National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

74°F

23°C

Humidity 54%
Wind Speed SW 13 mph
Barometer 29.84 in (1010.5 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 21 Jun 11:56 am EDT
Extended Forecast for

Deep River Center CT

  • This Afternoon

    This Afternoon: A 20 percent chance of showers after 2pm. Mostly sunny, with a steady temperature around 79. West wind 6 to 8 mph.

    High: 79 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 60. Calm wind.

    Low: 60 °F

    Partly Cloudy

  • Monday

    Monday: Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly cloudy, with a high near 75. Calm wind becoming southeast 5 to 8 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 75 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 63. Southeast wind 5 to 7 mph becoming southwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 63 °F

    Showers

  • Tuesday

    Tuesday: A 50 percent chance of showers. Mostly cloudy, with a high near 78. North wind 3 to 6 mph.

    High: 78 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers after 2pm. Mostly sunny, with a steady temperature around 79. West wind 6 to 8 mph.
Tonight
Partly cloudy, with a low around 60. Calm wind.
Monday
Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly cloudy, with a high near 75. Calm wind becoming southeast 5 to 8 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and possibly a thunderstorm. Low around 63. Southeast wind 5 to 7 mph becoming southwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Tuesday
A 50 percent chance of showers. Mostly cloudy, with a high near 78. North wind 3 to 6 mph.
Tuesday Night
Partly cloudy, with a low around 61.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Sunny, with a high near 84.
Thursday Night
A 30 percent chance of showers after 2am. Partly cloudy, with a low around 63.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 81.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 64.
Saturday
Mostly sunny, with a high near 87.
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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:
2:19 am EDT Jun 21, 2026
Forecast Valid:
12pm EDT Jun 21, 2026-6pm EDT Jun 27, 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