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

70°F

21°C

Humidity 93%
Wind Speed S 3 mph
Barometer 30.11 in (1019.7 mb)
Dewpoint 68°F (20°C)
Visibility 9.00 mi
Last update 30 Jun 7:56 am EDT
Extended Forecast for

New London CT

Extreme Heat Watch July 1, 12:00pm until July 4, 09:00pm
Click here for hazard details and duration
Extreme Heat Watch

  • Today

    Today: Mostly sunny, with a high near 85. Light southwest wind becoming south 5 to 10 mph in the morning.

    High: 85 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Southwest wind 6 to 8 mph.

    Low: 68 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Southwest wind 9 to 13 mph.

    High: 88 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 70. Southwest wind 5 to 7 mph.

    Low: 70 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 96. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 96 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 74.

    Low: 74 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 96.

    High: 96 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Independence Day

    Independence Day: A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 94.

    High: 94 °F

    Sunny then
    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 85. Light southwest wind becoming south 5 to 10 mph in the morning.
Tonight
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Southwest wind 6 to 8 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Southwest wind 9 to 13 mph.
Wednesday Night
Partly cloudy, with a low around 70. Southwest wind 5 to 7 mph.
Thursday
Sunny, with a high near 96. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Clear, with a low around 74.
Friday
Sunny, with a high near 96.
Friday Night
Mostly clear, with a low around 73.
Independence Day
A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 94.
Saturday Night
A 30 percent chance of showers before 2am. Partly cloudy, with a low around 70.
Sunday
Mostly sunny, with a high near 91.
Sunday Night
A 30 percent chance of showers. Partly cloudy, with a low around 68.
Monday
A 30 percent chance of showers. Partly sunny, with a high near 86.
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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:
7:08 am EDT Jun 30, 2026
Forecast Valid:
8am EDT Jun 30, 2026-6pm EDT Jul 6, 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