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.

Fog/Mist

68°F

20°C

Humidity 96%
Wind Speed SE 6 mph
Barometer 29.83 in (1010.2 mb)
Dewpoint 67°F (19°C)
Visibility 1.00 mi
Last update 23 Jun 6:56 am EDT
Extended Forecast for

New London CT

  • Today

    Today: Showers and possibly a thunderstorm. High near 71. South wind around 8 mph becoming northwest in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 71 °F

    Showers

  • Tonight

    Tonight: Showers likely, mainly before 11pm. Cloudy during the early evening, then gradual clearing, with a low around 58. North wind 5 to 7 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 58 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 80. West wind around 9 mph.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. West wind 3 to 6 mph.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 77. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after 2am. Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers. Mostly cloudy, with a high near 76.

    High: 76 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 64.

    Low: 64 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers likely, mainly before 2pm. Partly sunny, with a high near 71. Chance of precipitation is 60%.

    High: 71 °F

    Showers
    Likely

Detailed Forecast

Today
Showers and possibly a thunderstorm. High near 71. South wind around 8 mph becoming northwest in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers likely, mainly before 11pm. Cloudy during the early evening, then gradual clearing, with a low around 58. North wind 5 to 7 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Sunny, with a high near 80. West wind around 9 mph.
Wednesday Night
Mostly clear, with a low around 59. West wind 3 to 6 mph.
Thursday
Sunny, with a high near 77. Calm wind becoming south 5 to 8 mph in the afternoon.
Thursday Night
A 30 percent chance of showers after 2am. Partly cloudy, with a low around 64.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 76.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 64.
Saturday
Showers likely, mainly before 2pm. Partly sunny, with a high near 71. Chance of precipitation is 60%.
Saturday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 64.
Sunday
Mostly sunny, with a high near 74.
Sunday Night
Mostly clear, with a low around 64.
Monday
Mostly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New London CT
 41.34°N 72.08°W (Elev. 36 ft)
Last Update:
7:07 am EDT Jun 23, 2026
Forecast Valid:
7am EDT Jun 23, 2026-6pm EDT Jun 29, 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