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

45°F

7°C

Humidity 86%
Wind Speed Calm
Barometer 30.01 in (1016.0 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 26 Mar 6:56 am EDT
Extended Forecast for

New London CT

  • Today

    Today: A slight chance of rain before 8am, then a chance of showers after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 58. Southwest wind 10 to 14 mph. Chance of precipitation is 30%.

    High: 58 °F

    Chance
    Showers

  • Tonight

    Tonight: Showers likely, mainly after 11pm. Mostly cloudy, with a low around 45. Southwest wind 8 to 14 mph becoming west after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 45 °F

    Showers
    Likely

  • Friday

    Friday: A 50 percent chance of showers before 2pm. Mostly cloudy, with a steady temperature around 48. North wind around 9 mph.

    High: 48 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of rain before 2am. Mostly cloudy, with a low around 29. Light and variable wind.

    Low: 29 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 41. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 41 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 53.

    High: 53 °F

    Mostly Cloudy

Detailed Forecast

Today
A slight chance of rain before 8am, then a chance of showers after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 58. Southwest wind 10 to 14 mph. Chance of precipitation is 30%.
Tonight
Showers likely, mainly after 11pm. Mostly cloudy, with a low around 45. Southwest wind 8 to 14 mph becoming west after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A 50 percent chance of showers before 2pm. Mostly cloudy, with a steady temperature around 48. North wind around 9 mph.
Friday Night
A 20 percent chance of rain before 2am. Mostly cloudy, with a low around 29. Light and variable wind.
Saturday
Mostly sunny, with a high near 41. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Mostly sunny, with a high near 46.
Sunday Night
Mostly cloudy, with a low around 35.
Monday
Mostly cloudy, with a high near 53.
Monday Night
Mostly cloudy, with a low around 42.
Tuesday
A 40 percent chance of rain. Partly sunny, with a high near 54.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 39.
Wednesday
A 40 percent chance of rain. Mostly cloudy, with a high near 51.
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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:
5:42 am EDT Mar 26, 2026
Forecast Valid:
7am EDT Mar 26, 2026-6pm EDT Apr 1, 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