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.

Overcast

73°F

23°C

Humidity 84%
Wind Speed SW 15 mph
Barometer 30.02 in (1016.6 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 9 Sep 8:56 pm EDT
Extended Forecast for

Deep River Center CT

  • Tonight

    Tonight: A 30 percent chance of showers after 5am. Mostly cloudy, with a low around 72. Southwest wind 11 to 13 mph, with gusts as high as 23 mph.

    Low: 72 °F

    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers, mainly before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 87. Southwest wind 9 to 11 mph, with gusts as high as 23 mph.

    High: 87 °F

    Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 60. Light northwest wind.

    Low: 60 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly cloudy through mid morning, then gradual clearing, with a high near 77. Northwest wind around 6 mph.

    High: 77 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 53. Calm wind.

    Low: 53 °F

    Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A 50 percent chance of showers. Mostly cloudy, with a high near 78.

    High: 78 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 63.

    Low: 63 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of showers after 5am. Mostly cloudy, with a low around 72. Southwest wind 11 to 13 mph, with gusts as high as 23 mph.
Thursday
A 30 percent chance of showers, mainly before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 87. Southwest wind 9 to 11 mph, with gusts as high as 23 mph.
Thursday Night
Increasing clouds, with a low around 60. Light northwest wind.
Friday
Mostly cloudy through mid morning, then gradual clearing, with a high near 77. Northwest wind around 6 mph.
Friday Night
Clear, with a low around 53. Calm wind.
Saturday
Mostly sunny, with a high near 75.
Saturday Night
A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 63.
Sunday
A 50 percent chance of showers. Mostly cloudy, with a high near 78.
Sunday Night
Mostly cloudy, with a low around 63.
Monday
Mostly sunny, with a high near 80.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 65.
Wednesday
Mostly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Deep River Center CT
 41.39°N 72.43°W (Elev. 49 ft)
Last Update:
8:13 pm EDT Sep 9, 2026
Forecast Valid:
9pm EDT Sep 9, 2026-6pm EDT Sep 16, 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