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

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

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Light Rain

36°F

2°C

Humidity 93%
Wind Speed N 17 G 31 mph
Barometer 29.54 in (1000.3 mb)
Dewpoint 34°F (1°C)
Visibility 8.00 mi
Wind Chill26°F (-3°C)
Last update 2 Dec 6:56 pm EST
Extended Forecast for

Preston CT

  • Tonight

    Tonight: Rain, mainly before 11pm. Low around 29. Northwest wind around 10 mph, with gusts as high as 24 mph. Chance of precipitation is 100%.

    Low: 29 °F

    Rain then
    Slight Chance
    Rain

  • Wednesday

    Wednesday: Sunny, with a high near 41. Wind chill values between 20 and 30. Northwest wind 3 to 7 mph.

    High: 41 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 26. Calm wind becoming southwest around 5 mph after midnight.

    Low: 26 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 39. Wind chill values between 25 and 30. West wind 6 to 14 mph, with gusts as high as 25 mph.

    High: 39 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 12. Northwest wind 6 to 14 mph, with gusts as high as 29 mph.

    Low: 12 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: A chance of rain and snow before 1pm. Partly sunny, with a high near 39. Chance of precipitation is 30%.

    High: 39 °F

    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

Detailed Forecast

Tonight
Rain, mainly before 11pm. Low around 29. Northwest wind around 10 mph, with gusts as high as 24 mph. Chance of precipitation is 100%.
Wednesday
Sunny, with a high near 41. Wind chill values between 20 and 30. Northwest wind 3 to 7 mph.
Wednesday Night
Partly cloudy, with a low around 26. Calm wind becoming southwest around 5 mph after midnight.
Thursday
Partly sunny, with a high near 39. Wind chill values between 25 and 30. West wind 6 to 14 mph, with gusts as high as 25 mph.
Thursday Night
Mostly clear, with a low around 12. Northwest wind 6 to 14 mph, with gusts as high as 29 mph.
Friday
Mostly sunny, with a high near 31.
Friday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 20.
Saturday
A chance of rain and snow before 1pm. Partly sunny, with a high near 39. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 23.
Sunday
Mostly sunny, with a high near 38.
Sunday Night
Partly cloudy, with a low around 16.
Monday
Mostly sunny, with a high near 30.
Monday Night
Partly cloudy, with a low around 13.
Tuesday
Partly sunny, with a high near 32.
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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:
5:30 pm EST Dec 2, 2025
Forecast Valid:
7pm EST Dec 2, 2025-6pm EST Dec 9, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation