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

63°F

17°C

Humidity 100%
Wind Speed S 5 mph
Barometer 30.26 in (1024.6 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 5 Oct 6:56 pm EDT
Extended Forecast for

Stonington CT

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, increasing clouds, with a low around 56. South wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Mostly Clear
    then Patchy
    Fog

  • Monday

    Monday: Sunny, with a high near 75. Southwest wind 5 to 10 mph.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. Southwest wind around 7 mph.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74. Southwest wind 7 to 13 mph.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Showers, mainly after 2am. Low around 59. Southwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 59 °F

    Slight Chance
    Showers then
    Showers

  • Wednesday

    Wednesday: Showers. High near 67. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    High: 67 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 44. Chance of precipitation is 60%.

    Low: 44 °F

    Showers
    Likely then
    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, increasing clouds, with a low around 56. South wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 75. Southwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 57. Southwest wind around 7 mph.
Tuesday
Sunny, with a high near 74. Southwest wind 7 to 13 mph.
Tuesday Night
Showers, mainly after 2am. Low around 59. Southwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Showers. High near 67. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Wednesday Night
Showers likely before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 44. Chance of precipitation is 60%.
Thursday
Sunny, with a high near 60.
Thursday Night
Mostly clear, with a low around 42.
Friday
Sunny, with a high near 61.
Friday Night
Partly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
Partly cloudy, with a low around 48.
Sunday
Mostly sunny, with a high near 64.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Stonington CT
 41.35°N 71.93°W (Elev. 3 ft)
Last Update:
2:01 pm EDT Oct 5, 2025
Forecast Valid:
7pm EDT Oct 5, 2025-6pm EDT Oct 12, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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