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

57°F

14°C

Humidity 96%
Wind Speed S 6 mph
Barometer 30.14 in (1020.7 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 18 May 4:56 am EDT
Extended Forecast for

4 Miles NNE Ledyard CT

  • Today

    Today: Sunny, with a high near 81. East wind 5 to 9 mph becoming south in the afternoon.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 61. Southwest wind around 6 mph.

    Low: 61 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 88. Light southwest wind increasing to 8 to 13 mph in the morning.

    High: 88 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 67. Southwest wind 7 to 9 mph.

    Low: 67 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm after 2pm. Sunny, then becoming mostly cloudy during the afternoon, with a high near 91. Southwest wind 7 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.

    High: 91 °F

    Sunny then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely before 8pm. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.

    Low: 55 °F

    Showers
    Likely then
    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 81. East wind 5 to 9 mph becoming south in the afternoon.
Tonight
Increasing clouds, with a low around 61. Southwest wind around 6 mph.
Tuesday
Mostly sunny, with a high near 88. Light southwest wind increasing to 8 to 13 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 67. Southwest wind 7 to 9 mph.
Wednesday
Showers likely and possibly a thunderstorm after 2pm. Sunny, then becoming mostly cloudy during the afternoon, with a high near 91. Southwest wind 7 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.
Wednesday Night
Showers likely before 8pm. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Thursday
Partly sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 66.
Friday Night
A 50 percent chance of showers after 2am. Mostly cloudy, with a low around 48.
Saturday
Showers likely. Mostly cloudy, with a high near 63. Chance of precipitation is 60%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.
Sunday
Showers likely. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.
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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:
2:32 am EDT May 18, 2026
Forecast Valid:
5am EDT May 18, 2026-6pm EDT May 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