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

20°F

-7°C

Humidity 38%
Wind Speed W 12 G 21 mph
Barometer 30.30 in (1025.9 mb)
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Wind Chill8°F (-13°C)
Last update 20 Jan 4:56 pm EST
Extended Forecast for

New London CT

  • Tonight

    Tonight: Mostly clear, with a low around 11. West wind 3 to 8 mph.

    Low: 11 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 38. Wind chill values between 10 and 20. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 38 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before 1am, then a chance of snow between 1am and 4am, then a chance of rain after 4am. Mostly cloudy, with a low around 30. Southwest wind 6 to 8 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    Low: 30 °F

    Chance
    Rain/Snow

  • Thursday

    Thursday: A 30 percent chance of rain before 7am. Mostly sunny, with a high near 42. West wind 7 to 13 mph, with gusts as high as 24 mph.

    High: 42 °F

    Chance Rain
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 23. West wind around 6 mph.

    Low: 23 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 32.

    High: 32 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 6.

    Low: 6 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny and cold, with a high near 16.

    High: 16 °F

    Cold

  • Saturday Night

    Saturday Night: A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 8.

    Low: 8 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 11. West wind 3 to 8 mph.
Wednesday
Increasing clouds, with a high near 38. Wind chill values between 10 and 20. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
A chance of rain and snow before 1am, then a chance of snow between 1am and 4am, then a chance of rain after 4am. Mostly cloudy, with a low around 30. Southwest wind 6 to 8 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Thursday
A 30 percent chance of rain before 7am. Mostly sunny, with a high near 42. West wind 7 to 13 mph, with gusts as high as 24 mph.
Thursday Night
Mostly cloudy, with a low around 23. West wind around 6 mph.
Friday
Partly sunny, with a high near 32.
Friday Night
Partly cloudy, with a low around 6.
Saturday
Mostly sunny and cold, with a high near 16.
Saturday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 8.
Sunday
A 50 percent chance of snow. Cloudy and cold, with a high near 20.
Sunday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 11.
Monday
A 30 percent chance of snow. Partly sunny, with a high near 25.
Monday Night
Partly cloudy, with a low around 11.
Tuesday
Sunny, with a high near 26.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
New London CT
 41.37°N 72.11°W (Elev. 125 ft)
Last Update:
3:33 pm EST Jan 20, 2026
Forecast Valid:
5pm EST Jan 20, 2026-6pm EST Jan 27, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation