56 pm EST
Extended Forecast for

Groton / New London Airport CT

  • Tonight

    Tonight: Mostly clear, with a low around 27. Wind chill values between 20 and 25. Calm wind becoming west 5 to 9 mph in the evening.

    Low: 27 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 40. Wind chill values between 20 and 30. West wind 11 to 18 mph, with gusts as high as 31 mph.

    High: 40 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 12. Wind chill values between 5 and 10. Northwest wind 8 to 18 mph, with gusts as high as 34 mph.

    Low: 12 °F

    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 32. Wind chill values between 5 and 15. North wind 5 to 8 mph becoming southwest in the afternoon.

    High: 32 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A 30 percent chance of light snow, mainly after 1am. Mostly cloudy, with a low around 23. South wind around 6 mph becoming north after midnight.

    Low: 23 °F

    Chance Light
    Snow

  • Saturday

    Saturday: A 40 percent chance of rain. Mostly cloudy, with a high near 39.

    High: 39 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 27. Wind chill values between 20 and 25. Calm wind becoming west 5 to 9 mph in the evening.
Thursday
Increasing clouds, with a high near 40. Wind chill values between 20 and 30. West wind 11 to 18 mph, with gusts as high as 31 mph.
Thursday Night
Mostly clear, with a low around 12. Wind chill values between 5 and 10. Northwest wind 8 to 18 mph, with gusts as high as 34 mph.
Friday
Increasing clouds, with a high near 32. Wind chill values between 5 and 15. North wind 5 to 8 mph becoming southwest in the afternoon.
Friday Night
A 30 percent chance of light snow, mainly after 1am. Mostly cloudy, with a low around 23. South wind around 6 mph becoming north after midnight.
Saturday
A 40 percent chance of rain. Mostly cloudy, with a high near 39.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Mostly sunny, with a high near 41.
Sunday Night
Mostly cloudy, with a low around 21.
Monday
Mostly sunny, with a high near 30.
Monday Night
Mostly clear, with a low around 13.
Tuesday
Mostly sunny, with a high near 35.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of rain. Partly sunny, with a high near 41.
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Forecast Area
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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:
12:40 pm EST Dec 3, 2025
Forecast Valid:
3pm EST Dec 3, 2025-6pm EST Dec 10, 2025
 
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Additional Resources

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