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

38°F

3°C

Humidity 89%
Wind Speed W 3 mph
Barometer 30.25 in (1024.4 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 4 Mar 5:56 pm EST
Extended Forecast for

2 Miles SSE Preston CT

  • Tonight

    Tonight: Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Patchy Fog

  • Thursday

    Thursday: Rain likely, mainly after 1pm. Areas of fog before 1pm. Otherwise, cloudy, with a high near 43. Calm wind becoming northeast 5 to 7 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 43 °F

    Rain Likely
    and Areas Fog

  • Thursday Night

    Thursday Night: Rain. Low around 32. Northeast wind around 8 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    Low: 32 °F

    Rain

  • Friday

    Friday: A 50 percent chance of rain before 1pm. Cloudy, with a high near 40. Northeast wind 7 to 9 mph.

    High: 40 °F

    Chance Rain

  • Friday Night

    Friday Night: Cloudy, with a low around 32. Light northeast wind.

    Low: 32 °F

    Cloudy

  • Saturday

    Saturday: Cloudy, with a high near 51.

    High: 51 °F

    Cloudy

  • Saturday Night

    Saturday Night: A 50 percent chance of showers. Cloudy, with a low around 40.

    Low: 40 °F

    Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 24. Calm wind.
Thursday
Rain likely, mainly after 1pm. Areas of fog before 1pm. Otherwise, cloudy, with a high near 43. Calm wind becoming northeast 5 to 7 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain. Low around 32. Northeast wind around 8 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Friday
A 50 percent chance of rain before 1pm. Cloudy, with a high near 40. Northeast wind 7 to 9 mph.
Friday Night
Cloudy, with a low around 32. Light northeast wind.
Saturday
Cloudy, with a high near 51.
Saturday Night
A 50 percent chance of showers. Cloudy, with a low around 40.
Sunday
Partly sunny, with a high near 55.
Sunday Night
Partly cloudy, with a low around 34.
Monday
Sunny, with a high near 58.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Mostly sunny, with a high near 62.
Tuesday Night
Mostly cloudy, with a low around 45.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Preston CT
 41.53°N 71.98°W (Elev. 200 ft)
Last Update:
4:45 pm EST Mar 4, 2026
Forecast Valid:
6pm EST Mar 4, 2026-6pm EDT Mar 11, 2026
 
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