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.

Overcast

68°F

20°C

Humidity 96%
Wind Speed E 5 mph
Barometer 29.96 in (1014.5 mb)
Dewpoint 67°F (19°C)
Visibility 7.00 mi
Last update 22 Aug 10:56 pm EDT
Extended Forecast for

3 Miles ENE Hadlyme CT

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 2am. Patchy fog. Otherwise, mostly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80. Light and variable wind becoming southeast 5 to 7 mph in the morning.

    High: 80 °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 61. Light southwest wind.

    Low: 61 °F

    Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 80. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. Light west wind.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly after 2am. Patchy fog. Otherwise, mostly cloudy, with a low around 62. Calm wind.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80. Light and variable wind becoming southeast 5 to 7 mph in the morning.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 61. Light southwest wind.
Monday
Sunny, with a high near 80. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Monday Night
Mostly clear, with a low around 57. Light west wind.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 64.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 63.
Saturday
Mostly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Hadlyme CT
 41.41°N 72.3°W (Elev. 98 ft)
Last Update:
10:43 pm EDT Aug 22, 2026
Forecast Valid:
11pm EDT Aug 22, 2026-6pm EDT Aug 29, 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