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

26°F

-3°C

Humidity 92%
Wind Speed Calm
Barometer 29.97 in (1014.9 mb)
Dewpoint 24°F (-4°C)
Visibility 9.00 mi
Last update 7 Dec 12:56 am EST
Extended Forecast for

2 Miles NNE Deep River CT

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 28. Calm wind.

    Low: 28 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 40. Light and variable wind.

    High: 40 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 22. Wind chill values between 15 and 20. Light west wind becoming northwest 6 to 11 mph after midnight. Winds could gust as high as 24 mph.

    Low: 22 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 29. Wind chill values between 10 and 20. North wind 9 to 16 mph, with gusts as high as 30 mph.

    High: 29 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 12. North wind around 5 mph becoming calm in the evening.

    Low: 12 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 38.

    High: 38 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of rain. Mostly cloudy, with a high near 46.

    High: 46 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 33.

    Low: 33 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 28. Calm wind.
Sunday
Increasing clouds, with a high near 40. Light and variable wind.
Sunday Night
Partly cloudy, with a low around 22. Wind chill values between 15 and 20. Light west wind becoming northwest 6 to 11 mph after midnight. Winds could gust as high as 24 mph.
Monday
Mostly sunny, with a high near 29. Wind chill values between 10 and 20. North wind 9 to 16 mph, with gusts as high as 30 mph.
Monday Night
Partly cloudy, with a low around 12. North wind around 5 mph becoming calm in the evening.
Tuesday
Increasing clouds, with a high near 38.
Tuesday Night
Mostly cloudy, with a low around 29.
Wednesday
A 50 percent chance of rain. Mostly cloudy, with a high near 46.
Wednesday Night
A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 33.
Thursday
Partly sunny, with a high near 43.
Thursday Night
Mostly cloudy, with a low around 27.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 39. Chance of precipitation is 40%.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 22.
Saturday
A 30 percent chance of snow. Partly sunny, with a high near 33.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Deep River CT
 41.43°N 72.42°W (Elev. 98 ft)
Last Update:
12:50 am EST Dec 7, 2025
Forecast Valid:
1am EST Dec 7, 2025-6pm EST Dec 13, 2025
 
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