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

67°F

19°C

Humidity 79%
Wind Speed N 8 mph
Barometer 29.88 in (1011.7 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 14 Oct 8:56 pm EDT
Extended Forecast for

New London CT

  • Tonight

    Tonight: Mostly clear, with a low around 49. North wind 8 to 11 mph, with gusts as high as 21 mph.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 62. North wind 7 to 13 mph.

    High: 62 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after 2am. Increasing clouds, with a low around 48. Calm wind becoming southeast around 6 mph after midnight.

    Low: 48 °F

    Mostly Clear
    then Chance
    Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after 5pm. High near 69. Southeast wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 69 °F

    Showers

  • Friday Night

    Friday Night: Showers and thunderstorms. Low around 43. Southwest wind 9 to 13 mph becoming northwest after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 43 °F

    Showers

  • Saturday

    Saturday: A 30 percent chance of showers before 8am. Partly sunny, with a high near 54.

    High: 54 °F

    Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 49. North wind 8 to 11 mph, with gusts as high as 21 mph.
Thursday
Sunny, with a high near 62. North wind 7 to 13 mph.
Thursday Night
A 30 percent chance of showers after 2am. Increasing clouds, with a low around 48. Calm wind becoming southeast around 6 mph after midnight.
Friday
Showers, with thunderstorms also possible after 5pm. High near 69. Southeast wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and thunderstorms. Low around 43. Southwest wind 9 to 13 mph becoming northwest after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A 30 percent chance of showers before 8am. Partly sunny, with a high near 54.
Saturday Night
Mostly clear, with a low around 34.
Sunday
Sunny, with a high near 56.
Sunday Night
Mostly clear, with a low around 40.
Monday
Sunny, with a high near 60.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 64.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New London CT
 41.35°N 72.11°W (Elev. 98 ft)
Last Update:
7:37 pm EDT Oct 14, 2026
Forecast Valid:
9pm EDT Oct 14, 2026-6pm EDT Oct 21, 2026
 
Forecast Discussion
 
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Additional Resources

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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