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.

Mostly Cloudy

34°F

1°C

Humidity 54%
Wind Speed NW 17 G 26 mph
Barometer 30.05 in (1017.5 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 4 Dec 5:56 pm EST
Extended Forecast for

Preston CT

  • Tonight

    Tonight: Mostly clear, with a low around 11. Northwest wind 10 to 15 mph becoming light north after midnight. Winds could gust as high as 28 mph.

    Low: 11 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 30. Wind chill values between 10 and 20. Calm wind becoming south around 6 mph in the afternoon.

    High: 30 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of snow after 1am. Increasing clouds, with a low around 21. Calm wind.

    Low: 21 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday

    Saturday: A 20 percent chance of rain before 1pm. Mostly cloudy, with a high near 41. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 41 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 23. Light northwest wind.

    Low: 23 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 11.

    Low: 11 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 11. Northwest wind 10 to 15 mph becoming light north after midnight. Winds could gust as high as 28 mph.
Friday
Sunny, with a high near 30. Wind chill values between 10 and 20. Calm wind becoming south around 6 mph in the afternoon.
Friday Night
A 20 percent chance of snow after 1am. Increasing clouds, with a low around 21. Calm wind.
Saturday
A 20 percent chance of rain before 1pm. Mostly cloudy, with a high near 41. Calm wind becoming southwest around 6 mph in the afternoon.
Saturday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 23. Light northwest wind.
Sunday
Partly sunny, with a high near 41.
Sunday Night
Mostly cloudy, with a low around 22.
Monday
Mostly sunny, with a high near 32.
Monday Night
Mostly clear, with a low around 11.
Tuesday
Partly sunny, with a high near 36.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 26. Chance of precipitation is 40%.
Wednesday
Mostly cloudy, with a high near 42.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 30.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 43.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Preston CT
 41.53°N 72.01°W (Elev. 200 ft)
Last Update:
2:14 pm EST Dec 4, 2025
Forecast Valid:
6pm EST Dec 4, 2025-6pm EST Dec 11, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation