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.

Mostly Cloudy

69°F

21°C

Humidity 96%
Wind Speed Calm
Barometer 29.86 in (1011.1 mb)
Dewpoint 68°F (20°C)
Visibility 8.00 mi
Last update 18 Aug 7:56 am EDT
Extended Forecast for

3 Miles ENE Ledyard CT

  • Today

    Today: A 20 percent chance of showers after 2pm. Partly sunny, with a high near 82. Calm wind becoming west around 5 mph.

    High: 82 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 84. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 66. Light southwest wind.

    Low: 66 °F

    Mostly Clear

  • Thursday

    Thursday: A 40 percent chance of showers after 2pm. Mostly sunny, with a high near 82. Calm wind becoming west around 5 mph in the afternoon.

    High: 82 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers before 2am. Mostly cloudy, with a low around 61.

    Low: 61 °F

    Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 79.

    High: 79 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 61.

    Low: 61 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers. Partly sunny, with a high near 77.

    High: 77 °F

    Chance
    Showers

Detailed Forecast

Today
A 20 percent chance of showers after 2pm. Partly sunny, with a high near 82. Calm wind becoming west around 5 mph.
Tonight
A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 64. Calm wind.
Wednesday
Sunny, with a high near 84. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 66. Light southwest wind.
Thursday
A 40 percent chance of showers after 2pm. Mostly sunny, with a high near 82. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
A 40 percent chance of showers before 2am. Mostly cloudy, with a low around 61.
Friday
Partly sunny, with a high near 79.
Friday Night
Mostly cloudy, with a low around 61.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 77.
Saturday Night
Showers likely. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Sunday
A 50 percent chance of showers. Mostly cloudy, with a high near 78.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 61.
Monday
Mostly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Ledyard CT
 41.46°N 71.94°W (Elev. 292 ft)
Last Update:
5:37 am EDT Aug 18, 2026
Forecast Valid:
8am EDT Aug 18, 2026-6pm EDT Aug 24, 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