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

43°F

6°C

Humidity 35%
Wind Speed W 18 G 33 mph
Barometer 29.81 in (1009.5 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 28 Nov 12:56 pm EST
Extended Forecast for

Preston CT

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 42. Breezy, with a west wind around 21 mph, with gusts as high as 36 mph.

    High: 42 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 28. West wind 8 to 14 mph, with gusts as high as 31 mph.

    Low: 28 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 42. Wind chill values between 20 and 30. Northwest wind 6 to 11 mph.

    High: 42 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 25. Calm wind.

    Low: 25 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A slight chance of rain and snow showers before 10am, then rain showers likely. Cloudy, with a high near 51. Light southeast wind becoming south 8 to 13 mph in the morning. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 51 °F

    Slight Chance
    Rain/Snow
    then Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 31. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 31 °F

    Showers
    Likely

  • Monday

    Monday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain and snow before 1pm, then rain likely. Cloudy, with a high near 41. Chance of precipitation is 60%.

    High: 41 °F

    Chance
    Rain/Snow
    then
    Rain/Snow
    Likely

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 42. Breezy, with a west wind around 21 mph, with gusts as high as 36 mph.
Tonight
Mostly clear, with a low around 28. West wind 8 to 14 mph, with gusts as high as 31 mph.
Saturday
Sunny, with a high near 42. Wind chill values between 20 and 30. Northwest wind 6 to 11 mph.
Saturday Night
Increasing clouds, with a low around 25. Calm wind.
Sunday
A slight chance of rain and snow showers before 10am, then rain showers likely. Cloudy, with a high near 51. Light southeast wind becoming south 8 to 13 mph in the morning. Chance of precipitation is 70%. Little or no snow accumulation expected.
Sunday Night
Showers likely before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 31. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Mostly sunny, with a high near 42.
Monday Night
Mostly cloudy, with a low around 24.
Tuesday
A chance of rain and snow before 1pm, then rain likely. Cloudy, with a high near 41. Chance of precipitation is 60%.
Tuesday Night
A chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 26. Chance of precipitation is 50%.
Wednesday
Mostly sunny, with a high near 39.
Wednesday Night
Partly cloudy, with a low around 23.
Thursday
Mostly cloudy, with a high near 41.
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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:
1:12 am EST Nov 28, 2025
Forecast Valid:
1pm EST Nov 28, 2025-6pm EST Dec 4, 2025
 
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Additional Resources

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High Temperature

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Chance of Precipitation