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

70°F

21°C

Humidity 93%
Wind Speed S 7 mph
Barometer 29.86 in (1011.0 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 23 Aug 8:56 pm EDT
Extended Forecast for

New London CT

  • Tonight

    Tonight: Mostly clear, with a low around 64. West wind 5 to 7 mph.

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 79. Light west wind becoming southwest 5 to 10 mph in the morning.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61. Southwest wind 5 to 7 mph becoming light and variable after midnight.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers after 2pm. Sunny, with a high near 78. Southwest wind 6 to 11 mph.

    High: 78 °F

    Sunny then
    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60. West wind around 6 mph.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.

    Low: 67 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 64. West wind 5 to 7 mph.
Monday
Sunny, with a high near 79. Light west wind becoming southwest 5 to 10 mph in the morning.
Monday Night
Mostly clear, with a low around 61. Southwest wind 5 to 7 mph becoming light and variable after midnight.
Tuesday
A 20 percent chance of showers after 2pm. Sunny, with a high near 78. Southwest wind 6 to 11 mph.
Tuesday Night
Mostly clear, with a low around 60. West wind around 6 mph.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 64.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Friday
Showers likely, mainly before 8am. Partly sunny, with a high near 83. Chance of precipitation is 60%.
Friday Night
Partly cloudy, with a low around 65.
Saturday
Sunny, with a high near 83.
Saturday Night
Mostly clear, with a low around 61.
Sunday
Sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
New London CT
 41.35°N 72.11°W (Elev. 98 ft)
Last Update:
2:20 pm EDT Aug 23, 2026
Forecast Valid:
9pm EDT Aug 23, 2026-6pm EDT Aug 30, 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