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

35°F

2°C

Humidity 78%
Wind Speed NW 3 mph
Barometer 29.91 in (1012.9 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 6 Dec 8:56 pm EST
Extended Forecast for

Groton / New London Airport CT

  • Tonight

    Tonight: Mostly clear, with a low around 25. Northwest wind around 7 mph.

    Low: 25 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 41. Wind chill values between 20 and 30. Northwest wind around 6 mph becoming south in the afternoon.

    High: 41 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 21. Wind chill values between 15 and 20. West wind 6 to 11 mph, with gusts as high as 21 mph.

    Low: 21 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 30. Wind chill values between 10 and 15. North wind 14 to 16 mph, with gusts as high as 26 mph.

    High: 30 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 13. North wind 6 to 10 mph.

    Low: 13 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 38.

    High: 38 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of rain after 1pm. Mostly cloudy, with a high near 46.

    High: 46 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 25. Northwest wind around 7 mph.
Sunday
Partly sunny, with a high near 41. Wind chill values between 20 and 30. Northwest wind around 6 mph becoming south in the afternoon.
Sunday Night
Partly cloudy, with a low around 21. Wind chill values between 15 and 20. West wind 6 to 11 mph, with gusts as high as 21 mph.
Monday
Sunny, with a high near 30. Wind chill values between 10 and 15. North wind 14 to 16 mph, with gusts as high as 26 mph.
Monday Night
Partly cloudy, with a low around 13. North wind 6 to 10 mph.
Tuesday
Increasing clouds, with a high near 38.
Tuesday Night
Mostly cloudy, with a low around 29.
Wednesday
A 40 percent chance of rain after 1pm. Mostly cloudy, with a high near 46.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 32.
Thursday
A 30 percent chance of rain before 1pm. Partly sunny, with a high near 42.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.
Friday
A chance of rain and snow. Partly sunny, with a high near 38. Chance of precipitation is 30%.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 20.
Saturday
A 30 percent chance of snow. Mostly sunny, with a high near 33.
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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:
4:40 pm EST Dec 6, 2025
Forecast Valid:
9pm EST Dec 6, 2025-6pm EST Dec 13, 2025
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation