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.

Partly Cloudy

42°F

6°C

Humidity 73%
Wind Speed SW 9 mph
Barometer 29.84 in (1010.5 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 6 Dec 1:56 pm EST
Extended Forecast for

Preston CT

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 39. Southwest wind around 6 mph.

    High: 39 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 23. Calm wind.

    Low: 23 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 41. Wind chill values between 25 and 35. Calm wind becoming north around 5 mph.

    High: 41 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 21. Wind chill values between 15 and 20. Calm wind becoming northwest 5 to 8 mph after midnight.

    Low: 21 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 28. North wind 10 to 14 mph.

    High: 28 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 10.

    Low: 10 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 37.

    High: 37 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of rain after 1pm. Mostly cloudy, with a high near 46.

    High: 46 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

This Afternoon
Partly sunny, with a high near 39. Southwest wind around 6 mph.
Tonight
Partly cloudy, with a low around 23. Calm wind.
Sunday
Partly sunny, with a high near 41. Wind chill values between 25 and 35. Calm wind becoming north around 5 mph.
Sunday Night
Partly cloudy, with a low around 21. Wind chill values between 15 and 20. Calm wind becoming northwest 5 to 8 mph after midnight.
Monday
Sunny, with a high near 28. North wind 10 to 14 mph.
Monday Night
Mostly clear, with a low around 10.
Tuesday
Increasing clouds, with a high near 37.
Tuesday Night
Mostly cloudy, with a low around 27.
Wednesday
A 40 percent chance of rain after 1pm. Mostly cloudy, with a high near 46.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 30.
Thursday
A 30 percent chance of rain. Partly sunny, with a high near 42.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.
Friday
A chance of rain and snow. Partly sunny, with a high near 39. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Preston CT
 41.53°N 72.01°W (Elev. 200 ft)
Last Update:
12:55 pm EST Dec 6, 2025
Forecast Valid:
2pm EST Dec 6, 2025-6pm EST Dec 12, 2025
 
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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