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

62°F

17°C

Humidity 78%
Wind Speed S 10 mph
Barometer 30.36 in (1028.2 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 15 Sep 10:56 pm EDT
Extended Forecast for

New London CT

  • Tonight

    Tonight: Partly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74. Calm wind becoming southwest 5 to 8 mph in the morning.

    High: 74 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 61. Light southwest wind.

    Low: 61 °F

    Partly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 79. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 79 °F

    Patchy Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 65. South wind around 5 mph.

    Low: 65 °F

    Chance
    Showers

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 79.

    High: 79 °F

    Decreasing
    Clouds

  • Friday Night

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

    Low: 53 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 53. Calm wind.
Wednesday
Mostly sunny, with a high near 74. Calm wind becoming southwest 5 to 8 mph in the morning.
Wednesday Night
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 61. Light southwest wind.
Thursday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 79. Calm wind becoming south 5 to 8 mph in the afternoon.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 65. South wind around 5 mph.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 53.
Saturday
Mostly sunny, with a high near 69.
Saturday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 55.
Sunday
Showers likely, mainly after 8am. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 58.
Monday
A 40 percent chance of showers. Mostly cloudy, with a high near 71.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 56.
Tuesday
A 40 percent chance of showers. Mostly cloudy, with a high near 70.
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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:
8:23 pm EDT Sep 15, 2026
Forecast Valid:
11pm EDT Sep 15, 2026-6pm EDT Sep 22, 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