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

41°F

5°C

Humidity 49%
Wind Speed S 8 mph
Barometer 30.04 in (1017.2 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 7 Dec 12:56 pm EST
Extended Forecast for

Groton / New London Airport CT

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 40. Southwest wind around 6 mph.

    High: 40 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 21. Wind chill values between 15 and 20. West wind 7 to 13 mph, with gusts as high as 28 mph.

    Low: 21 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 28. Wind chill values between 10 and 15. North wind 11 to 16 mph, with gusts as high as 32 mph.

    High: 28 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 12. North wind 5 to 8 mph.

    Low: 12 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 39. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 39 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 30.

    Low: 30 °F

    Chance Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain. Mostly cloudy, with a high near 47.

    High: 47 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain

  • Thursday

    Thursday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 40. Southwest wind around 6 mph.
Tonight
Partly cloudy, with a low around 21. Wind chill values between 15 and 20. West wind 7 to 13 mph, with gusts as high as 28 mph.
Monday
Mostly sunny, with a high near 28. Wind chill values between 10 and 15. North wind 11 to 16 mph, with gusts as high as 32 mph.
Monday Night
Partly cloudy, with a low around 12. North wind 5 to 8 mph.
Tuesday
Increasing clouds, with a high near 39. Light and variable wind becoming south 5 to 10 mph in the morning.
Tuesday Night
A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 30.
Wednesday
A 50 percent chance of rain. Mostly cloudy, with a high near 47.
Wednesday Night
A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 32.
Thursday
Mostly sunny, with a high near 41.
Thursday Night
Mostly cloudy, with a low around 24.
Friday
A chance of rain and snow. Partly sunny, with a high near 36. Chance of precipitation is 30%.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 22.
Saturday
A 30 percent chance of snow. Partly sunny, with a high near 34.
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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:
12:47 pm EST Dec 7, 2025
Forecast Valid:
1pm EST Dec 7, 2025-6pm EST Dec 13, 2025
 
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Additional Resources

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Chance of Precipitation