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.

Fog/Mist

72°F

22°C

Humidity 94%
Wind Speed S 5 mph
Barometer 29.89 in (1012.1 mb)
Dewpoint 70°F (21°C)
Visibility 4.00 mi
Last update 18 Jun 3:56 pm EDT
Extended Forecast for

New London CT

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 73. Southeast wind around 6 mph.

    High: 73 °F

    Chance
    Showers

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 11pm. Cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Juneteenth

    Juneteenth: Partly sunny, with a high near 84. Light southwest wind increasing to 5 to 9 mph in the morning.

    High: 84 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 67. Southwest wind 7 to 11 mph.

    Low: 67 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 83. West wind 11 to 13 mph.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 83.

    High: 83 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 73. Southeast wind around 6 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before 11pm. Cloudy, with a low around 66. Calm wind.
Juneteenth
Partly sunny, with a high near 84. Light southwest wind increasing to 5 to 9 mph in the morning.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 67. Southwest wind 7 to 11 mph.
Friday
Sunny, with a high near 83. West wind 11 to 13 mph.
Friday Night
Mostly clear, with a low around 63.
Saturday
Mostly sunny, with a high near 84.
Saturday Night
Mostly cloudy, with a low around 66.
Sunday
Partly sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 67.
Monday
Mostly sunny, with a high near 88.
Monday Night
Partly cloudy, with a low around 69.
Tuesday
Sunny, with a high near 91.
Tuesday Night
Mostly clear, with a low around 72.
Wednesday
Sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New London CT
 41.35°N 72.11°W (Elev. 98 ft)
Last Update:
3:37 pm EDT Jun 18, 2025
Forecast Valid:
4pm EDT Jun 18, 2025-6pm EDT Jun 25, 2025
 
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