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

27°F

-3°C

Humidity 41%
Wind Speed SW 8 mph
Barometer 30.18 in (1022.0 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 9 Dec 12:56 pm EST
Extended Forecast for

Stonington CT

  • This Afternoon

    This Afternoon: Sunny early, then becoming mostly cloudy, with a steady temperature around 31. Wind chill values between 20 and 25. Southwest wind around 6 mph.

    High: 31 °F

    Mostly Cloudy

  • Tonight

    Tonight: A slight chance of rain between 10pm and 4am. Mostly cloudy, with a temperature rising to around 37 by midnight. Wind chill values between 20 and 25. Southwest wind 8 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    Low: 30 °F⇑

    Slight Chance
    Rain

  • Wednesday

    Wednesday: Rain likely after 1pm. Mostly cloudy, with a high near 49. Southwest wind 13 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Partly Sunny
    then Rain
    Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 31. Southwest wind 10 to 16 mph, with gusts as high as 29 mph.

    Low: 31 °F

    Chance Rain

  • Thursday

    Thursday: Mostly sunny, with a high near 39. West wind 10 to 16 mph, with gusts as high as 28 mph.

    High: 39 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 37.

    High: 37 °F

    Sunny

  • Friday Night

    Friday Night: A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny early, then becoming mostly cloudy, with a steady temperature around 31. Wind chill values between 20 and 25. Southwest wind around 6 mph.
Tonight
A slight chance of rain between 10pm and 4am. Mostly cloudy, with a temperature rising to around 37 by midnight. Wind chill values between 20 and 25. Southwest wind 8 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Wednesday
Rain likely after 1pm. Mostly cloudy, with a high near 49. Southwest wind 13 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 31. Southwest wind 10 to 16 mph, with gusts as high as 29 mph.
Thursday
Mostly sunny, with a high near 39. West wind 10 to 16 mph, with gusts as high as 28 mph.
Thursday Night
Partly cloudy, with a low around 25.
Friday
Sunny, with a high near 37.
Friday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 27.
Saturday
Partly sunny, with a high near 40.
Saturday Night
Mostly cloudy, with a low around 25.
Sunday
A 30 percent chance of snow. Partly sunny, with a high near 34.
Sunday Night
Mostly clear, with a low around 16.
Monday
Sunny, with a high near 29.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Stonington CT
 41.35°N 71.93°W (Elev. 3 ft)
Last Update:
1:10 pm EST Dec 9, 2025
Forecast Valid:
1pm EST Dec 9, 2025-6pm EST Dec 15, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation