National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fog/Mist

20°C

68°F

Humidity 100%
Wind Speed SE 7 km/h
Barometer 1020.1 mb (30.13 in)
Dewpoint 20°C (68°F)
Visibility 3.22 km
Last update 12 Jul 9:56 pm EDT
Extended Forecast for

Ledyard CT

  • Tonight

    Tonight: Mostly cloudy, with a low around 19. Calm wind.

    Low: 19 °C

    Mostly Cloudy

  • Sunday

    Sunday: Cloudy through mid morning, then gradual clearing, with a high near 27. Light and variable wind becoming southeast 6 to 11 km/h in the morning.

    High: 27 °C

    Gradual
    Clearing

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 20. Southeast wind 3 to 8 km/h.

    Low: 20 °C

    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 28. Light south wind increasing to 8 to 13 km/h in the morning.

    High: 28 °C

    Mostly Cloudy
    then Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 21. South wind 5 to 10 km/h becoming calm in the evening. Chance of precipitation is 30%.

    Low: 21 °C

    Chance
    Showers

  • Tuesday

    Tuesday: Sunny, with a high near 32.

    High: 32 °C

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 22.

    Low: 22 °C

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 32.

    High: 32 °C

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 22.

    Low: 22 °C

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 19. Calm wind.
Sunday
Cloudy through mid morning, then gradual clearing, with a high near 27. Light and variable wind becoming southeast 6 to 11 km/h in the morning.
Sunday Night
Mostly cloudy, with a low around 20. Southeast wind 3 to 8 km/h.
Monday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 28. Light south wind increasing to 8 to 13 km/h in the morning.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 21. South wind 5 to 10 km/h becoming calm in the evening. Chance of precipitation is 30%.
Tuesday
Sunny, with a high near 32.
Tuesday Night
Mostly clear, with a low around 22.
Wednesday
Mostly sunny, with a high near 32.
Wednesday Night
Mostly cloudy, with a low around 22.
Thursday
A 30 percent chance of showers after 2pm. Partly sunny, with a high near 31.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 22.
Friday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 31.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 21.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 28.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ledyard CT
 41.44°N 72°W (Elev. 200 m)
Last Update:
6:14 pm EDT Jul 12, 2025
Forecast Valid:
10pm EDT Jul 12, 2025-6pm EDT Jul 19, 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