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

43°F

6°C

Humidity 80%
Wind Speed SW 9 mph
Barometer 29.86 in (1010.9 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 20 Mar 6:56 pm EDT
Extended Forecast for

New London CT

  • Tonight

    Tonight: Showers, mainly before 3am. Patchy fog after 2am. Steady temperature around 44. South wind 7 to 14 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 44 °F

    Showers and
    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 54. Northwest wind 7 to 10 mph.

    High: 54 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 36. Light and variable wind.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of rain, mainly after 2pm. Mostly cloudy, with a high near 52. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 52 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly after 8pm. Mostly cloudy, with a low around 36. Light and variable wind becoming northwest around 5 mph after midnight. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 36 °F

    Rain Likely

  • Monday

    Monday: A 40 percent chance of rain before 2pm. Mostly cloudy, with a high near 45.

    High: 45 °F

    Chance Rain

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 44.

    High: 44 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Showers, mainly before 3am. Patchy fog after 2am. Steady temperature around 44. South wind 7 to 14 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 54. Northwest wind 7 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 36. Light and variable wind.
Sunday
A 30 percent chance of rain, mainly after 2pm. Mostly cloudy, with a high near 52. South wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Rain likely, mainly after 8pm. Mostly cloudy, with a low around 36. Light and variable wind becoming northwest around 5 mph after midnight. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A 40 percent chance of rain before 2pm. Mostly cloudy, with a high near 45.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Sunny, with a high near 44.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
A chance of rain between 8am and 2pm. Partly sunny, with a high near 47. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 29.
Thursday
Mostly sunny, with a high near 49.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 34.
Friday
A 40 percent chance of rain. Partly sunny, with a high near 49.
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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:
3:15 pm EDT Mar 20, 2026
Forecast Valid:
7pm EDT Mar 20, 2026-6pm EDT Mar 27, 2026
 
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Additional Resources

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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