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.

Overcast

36°F

2°C

Humidity 70%
Wind Speed Calm
Barometer 30.21 in (1022.8 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 19 Nov 7:56 am EST
Extended Forecast for

Groton / New London Airport CT

  • Today

    Today: A chance of rain and snow before 10am. Cloudy through mid morning, then gradual clearing, with a high near 46. Calm wind becoming north around 6 mph. Chance of precipitation is 30%.

    High: 46 °F

    Chance
    Rain/Snow
    then Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 30. North wind 3 to 5 mph.

    Low: 30 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Partly sunny, with a high near 46. North wind around 6 mph becoming light and variable in the afternoon.

    High: 46 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of rain after 1pm. Mostly cloudy, with a high near 51. Light southwest wind increasing to 8 to 13 mph in the morning.

    High: 51 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Friday Night

    Friday Night: A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: A 30 percent chance of rain before 1pm. Partly sunny, with a high near 49.

    High: 49 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

Detailed Forecast

Today
A chance of rain and snow before 10am. Cloudy through mid morning, then gradual clearing, with a high near 46. Calm wind becoming north around 6 mph. Chance of precipitation is 30%.
Tonight
Increasing clouds, with a low around 30. North wind 3 to 5 mph.
Thursday
Partly sunny, with a high near 46. North wind around 6 mph becoming light and variable in the afternoon.
Thursday Night
Partly cloudy, with a low around 32. Calm wind.
Friday
A 20 percent chance of rain after 1pm. Mostly cloudy, with a high near 51. Light southwest wind increasing to 8 to 13 mph in the morning.
Friday Night
A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 37.
Saturday
A 30 percent chance of rain before 1pm. Partly sunny, with a high near 49.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
Mostly sunny, with a high near 48.
Sunday Night
Partly cloudy, with a low around 36.
Monday
Mostly sunny, with a high near 51.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
Mostly sunny, with a high near 49.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Groton / New London Airport CT
 41.34°N 72.05°W (Elev. 49 ft)
Last Update:
5:50 am EST Nov 19, 2025
Forecast Valid:
8am EST Nov 19, 2025-6pm EST Nov 25, 2025
 
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