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 46%
Wind Speed N 5 mph
Barometer 30.31 in (1026.2 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 1 Dec 5:56 pm EST
Extended Forecast for

Groton / New London Airport CT

  • Tonight

    Tonight: Increasing clouds, with a low around 26. North wind 5 to 10 mph becoming east after midnight.

    Low: 26 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Rain, mainly after 10am. High near 44. Wind chill values between 25 and 35. East wind 9 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 44 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain, mainly before 7pm. Low around 27. Wind chill values between 15 and 20. Blustery, with a northwest wind 17 to 23 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 27 °F

    Blustery.
    Rain then
    Chance Rain

  • Wednesday

    Wednesday: Sunny, with a high near 39. Wind chill values between 20 and 30. Northwest wind 6 to 14 mph, with gusts as high as 25 mph.

    High: 39 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 28. Light west wind increasing to 5 to 9 mph in the evening.

    Low: 28 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 14.

    Low: 14 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Tonight
Increasing clouds, with a low around 26. North wind 5 to 10 mph becoming east after midnight.
Tuesday
Rain, mainly after 10am. High near 44. Wind chill values between 25 and 35. East wind 9 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Tuesday Night
Rain, mainly before 7pm. Low around 27. Wind chill values between 15 and 20. Blustery, with a northwest wind 17 to 23 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Sunny, with a high near 39. Wind chill values between 20 and 30. Northwest wind 6 to 14 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 28. Light west wind increasing to 5 to 9 mph in the evening.
Thursday
Partly sunny, with a high near 41.
Thursday Night
Mostly clear, with a low around 14.
Friday
Mostly sunny, with a high near 33.
Friday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 22.
Saturday
A 40 percent chance of rain before 1pm. Partly sunny, with a high near 41.
Saturday Night
Partly cloudy, with a low around 27.
Sunday
Partly sunny, with a high near 39.
Sunday Night
Mostly cloudy, with a low around 19.
Monday
Mostly sunny, with a high near 32.
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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:
1:21 pm EST Dec 1, 2025
Forecast Valid:
6pm EST Dec 1, 2025-6pm EST Dec 8, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation