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.

Mostly Cloudy

32°F

0°C

Humidity 61%
Wind Speed SW 13 G 21 mph
Barometer 30.06 in (1017.7 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 9 Dec 6:56 pm EST
Extended Forecast for

Groton CTSimilar City Names

  • Tonight

    Tonight: A slight chance of snow before 11pm, then a slight chance of rain between 11pm and 1am. Mostly cloudy, with a temperature rising to around 41 by midnight. Southwest wind 10 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    Low: 33 °F⇑

    Slight Chance
    Rain/Snow
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: Rain likely after 1pm. Mostly cloudy, with a high near 48. Breezy, with a southwest wind 15 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 48 °F

    Breezy.
    Partly Sunny
    then Rain
    Likely

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 32. Breezy, with a southwest wind 16 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 60%.

    Low: 32 °F

    Rain Likely
    and Breezy

  • Thursday

    Thursday: Mostly sunny, with a high near 37. Wind chill values between 20 and 25. Breezy, with a west wind 18 to 21 mph, with gusts as high as 33 mph.

    High: 37 °F

    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 24. Breezy, with a west wind 17 to 22 mph, with gusts as high as 34 mph.

    Low: 24 °F

    Mostly Clear
    and Breezy

  • Friday

    Friday: Sunny, with a high near 37.

    High: 37 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 41.

    High: 41 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Tonight
A slight chance of snow before 11pm, then a slight chance of rain between 11pm and 1am. Mostly cloudy, with a temperature rising to around 41 by midnight. Southwest wind 10 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Wednesday
Rain likely after 1pm. Mostly cloudy, with a high near 48. Breezy, with a southwest wind 15 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 32. Breezy, with a southwest wind 16 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 60%.
Thursday
Mostly sunny, with a high near 37. Wind chill values between 20 and 25. Breezy, with a west wind 18 to 21 mph, with gusts as high as 33 mph.
Thursday Night
Mostly clear, with a low around 24. Breezy, with a west wind 17 to 22 mph, with gusts as high as 34 mph.
Friday
Sunny, with a high near 37.
Friday Night
Mostly cloudy, with a low around 29.
Saturday
Mostly cloudy, with a high near 41.
Saturday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 31.
Sunday
A chance of rain and snow before 3pm, then a chance of snow. Mostly cloudy, with a high near 38. Breezy. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 20. Blustery.
Monday
Sunny, with a high near 30. Blustery.
Monday Night
Mostly cloudy, with a low around 23.
Tuesday
Mostly sunny, with a high near 34.
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ABOUT THIS FORECAST

 
Point Forecast:
Groton CTSimilar City Names
 41.32°N 72.09°W (Elev. 3 ft)
Last Update:
5:42 pm EST Dec 9, 2025
Forecast Valid:
7pm EST Dec 9, 2025-6pm EST Dec 16, 2025
 
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