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

59°F

15°C

Humidity 72%
Wind Speed SW 13 mph
Barometer 29.91 in (1012.8 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 7 Oct 8:56 pm EDT
Extended Forecast for

Groton / New London Airport CT

  • Tonight

    Tonight: Clear, with a low around 56. Southwest wind around 11 mph.

    Low: 56 °F

    Clear

  • Thursday

    Thursday: Partly sunny, then becoming sunny during the afternoon, with a high near 71. Southwest wind 13 to 15 mph.

    High: 71 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 48. Northwest wind 5 to 10 mph.

    Low: 48 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 67. West wind 7 to 14 mph.

    High: 67 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 45. Northwest wind 5 to 7 mph.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers, mainly after 2pm. High near 67. Chance of precipitation is 80%.

    High: 67 °F

    Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: Showers. Low around 59. Chance of precipitation is 80%.

    Low: 59 °F

    Showers

Detailed Forecast

Tonight
Clear, with a low around 56. Southwest wind around 11 mph.
Thursday
Partly sunny, then becoming sunny during the afternoon, with a high near 71. Southwest wind 13 to 15 mph.
Thursday Night
Mostly clear, with a low around 48. Northwest wind 5 to 10 mph.
Friday
Sunny, with a high near 67. West wind 7 to 14 mph.
Friday Night
Mostly clear, with a low around 45. Northwest wind 5 to 7 mph.
Saturday
Sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 53.
Sunday
Showers, mainly after 2pm. High near 67. Chance of precipitation is 80%.
Sunday Night
Showers. Low around 59. Chance of precipitation is 80%.
Columbus Day
Showers likely, mainly before 8am. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.
Monday Night
Mostly cloudy, with a low around 55.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 65.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 44.
Wednesday
Partly sunny, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Groton / New London Airport CT
 41.34°N 72.05°W (Elev. 49 ft)
Last Update:
2:28 pm EDT Oct 7, 2026
Forecast Valid:
9pm EDT Oct 7, 2026-6pm EDT Oct 14, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation