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

36°F

2°C

Humidity 59%
Wind Speed W 9 mph
Barometer 29.98 in (1015.1 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 7 Dec 11:56 pm EST
Extended Forecast for

Groton / New London Airport CT

  • Overnight

    Overnight: Mostly clear, with a low around 21. Wind chill values between 15 and 20. West wind 10 to 14 mph.

    Low: 21 °F

    Mostly Clear

  • 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 31 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. Wind chill values between 15 and 25. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 39 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A chance of rain before 1am, then a slight chance of snow. Mostly cloudy, with a low around 30. Southwest wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    Low: 30 °F

    Chance Rain
    then Chance
    Rain/Snow

  • 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. Cloudy, then gradually becoming partly 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

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 21. Wind chill values between 15 and 20. West wind 10 to 14 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 31 mph.
Monday Night
Partly cloudy, with a low around 12. North wind 5 to 8 mph.
Tuesday
Increasing clouds, with a high near 39. Wind chill values between 15 and 25. Light and variable wind becoming south 5 to 10 mph in the morning.
Tuesday Night
A chance of rain before 1am, then a slight chance of snow. Mostly cloudy, with a low around 30. Southwest wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 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. Cloudy, then gradually becoming partly 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 snow before 1pm, then 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.
Saturday Night
Partly cloudy, with a low around 18.
Sunday
Mostly sunny, with a high near 31.
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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:
5:39 pm EST Dec 7, 2025
Forecast Valid:
12am EST Dec 8, 2025-6pm EST Dec 14, 2025
 
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Additional Resources

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