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.

A Few Clouds

39°F

4°C

Humidity 48%
Wind Speed W 8 G 17 mph
Barometer 29.82 in (1009.7 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 17 Nov 6:56 pm EST
Extended Forecast for

Groton / New London Airport CT

  • Tonight

    Tonight: Mostly clear, with a low around 30. Wind chill values between 20 and 25. West wind 13 to 17 mph, with gusts as high as 30 mph.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 45. Wind chill values between 20 and 30 early. West wind 11 to 14 mph.

    High: 45 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 30. Northwest wind 3 to 8 mph.

    Low: 30 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 46. North wind 3 to 7 mph.

    High: 46 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 29. Calm wind becoming north around 5 mph after midnight.

    Low: 29 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 47.

    High: 47 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Friday

    Friday: A 50 percent chance of rain. Mostly cloudy, with a high near 53.

    High: 53 °F

    Chance Rain

  • Friday Night

    Friday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 30. Wind chill values between 20 and 25. West wind 13 to 17 mph, with gusts as high as 30 mph.
Tuesday
Sunny, with a high near 45. Wind chill values between 20 and 30 early. West wind 11 to 14 mph.
Tuesday Night
A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 30. Northwest wind 3 to 8 mph.
Wednesday
Mostly sunny, with a high near 46. North wind 3 to 7 mph.
Wednesday Night
Partly cloudy, with a low around 29. Calm wind becoming north around 5 mph after midnight.
Thursday
Mostly cloudy, with a high near 47.
Thursday Night
Mostly cloudy, with a low around 37.
Friday
A 50 percent chance of rain. Mostly cloudy, with a high near 53.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 37.
Saturday
A 40 percent chance of rain. Partly sunny, with a high near 48.
Saturday Night
Partly cloudy, with a low around 30.
Sunday
Mostly sunny, with a high near 47.
Sunday Night
Partly cloudy, with a low around 34.
Monday
Mostly sunny, with a high near 50.
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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:
5:57 pm EST Nov 17, 2025
Forecast Valid:
7pm EST Nov 17, 2025-6pm EST Nov 24, 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