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

72°F

22°C

Humidity 68%
Wind Speed SW 12 mph
Barometer 30.31 in (1026.5 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 16 Sep 1:56 pm EDT
Extended Forecast for

4 Miles NNE Ledyard CT

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 74. Southwest wind around 8 mph.

    High: 74 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 57. Calm wind.

    Low: 57 °F

    Partly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Partly sunny, with a high near 78. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 78 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 64. South wind around 5 mph.

    Low: 64 °F

    Chance
    Showers

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 78. Northwest wind 6 to 9 mph.

    High: 78 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.

    High: 67 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 74. Southwest wind around 8 mph.
Tonight
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 57. Calm wind.
Thursday
Partly sunny, with a high near 78. Calm wind becoming south 5 to 8 mph in the afternoon.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 64. South wind around 5 mph.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 78. Northwest wind 6 to 9 mph.
Friday Night
Partly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 49.
Sunday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.
Sunday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.
Monday
A 30 percent chance of showers. Mostly cloudy, with a high near 69.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 51.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Ledyard CT
 41.5°N 71.96°W (Elev. 210 ft)
Last Update:
1:56 am EDT Sep 16, 2026
Forecast Valid:
2pm EDT Sep 16, 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