National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Overcast

44°F

7°C

Humidity 71%
Wind Speed S 12 mph
Barometer 30.16 in (1021.2 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 20 Apr 5:56 pm EDT
Extended Forecast for

Stonington CT

Freeze Warning April 21, 12:00am until April 21, 09:00am
Click here for hazard details and duration
Freeze Warning

  • Tonight

    Tonight: Partly cloudy, with a low around 31. North wind 7 to 9 mph.

    Low: 31 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 49. Wind chill values between 25 and 35 early. North wind 5 to 7 mph becoming light and variable.

    High: 49 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 36. South wind around 6 mph.

    Low: 36 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly between 8am and noon. Mostly cloudy, with a high near 49. South wind 7 to 9 mph.

    High: 49 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 40. Light northeast wind.

    Low: 40 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 31. North wind 7 to 9 mph.
Tuesday
Sunny, with a high near 49. Wind chill values between 25 and 35 early. North wind 5 to 7 mph becoming light and variable.
Tuesday Night
Increasing clouds, with a low around 36. South wind around 6 mph.
Wednesday
A 30 percent chance of showers, mainly between 8am and noon. Mostly cloudy, with a high near 49. South wind 7 to 9 mph.
Wednesday Night
Mostly cloudy, with a low around 40. Light northeast wind.
Thursday
Mostly sunny, with a high near 59.
Thursday Night
Partly cloudy, with a low around 41.
Friday
Mostly sunny, with a high near 57.
Friday Night
Partly cloudy, with a low around 41.
Saturday
A 40 percent chance of showers after 8am. Partly sunny, with a high near 52.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 41.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 54.
Sunday Night
Mostly cloudy, with a low around 41.
Monday
Mostly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Stonington CT
 41.35°N 71.93°W (Elev. 3 ft)
Last Update:
3:44 pm EDT Apr 20, 2026
Forecast Valid:
6pm EDT Apr 20, 2026-6pm EDT Apr 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation