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

79°F

26°C

Humidity 82%
Wind Speed SW 13 mph
Barometer 29.98 in (1015.3 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 8 Aug 11:56 am EDT
Extended Forecast for

2 Miles NW Ledyard 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: 88 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm in the evening.

    Low: 72 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 89. Heat index values as high as 95. Calm wind becoming west 5 to 8 mph in the morning.

    High: 89 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °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 70.

    Low: 70 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 87.

    High: 87 °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 88. Heat index values as high as 96. Southwest wind around 9 mph.
Tonight
A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 89. Heat index values as high as 95. Calm wind becoming west 5 to 8 mph in the morning.
Sunday Night
Mostly clear, with a low around 65. 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 70.
Tuesday
A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 87.
Tuesday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 66.
Wednesday
A 30 percent chance of showers before 2pm. Partly sunny, with a high near 83.
Wednesday Night
A 30 percent chance of showers after 8pm. Mostly cloudy, with a low around 64.
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 62.
Friday
Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Ledyard CT
 41.47°N 72.02°W (Elev. 197 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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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation