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

59°F

15°C

Humidity 78%
Wind Speed S 5 mph
Barometer 29.90 in (1012.3 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 15 Apr 9:56 pm EDT
Extended Forecast for

New London CT

  • Tonight

    Tonight: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 54. Calm wind. Chance of precipitation is 50%.

    Low: 54 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 76. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 76 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 54. South wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 72. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 50%.

    High: 72 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers, mainly before 8pm. Mostly cloudy, with a low around 49. Light northeast wind.

    Low: 49 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers likely after 8am. Cloudy, with a high near 57. Chance of precipitation is 60%.

    High: 57 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Chance
    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 54. Calm wind. Chance of precipitation is 50%.
Thursday
Mostly sunny, with a high near 76. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 54. South wind around 5 mph becoming calm in the evening.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 72. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 50%.
Friday Night
A 30 percent chance of showers, mainly before 8pm. Mostly cloudy, with a low around 49. Light northeast wind.
Saturday
Partly sunny, with a high near 61.
Saturday Night
Mostly cloudy, with a low around 46.
Sunday
Showers likely after 8am. Cloudy, with a high near 57. Chance of precipitation is 60%.
Sunday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 35.
Monday
Mostly sunny, with a high near 48.
Monday Night
Mostly clear, with a low around 31.
Tuesday
Sunny, with a high near 51.
Tuesday Night
Partly cloudy, with a low around 41.
Wednesday
Partly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New London CT
 41.37°N 72.11°W (Elev. 125 ft)
Last Update:
7:26 pm EDT Apr 15, 2026
Forecast Valid:
10pm EDT Apr 15, 2026-6pm EDT Apr 22, 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