National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

28°F

-2°C

Humidity 56%
Wind Speed Calm
Barometer 30.54 in (1034.3 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Last update 29 Mar 1:56 am EDT
Extended Forecast for

New London CT

  • Overnight

    Overnight: Mostly clear, with a low around 25. Light west wind.

    Low: 25 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 47. Light southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph.

    High: 47 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 38. Southwest wind around 8 mph, with gusts as high as 20 mph.

    Low: 38 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of showers after 2pm. Partly sunny, with a high near 56. Southwest wind 9 to 14 mph, with gusts as high as 24 mph.

    High: 56 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers before 8pm, then a slight chance of showers after 2am. Mostly cloudy, with a low around 46. Southwest wind 5 to 7 mph. Chance of precipitation is 20%.

    Low: 46 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers between 8am and 2pm. Partly sunny, with a high near 62. Chance of precipitation is 30%.

    High: 62 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of showers after 2pm. Partly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Rain likely. Mostly cloudy, with a low around 42. Chance of precipitation is 70%.

    Low: 42 °F

    Rain Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 25. Light west wind.
Sunday
Sunny, with a high near 47. Light southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Sunday Night
Mostly cloudy, with a low around 38. Southwest wind around 8 mph, with gusts as high as 20 mph.
Monday
A 20 percent chance of showers after 2pm. Partly sunny, with a high near 56. Southwest wind 9 to 14 mph, with gusts as high as 24 mph.
Monday Night
A slight chance of showers before 8pm, then a slight chance of showers after 2am. Mostly cloudy, with a low around 46. Southwest wind 5 to 7 mph. Chance of precipitation is 20%.
Tuesday
A chance of showers between 8am and 2pm. Partly sunny, with a high near 62. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 50.
Wednesday
A 40 percent chance of showers after 2pm. Partly sunny, with a high near 67.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 42. Chance of precipitation is 70%.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 49.
Thursday Night
A 50 percent chance of rain. Cloudy, with a low around 37.
Friday
Rain likely. Cloudy, with a high near 48. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of rain. Cloudy, with a low around 39.
Saturday
A 40 percent chance of rain. 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:
2:25 am EDT Mar 29, 2026
Forecast Valid:
2am EDT Mar 29, 2026-6pm EDT Apr 4, 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