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

86°F

30°C

Humidity 65%
Wind Speed SW 10 mph
Barometer 30.06 in (1017.8 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 7 Aug 2:56 pm EDT
Extended Forecast for

Conning Towers-Nautilus Park CT

Heat Advisory until August 8, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until August 8, 08:00pm

    NOW until 8:00pm Sat

    Heat Advisory

  • This Afternoon

    High: 80 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms. Increasing clouds, with a low around 72. Southwest wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after 5pm. Mostly cloudy, then gradually becoming sunny, with a high near 79. Southwest wind 5 to 10 mph.

    High: 79 °F

    Partly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 72. Southwest wind 5 to 7 mph. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 80. West wind 5 to 10 mph.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 70.

    Low: 70 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80. Southwest wind around 8 mph.
Tonight
A chance of showers and thunderstorms. Increasing clouds, with a low around 72. Southwest wind 3 to 6 mph. Chance of precipitation is 30%.
Saturday
A 30 percent chance of showers and thunderstorms after 5pm. Mostly cloudy, then gradually becoming sunny, with a high near 79. Southwest wind 5 to 10 mph.
Saturday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 72. Southwest wind 5 to 7 mph. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 80. West wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 68.
Monday
Sunny, with a high near 79.
Monday Night
Partly cloudy, with a low around 70.
Tuesday
A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 87.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 67.
Wednesday
Partly sunny, with a high near 83.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 66.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Conning Towers-Nautilus Park CT
 41.36°N 72.08°W (Elev. 79 ft)
Last Update:
2:19 pm EDT Aug 7, 2026
Forecast Valid:
3pm EDT Aug 7, 2026-6pm EDT Aug 14, 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