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

71°F

22°C

Humidity 87%
Wind Speed S 9 mph
Barometer 29.95 in (1014.1 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 17 Aug 1:56 am EDT
Extended Forecast for

Deep River Center CT

  • Overnight

    Overnight: Showers likely. Cloudy, with a low around 65. South wind around 8 mph. Chance of precipitation is 60%.

    Low: 65 °F

    Showers
    Likely

  • Monday

    Monday: Showers likely, mainly before 11am. Mostly cloudy, with a high near 79. Southeast wind 5 to 8 mph becoming northeast in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 79 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 85. Light west wind.

    High: 85 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 2am. Partly cloudy, with a low around 61.

    Low: 61 °F

    Chance
    Showers

Detailed Forecast

Overnight
Showers likely. Cloudy, with a low around 65. South wind around 8 mph. Chance of precipitation is 60%.
Monday
Showers likely, mainly before 11am. Mostly cloudy, with a high near 79. Southeast wind 5 to 8 mph becoming northeast in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Mostly cloudy, with a low around 67. Calm wind.
Tuesday
Mostly sunny, with a high near 85. Light west wind.
Tuesday Night
Mostly clear, with a low around 64. Calm wind.
Wednesday
Sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 66.
Thursday
A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 83.
Thursday Night
A 30 percent chance of showers before 2am. Partly cloudy, with a low around 61.
Friday
Mostly sunny, with a high near 81.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 62.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 78.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 62.
Sunday
A 50 percent chance of showers. Partly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Deep River Center CT
 41.37°N 72.46°W (Elev. 184 ft)
Last Update:
2:20 am EDT Aug 17, 2026
Forecast Valid:
2am EDT Aug 17, 2026-6pm EDT Aug 23, 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