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.

Light Rain Fog/Mist

71°F

22°C

Humidity 96%
Wind Speed E 3 mph
Barometer 29.81 in (1009.4 mb)
Dewpoint 70°F (21°C)
Visibility 5.00 mi
Last update 4 Sep 5:56 am EDT
Extended Forecast for

2 Miles W Hadlyme CT

  • Today

    Today: A 20 percent chance of showers and thunderstorms before 8am. Mostly sunny, with a high near 83. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 83 °F

    Slight Chance
    T-storms then
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 61. Northwest wind around 6 mph.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Isolated showers after 2pm. Increasing clouds, with a high near 77. North wind around 6 mph. Chance of precipitation is 20%.

    High: 77 °F

    Sunny then
    Isolated
    Showers

  • Saturday Night

    Saturday Night: Scattered showers, mainly between 8pm and 2am. Mostly cloudy, with a low around 56. Light northeast wind. Chance of precipitation is 30%.

    Low: 56 °F

    Scattered
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 71. North wind 3 to 6 mph.

    High: 71 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms before 8am. Mostly sunny, with a high near 83. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Tonight
Mostly clear, with a low around 61. Northwest wind around 6 mph.
Saturday
Isolated showers after 2pm. Increasing clouds, with a high near 77. North wind around 6 mph. Chance of precipitation is 20%.
Saturday Night
Scattered showers, mainly between 8pm and 2am. Mostly cloudy, with a low around 56. Light northeast wind. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 71. North wind 3 to 6 mph.
Sunday Night
Mostly clear, with a low around 54.
Labor Day
Sunny, with a high near 75.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
Partly sunny, with a high near 73.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 63.
Thursday
Partly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Hadlyme CT
 41.4°N 72.36°W (Elev. 279 ft)
Last Update:
2:33 am EDT Sep 4, 2026
Forecast Valid:
6am EDT Sep 4, 2026-6pm EDT Sep 10, 2026
 
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