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

64°F

18°C

Humidity 81%
Wind Speed N 3 mph
Barometer 30.05 in (1017.6 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 25 Jun 6:56 am EDT
Extended Forecast for

East Lyme CT

  • Today

    Today: Mostly sunny, with a high near 81. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm, mainly after 5am. Increasing clouds, with a low around 62. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 62 °F

    Partly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 11am, then a slight chance of showers between 11am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 78. Southwest wind 5 to 8 mph. Chance of precipitation is 60%.

    High: 78 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of thunderstorms before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 63. Light and variable wind. Chance of precipitation is 40%.

    Low: 63 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers. Mostly cloudy, with a high near 78. Light and variable wind.

    High: 78 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 62.

    Low: 62 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 81. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Tonight
Showers likely and possibly a thunderstorm, mainly after 5am. Increasing clouds, with a low around 62. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm before 11am, then a slight chance of showers between 11am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 78. Southwest wind 5 to 8 mph. Chance of precipitation is 60%.
Friday Night
A slight chance of thunderstorms before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 63. Light and variable wind. Chance of precipitation is 40%.
Saturday
A 50 percent chance of showers. Mostly cloudy, with a high near 78. Light and variable wind.
Saturday Night
Mostly cloudy, with a low around 62.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
Partly cloudy, with a low around 62.
Monday
Sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 65.
Tuesday
Mostly sunny, with a high near 88.
Tuesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 67.
Wednesday
Mostly sunny, with a high near 90.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
East Lyme CT
 41.39°N 72.25°W (Elev. 197 ft)
Last Update:
2:24 am EDT Jun 25, 2026
Forecast Valid:
7am EDT Jun 25, 2026-6pm EDT Jul 1, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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