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

40°F

4°C

Humidity 79%
Wind Speed W 8 mph
Barometer 30.08 in (1018.7 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 1 Dec 2:56 am EST
Extended Forecast for

Deep River Center CT

  • Overnight

    Overnight: Mostly clear, with a low around 31. West wind around 8 mph, with gusts as high as 20 mph.

    Low: 31 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 41. Wind chill values between 25 and 35. Northwest wind 6 to 11 mph, with gusts as high as 23 mph.

    High: 41 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 25. Calm wind.

    Low: 25 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Rain and snow, becoming all rain after 10am. High near 43. Calm wind becoming north 5 to 8 mph in the morning. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Rain/Snow
    then Rain

  • Tuesday Night

    Tuesday Night: Rain and snow likely before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 26. North wind around 8 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 26 °F

    Rain/Snow
    Likely

  • Wednesday

    Wednesday: Sunny, with a high near 40.

    High: 40 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 13.

    Low: 13 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 31. West wind around 8 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 41. Wind chill values between 25 and 35. Northwest wind 6 to 11 mph, with gusts as high as 23 mph.
Monday Night
Increasing clouds, with a low around 25. Calm wind.
Tuesday
Rain and snow, becoming all rain after 10am. High near 43. Calm wind becoming north 5 to 8 mph in the morning. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Tuesday Night
Rain and snow likely before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 26. North wind around 8 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Wednesday
Sunny, with a high near 40.
Wednesday Night
Partly cloudy, with a low around 27.
Thursday
Partly sunny, with a high near 41.
Thursday Night
Mostly clear, with a low around 13.
Friday
Mostly sunny, with a high near 34.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 24.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 40. Chance of precipitation is 50%.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 27.
Sunday
Partly sunny, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Deep River Center CT
 41.39°N 72.43°W (Elev. 49 ft)
Last Update:
1:19 am EST Dec 1, 2025
Forecast Valid:
3am EST Dec 1, 2025-6pm EST Dec 7, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation