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.

Mostly Cloudy

60°F

16°C

Humidity 70%
Wind Speed NE 18 G 28 mph
Barometer 30.42 in (1030.0 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 24 Sep 9:56 am EDT
Extended Forecast for

Groton / New London Airport CT

  • Today

    Today: Mostly sunny, with a high near 65. Breezy, with a northeast wind 18 to 20 mph, with gusts as high as 31 mph.

    High: 65 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Mostly cloudy, with a low around 50. Northeast wind 15 to 17 mph, with gusts as high as 30 mph.

    Low: 50 °F

    Mostly Cloudy

  • Friday

    Friday: A 50 percent chance of showers, mainly after 2pm. Mostly cloudy, with a high near 63. Breezy, with a north wind 20 to 24 mph, with gusts as high as 38 mph.

    High: 63 °F

    Breezy.
    Slight Chance
    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: Showers, mainly after 8pm. Low around 52. Breezy, with a north wind 22 to 24 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 52 °F

    Showers and
    Breezy

  • Saturday

    Saturday: Showers. High near 61. Windy, with a north wind 25 to 28 mph, with gusts as high as 43 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 61 °F

    Showers and
    Windy

  • Saturday Night

    Saturday Night: Showers, with thunderstorms also possible after 2am. Low around 52. Breezy. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    Low: 52 °F

    Showers and
    Breezy

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 63. Breezy. Chance of precipitation is 80%.

    High: 63 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Showers likely, mainly before 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.

    Low: 54 °F

    Showers
    Likely

  • Monday

    Monday: A 30 percent chance of showers before 2pm. Mostly cloudy, with a high near 64.

    High: 64 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 65. Breezy, with a northeast wind 18 to 20 mph, with gusts as high as 31 mph.
Tonight
Mostly cloudy, with a low around 50. Northeast wind 15 to 17 mph, with gusts as high as 30 mph.
Friday
A 50 percent chance of showers, mainly after 2pm. Mostly cloudy, with a high near 63. Breezy, with a north wind 20 to 24 mph, with gusts as high as 38 mph.
Friday Night
Showers, mainly after 8pm. Low around 52. Breezy, with a north wind 22 to 24 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Showers. High near 61. Windy, with a north wind 25 to 28 mph, with gusts as high as 43 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night
Showers, with thunderstorms also possible after 2am. Low around 52. Breezy. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Sunday
Showers and possibly a thunderstorm. High near 63. Breezy. Chance of precipitation is 80%.
Sunday Night
Showers likely, mainly before 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Monday
A 30 percent chance of showers before 2pm. Mostly cloudy, with a high near 64.
Monday Night
Mostly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 67.
Tuesday Night
Partly cloudy, with a low around 53.
Wednesday
Mostly sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
Groton / New London Airport CT
 41.34°N 72.05°W (Elev. 49 ft)
Last Update:
3:06 am EDT Sep 24, 2026
Forecast Valid:
10am EDT Sep 24, 2026-6pm EDT Sep 30, 2026
 
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Additional Resources

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