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

15°F

-9°C

Humidity 77%
Wind Speed N 5 mph
Barometer 30.66 in (1038.0 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill7°F (-14°C)
Last update 3 Mar 1:56 am EST
Extended Forecast for

New London CT

  • Overnight

    Overnight: Clear early, then becoming mostly cloudy, with a steady temperature around 18. Calm wind.

    Low: 18 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Rain, possibly mixed with snow, becoming all rain after 3pm. High near 38. Wind chill values between 15 and 25. Calm wind becoming southeast 5 to 8 mph in the morning. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Chance Snow
    then
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain, mainly before 4am. Low around 33. Calm wind becoming southwest around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 33 °F

    Rain

  • Wednesday

    Wednesday: Mostly sunny, with a high near 49. Light and variable wind.

    High: 49 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain between 1am and 4am, then a slight chance of freezing rain after 4am. Mostly cloudy, with a low around 30. Calm wind. Chance of precipitation is 20%.

    Low: 30 °F

    Partly Cloudy
    then Slight
    Chance
    Rain/Freezing
    Rain

  • Thursday

    Thursday: A 40 percent chance of rain after 7am. Cloudy, with a high near 45.

    High: 45 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain likely. Cloudy, with a low around 35. Chance of precipitation is 60%.

    Low: 35 °F

    Rain Likely

  • Friday

    Friday: A 50 percent chance of rain before 1pm. Mostly cloudy, with a high near 43.

    High: 43 °F

    Chance Rain

  • Friday Night

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

    Low: 33 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Clear early, then becoming mostly cloudy, with a steady temperature around 18. Calm wind.
Tuesday
Rain, possibly mixed with snow, becoming all rain after 3pm. High near 38. Wind chill values between 15 and 25. Calm wind becoming southeast 5 to 8 mph in the morning. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Tuesday Night
Rain, mainly before 4am. Low around 33. Calm wind becoming southwest around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday
Mostly sunny, with a high near 49. Light and variable wind.
Wednesday Night
A slight chance of rain between 1am and 4am, then a slight chance of freezing rain after 4am. Mostly cloudy, with a low around 30. Calm wind. Chance of precipitation is 20%.
Thursday
A 40 percent chance of rain after 7am. Cloudy, with a high near 45.
Thursday Night
Rain likely. Cloudy, with a low around 35. Chance of precipitation is 60%.
Friday
A 50 percent chance of rain before 1pm. Mostly cloudy, with a high near 43.
Friday Night
Mostly cloudy, with a low around 33.
Saturday
Cloudy, with a high near 51.
Saturday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 43.
Sunday
Mostly cloudy, with a high near 57.
Sunday Night
Partly cloudy, with a low around 40.
Monday
Partly sunny, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
New London CT
 41.37°N 72.11°W (Elev. 125 ft)
Last Update:
12:43 am EST Mar 3, 2026
Forecast Valid:
2am EST Mar 3, 2026-6pm EDT Mar 9, 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