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.

Fair

73°F

23°C

Humidity 53%
Wind Speed SE 16 mph
Barometer 30.15 in (1020.8 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 18 Aug 3:56 pm EDT
Extended Forecast for

4 Miles NNW Hadlyme CT

  • Tonight

    Tonight: Partly cloudy, with a low around 53. East wind 5 to 7 mph becoming calm in the evening.

    Low: 53 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 75. Northeast wind 5 to 7 mph becoming southeast in the afternoon.

    High: 75 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 56. Southeast wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers after 2pm. Partly sunny, with a high near 74. Southeast wind 5 to 9 mph.

    High: 74 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers before 2am. Partly cloudy, with a low around 57. Northeast wind around 7 mph.

    Low: 57 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Friday Night

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

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 53. East wind 5 to 7 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 75. Northeast wind 5 to 7 mph becoming southeast in the afternoon.
Tuesday Night
Partly cloudy, with a low around 56. Southeast wind around 5 mph becoming calm in the evening.
Wednesday
A 20 percent chance of showers after 2pm. Partly sunny, with a high near 74. Southeast wind 5 to 9 mph.
Wednesday Night
A 20 percent chance of showers before 2am. Partly cloudy, with a low around 57. Northeast wind around 7 mph.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 61.
Saturday
Sunny, with a high near 81.
Saturday Night
Partly cloudy, with a low around 65.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 80.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 62.
Monday
A 30 percent chance of showers. Partly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Hadlyme CT
 41.44°N 72.35°W (Elev. 433 ft)
Last Update:
2:53 pm EDT Aug 18, 2025
Forecast Valid:
4pm EDT Aug 18, 2025-6pm EDT Aug 25, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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