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

82°F

28°C

Humidity 72%
Wind Speed SW 17 G 25 mph
Barometer 29.96 in (1014.6 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 8 Aug 12:56 pm EDT
Extended Forecast for

2 Miles NNE 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: 89 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 73. Southwest wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 90. Heat index values as high as 96. West wind 3 to 8 mph.

    High: 90 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 86. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 66.

    Low: 66 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 89. Heat index values as high as 97. Southwest wind around 9 mph.
Tonight
A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 73. Southwest wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 90. Heat index values as high as 96. West wind 3 to 8 mph.
Sunday Night
Mostly clear, with a low around 66. Calm wind.
Monday
Sunny, with a high near 86. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 71.
Tuesday
A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 88.
Tuesday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 66.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
A 30 percent chance of showers after 8pm. Mostly cloudy, with a low around 65.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 83.
Thursday Night
A 30 percent chance of showers. Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Conning Towers-Nautilus Park CT
 41.41°N 72.07°W (Elev. 95 ft)
Last Update:
2:28 am EDT Aug 8, 2026
Forecast Valid:
12pm EDT Aug 8, 2026-6pm EDT Aug 14, 2026
 
Forecast Discussion
 
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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