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

46°F

8°C

Humidity 66%
Wind Speed W 12 G 23 mph
Barometer 29.76 in (1007.8 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 13 Nov 2:56 am EST
Extended Forecast for

Groton / New London Airport CT

  • Overnight

    Overnight: Mostly clear, with a low around 40. West wind around 11 mph, with gusts as high as 22 mph.

    Low: 40 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 49. West wind 11 to 15 mph, with gusts as high as 26 mph.

    High: 49 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming clear, with a low around 31. Wind chill values between 25 and 30. Northwest wind 11 to 14 mph, with gusts as high as 25 mph.

    Low: 31 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 45. Wind chill values between 20 and 30 early. Northwest wind 13 to 15 mph.

    High: 45 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 26. Northwest wind 9 to 11 mph.

    Low: 26 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Showers, mainly after 1am. Low around 37. Chance of precipitation is 80%.

    Low: 37 °F

    Chance
    Showers then
    Showers

  • Sunday

    Sunday: Showers likely before 1pm. Mostly cloudy, with a high near 54. Chance of precipitation is 60%.

    High: 54 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 40. West wind around 11 mph, with gusts as high as 22 mph.
Thursday
Increasing clouds, with a high near 49. West wind 11 to 15 mph, with gusts as high as 26 mph.
Thursday Night
Mostly cloudy, then gradually becoming clear, with a low around 31. Wind chill values between 25 and 30. Northwest wind 11 to 14 mph, with gusts as high as 25 mph.
Friday
Sunny, with a high near 45. Wind chill values between 20 and 30 early. Northwest wind 13 to 15 mph.
Friday Night
Mostly clear, with a low around 26. Northwest wind 9 to 11 mph.
Saturday
Mostly sunny, with a high near 47.
Saturday Night
Showers, mainly after 1am. Low around 37. Chance of precipitation is 80%.
Sunday
Showers likely before 1pm. Mostly cloudy, with a high near 54. Chance of precipitation is 60%.
Sunday Night
Mostly clear, with a low around 32.
Monday
Sunny, with a high near 44. Breezy.
Monday Night
Mostly clear, with a low around 30.
Tuesday
Mostly sunny, with a high near 46.
Tuesday Night
Mostly cloudy, with a low around 30.
Wednesday
Mostly sunny, with a high near 47.
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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:
3:22 am EST Nov 13, 2025
Forecast Valid:
3am EST Nov 13, 2025-6pm EST Nov 19, 2025
 
Forecast Discussion
 
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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