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

75°F

24°C

Humidity 74%
Wind Speed SW 10 mph
Barometer 30.09 in (1019.0 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 21 Jun 2:56 pm EDT
Extended Forecast for

Ledyard CT

Extreme Heat Warning June 22, 12:00pm until June 24, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Tonight

    Tonight: Partly cloudy, with a low around 66. Southwest wind 5 to 7 mph.

    Low: 66 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 90. Heat index values as high as 96. Southwest wind 9 to 11 mph, with gusts as high as 22 mph.

    High: 90 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 73. West wind 5 to 7 mph.

    Low: 73 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 91. Heat index values as high as 97. Northwest wind 5 to 7 mph becoming south in the morning.

    High: 91 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 69. South wind around 5 mph becoming calm in the evening.

    Low: 69 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 98.

    High: 98 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 65.

    Low: 65 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 66. Southwest wind 5 to 7 mph.
Sunday
Partly sunny, with a high near 90. Heat index values as high as 96. Southwest wind 9 to 11 mph, with gusts as high as 22 mph.
Sunday Night
Partly cloudy, with a low around 73. West wind 5 to 7 mph.
Monday
Mostly sunny, with a high near 91. Heat index values as high as 97. Northwest wind 5 to 7 mph becoming south in the morning.
Monday Night
Mostly clear, with a low around 69. South wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 98.
Tuesday Night
Mostly clear, with a low around 74.
Wednesday
Mostly sunny, with a high near 91.
Wednesday Night
Mostly cloudy, with a low around 65.
Thursday
Partly sunny, with a high near 78.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 63.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 73.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 62.
Saturday
A 30 percent chance of showers. Mostly cloudy, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ledyard CT
 41.46°N 72°W (Elev. 210 ft)
Last Update:
3:25 pm EDT Jun 21, 2025
Forecast Valid:
3pm EDT Jun 21, 2025-6pm EDT Jun 28, 2025
 
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