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.

A Few Clouds

73°F

23°C

Humidity 87%
Wind Speed SW 14 mph
Barometer 29.88 in (1011.8 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 10 Sep 3:56 am EDT
Extended Forecast for

New London CT

  • Overnight

    Overnight: A 20 percent chance of showers. Mostly cloudy, with a low around 71. Southwest wind around 15 mph, with gusts as high as 29 mph.

    Low: 71 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 87. West wind 9 to 11 mph, with gusts as high as 21 mph.

    High: 87 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 63. Light northwest wind.

    Low: 63 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, then gradually becoming sunny, with a high near 77. Northwest wind around 6 mph.

    High: 77 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 54. Calm wind.

    Low: 54 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly between 8am and 2pm. Partly sunny, with a high near 77. Chance of precipitation is 60%.

    High: 77 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers. Mostly cloudy, with a low around 71. Southwest wind around 15 mph, with gusts as high as 29 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 87. West wind 9 to 11 mph, with gusts as high as 21 mph.
Thursday Night
Partly cloudy, with a low around 63. Light northwest wind.
Friday
Partly sunny, then gradually becoming sunny, with a high near 77. Northwest wind around 6 mph.
Friday Night
Clear, with a low around 54. Calm wind.
Saturday
Sunny, with a high near 74.
Saturday Night
A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 63.
Sunday
Showers likely, mainly between 8am and 2pm. Partly sunny, with a high near 77. Chance of precipitation is 60%.
Sunday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 63.
Monday
Mostly sunny, with a high near 79.
Monday Night
Partly cloudy, with a low around 60.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Partly cloudy, with a low around 65.
Wednesday
A 30 percent chance of showers. Mostly sunny, with a high near 80.
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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:
2:21 am EDT Sep 10, 2026
Forecast Valid:
4am EDT Sep 10, 2026-6pm EDT Sep 16, 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