Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

38°F

3°C

Humidity 55%
Wind Speed N 16 mph
Barometer 30.34 in (1027.5 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 24 Mar 9:56 am EDT
Extended Forecast for

3 Miles SE South Lyme CT

  • Today

    Today: Sunny, with a high near 44. West wind 5 to 13 mph.

    High: 44 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 35. Southwest wind 7 to 9 mph.

    Low: 35 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, with a high near 46. Light west wind becoming southwest 5 to 9 mph in the afternoon.

    High: 46 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Cloudy, with a low around 40. South wind 6 to 8 mph.

    Low: 40 °F

    Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 53. Southwest wind 8 to 15 mph.

    High: 53 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Rain likely, mainly after 2am.  Mostly cloudy, with a low around 46. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 46 °F

    Chance Rain
    then Rain
    Likely

  • Friday

    Friday: Rain likely, mainly before 8am.  Partly sunny, with a high near 48. Chance of precipitation is 60%.

    High: 48 °F

    Rain Likely
    then Chance
    Rain

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 39.

    High: 39 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 44. West wind 5 to 13 mph.
Tonight
Increasing clouds, with a low around 35. Southwest wind 7 to 9 mph.
Wednesday
Partly sunny, with a high near 46. Light west wind becoming southwest 5 to 9 mph in the afternoon.
Wednesday Night
Cloudy, with a low around 40. South wind 6 to 8 mph.
Thursday
Mostly cloudy, with a high near 53. Southwest wind 8 to 15 mph.
Thursday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 46. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain likely, mainly before 8am. Partly sunny, with a high near 48. Chance of precipitation is 60%.
Friday Night
Partly cloudy, with a low around 27.
Saturday
Sunny, with a high near 39.
Saturday Night
Mostly clear, with a low around 31.
Sunday
Sunny, with a high near 45.
Sunday Night
Partly cloudy, with a low around 36.
Monday
Mostly sunny, with a high near 50.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE South Lyme CT
 41.3°N 72.24°W (Elev. 0 ft)
3:49 am EDT Mar 24, 2026
10am EDT Mar 24, 2026-6pm EDT Mar 30, 2026
 
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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