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

68°F

20°C

Humidity 100%
Wind Speed SE 7 mph
Barometer 29.97 in (1014.9 mb)
Dewpoint 68°F (20°C)
Visibility 6.00 mi
Last update 22 Aug 8:56 pm EDT
Extended Forecast for

3 Miles ENE Ledyard CT

  • Tonight

    Tonight: Patchy drizzle before 11pm, then a chance of showers and thunderstorms, mainly after 2am. Patchy fog. Otherwise, mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms, mainly after 5pm. Mostly cloudy, with a high near 78. Northeast wind 5 to 8 mph becoming south in the afternoon.

    High: 78 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 62. South wind around 5 mph becoming calm in the evening.

    Low: 62 °F

    Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 78. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. Southwest wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy drizzle before 11pm, then a chance of showers and thunderstorms, mainly after 2am. Patchy fog. Otherwise, mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 30%.
Sunday
A 50 percent chance of showers and thunderstorms, mainly after 5pm. Mostly cloudy, with a high near 78. Northeast wind 5 to 8 mph becoming south in the afternoon.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 62. South wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 78. Light southwest wind increasing to 5 to 10 mph in the morning.
Monday Night
Mostly clear, with a low around 57. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 63.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 63.
Saturday
Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Ledyard CT
 41.46°N 71.94°W (Elev. 292 ft)
Last Update:
2:45 pm EDT Aug 22, 2026
Forecast Valid:
9pm EDT Aug 22, 2026-6pm EDT Aug 29, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation