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

42°F

6°C

Humidity 76%
Wind Speed N 8 mph
Barometer 30.28 in (1025.2 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 4 Mar 9:56 am EST
Extended Forecast for

New London CT

  • Today

    Today: Mostly sunny, with a high near 48. Calm wind.

    High: 48 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of freezing rain after 4am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 28. Calm wind. Chance of precipitation is 20%.

    Low: 28 °F

    Patchy Fog
    then Slight
    Chance
    Freezing Rain
    and Patchy
    Fog

  • Thursday

    Thursday: A chance of rain or freezing rain before 7am, then rain likely. Patchy fog before 10am. Otherwise, cloudy, with a high near 42. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 60%. Little or no ice accumulation expected.

    High: 42 °F

    Chance
    Rain/Freezing
    Rain and
    Patchy Fog
    then Rain
    Likely

  • Thursday Night

    Thursday Night: Rain. Low around 34. Northeast wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 34 °F

    Rain

  • Friday

    Friday: A 40 percent chance of rain before 1pm. Mostly cloudy, with a high near 41. Northeast wind 6 to 9 mph, with gusts as high as 20 mph.

    High: 41 °F

    Chance Rain

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Saturday

    Saturday: Cloudy, with a high near 51.

    High: 51 °F

    Cloudy

  • Saturday Night

    Saturday Night: A 50 percent chance of showers before 1am. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 48. Calm wind.
Tonight
A slight chance of freezing rain after 4am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 28. Calm wind. Chance of precipitation is 20%.
Thursday
A chance of rain or freezing rain before 7am, then rain likely. Patchy fog before 10am. Otherwise, cloudy, with a high near 42. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 60%. Little or no ice accumulation expected.
Thursday Night
Rain. Low around 34. Northeast wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
A 40 percent chance of rain before 1pm. Mostly cloudy, with a high near 41. Northeast wind 6 to 9 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 33.
Saturday
Cloudy, with a high near 51.
Saturday Night
A 50 percent chance of showers before 1am. Mostly cloudy, with a low around 41.
Sunday
Partly sunny, with a high near 54.
Sunday Night
Partly cloudy, with a low around 37.
Monday
Sunny, with a high near 57.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Mostly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New London CT
 41.37°N 72.11°W (Elev. 125 ft)
Last Update:
6:26 am EST Mar 4, 2026
Forecast Valid:
10am EST Mar 4, 2026-6pm EDT Mar 10, 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