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

76°F

24°C

Humidity 79%
Wind Speed S 6 mph
Barometer 30.10 in (1019.3 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 30 Jun 11:56 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

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 80. South wind 8 to 11 mph.

    High: 80 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 67 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 83. Southwest wind 10 to 13 mph, with gusts as high as 23 mph.

    High: 83 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 69. Southwest wind 7 to 11 mph.

    Low: 69 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 87. Southwest wind 6 to 11 mph.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 73.

    Low: 73 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 90.

    High: 90 °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

This Afternoon
Mostly sunny, with a high near 80. South wind 8 to 11 mph.
Tonight
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Southwest wind around 10 mph, with gusts as high as 20 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 83. Southwest wind 10 to 13 mph, with gusts as high as 23 mph.
Wednesday Night
Partly cloudy, with a low around 69. Southwest wind 7 to 11 mph.
Thursday
Sunny, with a high near 87. Southwest wind 6 to 11 mph.
Thursday Night
Clear, with a low around 73.
Friday
Sunny, with a high near 90.
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 90.
Sunday Night
A 30 percent chance of showers. Partly cloudy, with a low around 67.
Monday
A 30 percent chance of showers. Partly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New London CT
 41.36°N 72.08°W (Elev. 79 ft)
Last Update:
7:08 am EDT Jun 30, 2026
Forecast Valid:
12pm 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