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

29°F

-2°C

Humidity 66%
Wind Speed NW 3 mph
Barometer 30.50 in (1032.9 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 29 Nov 11:56 pm EST
Extended Forecast for

Deep River Center CT

  • Overnight

    Overnight: Cloudy, with a temperature rising to around 31 by 5am. Calm wind.

    Low: 28 °F⇑

    Cloudy

  • Sunday

    Sunday: Rain, mainly after 1pm. High near 48. South wind 5 to 13 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 48 °F

    Slight Chance
    Rain then
    Rain

  • Sunday Night

    Sunday Night: A 30 percent chance of rain, mainly before 10pm. Cloudy during the early evening, then gradual clearing, with a low around 32. West wind around 8 mph, with gusts as high as 20 mph.

    Low: 32 °F

    Chance Rain

  • Monday

    Monday: Sunny, with a high near 42. Northwest wind 7 to 11 mph, with gusts as high as 22 mph.

    High: 42 °F

    Sunny

  • Monday Night

    Monday Night: A 40 percent chance of snow after 4am. Increasing clouds, with a low around 24. Calm wind.

    Low: 24 °F

    Partly Cloudy
    then Chance
    Snow

  • Tuesday

    Tuesday: A chance of rain and snow before 10am, then rain. High near 43. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Rain/Snow
    Likely then
    Rain

  • Tuesday Night

    Tuesday Night: Rain likely before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 60%.

    Low: 27 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Wednesday

    Wednesday: Sunny, with a high near 41.

    High: 41 °F

    Sunny

  • Wednesday Night

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

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Overnight
Cloudy, with a temperature rising to around 31 by 5am. Calm wind.
Sunday
Rain, mainly after 1pm. High near 48. South wind 5 to 13 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
A 30 percent chance of rain, mainly before 10pm. Cloudy during the early evening, then gradual clearing, with a low around 32. West wind around 8 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 42. Northwest wind 7 to 11 mph, with gusts as high as 22 mph.
Monday Night
A 40 percent chance of snow after 4am. Increasing clouds, with a low around 24. Calm wind.
Tuesday
A chance of rain and snow before 10am, then rain. High near 43. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Tuesday Night
Rain likely before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 60%.
Wednesday
Sunny, with a high near 41.
Wednesday Night
Partly cloudy, with a low around 27.
Thursday
Partly sunny, with a high near 42.
Thursday Night
Partly cloudy, with a low around 18.
Friday
Partly sunny, with a high near 36.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 23. Chance of precipitation is 30%.
Saturday
A 30 percent chance of rain. Partly sunny, with a high near 39.
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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:
5:44 pm EST Nov 29, 2025
Forecast Valid:
12am EST Nov 30, 2025-6pm EST Dec 6, 2025
 
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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