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

46°F

8°C

Humidity 63%
Wind Speed S 14 mph
Barometer 30.44 in (1030.7 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 12 Apr 4:56 pm EDT
Extended Forecast for

2 Miles N South Lyme CT

  • Tonight

    Tonight: A slight chance of showers before 2am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 43. South wind 3 to 5 mph. Chance of precipitation is 20%.

    Low: 43 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Monday

    Monday: Mostly cloudy, with a high near 63. Southwest wind 8 to 11 mph, with gusts as high as 24 mph.

    High: 63 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 54. Southwest wind 3 to 7 mph.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 73 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 2am. Partly cloudy, with a low around 55. South wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers after 8pm. Mostly cloudy, with a low around 55.

    Low: 55 °F

    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 73.

    High: 73 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A slight chance of showers before 2am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 43. South wind 3 to 5 mph. Chance of precipitation is 20%.
Monday
Mostly cloudy, with a high near 63. Southwest wind 8 to 11 mph, with gusts as high as 24 mph.
Monday Night
Partly cloudy, with a low around 54. Southwest wind 3 to 7 mph.
Tuesday
Mostly sunny, with a high near 73. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Tuesday Night
A 20 percent chance of showers before 2am. Partly cloudy, with a low around 55. South wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 76.
Wednesday Night
A 40 percent chance of showers after 8pm. Mostly cloudy, with a low around 55.
Thursday
Partly sunny, with a high near 73.
Thursday Night
Mostly cloudy, with a low around 54.
Friday
Mostly sunny, with a high near 74.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 49.
Sunday
Partly sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N South Lyme CT
 41.35°N 72.29°W (Elev. 98 ft)
Last Update:
4:35 pm EDT Apr 12, 2026
Forecast Valid:
5pm EDT Apr 12, 2026-6pm EDT Apr 19, 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