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.

Fog/Mist

53°F

12°C

Humidity 96%
Wind Speed SW 8 mph
Barometer 29.79 in (1008.9 mb)
Dewpoint 52°F (11°C)
Visibility 2.00 mi
Wind Chill50°F (10°C)
Last update 5 Apr 1:56 pm EDT
Extended Forecast for

2 Miles N South Lyme CT

  • This Afternoon

    This Afternoon: Rain. Patchy fog. Steady temperature around 53. Southwest wind around 11 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Rain and
    Patchy Fog

  • Tonight

    Tonight: Showers before 8pm. Patchy fog before 11pm. Low around 38. West wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Showers and
    Patchy Fog
    then Partly
    Cloudy

  • Monday

    Monday: Sunny, with a high near 53. West wind 9 to 11 mph, with gusts as high as 22 mph.

    High: 53 °F

    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers, mainly after 2am. Partly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers, mainly before 2pm. Partly sunny, with a high near 50. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 21 mph.

    High: 50 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 32.

    Low: 32 °F

    Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Rain. Patchy fog. Steady temperature around 53. Southwest wind around 11 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Showers before 8pm. Patchy fog before 11pm. Low around 38. West wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Sunny, with a high near 53. West wind 9 to 11 mph, with gusts as high as 22 mph.
Monday Night
A 30 percent chance of showers, mainly after 2am. Partly cloudy, with a low around 36. Calm wind.
Tuesday
A 30 percent chance of showers, mainly before 2pm. Partly sunny, with a high near 50. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 21 mph.
Tuesday Night
Mostly clear, with a low around 29.
Wednesday
Sunny, with a high near 47.
Wednesday Night
Clear, with a low around 32.
Thursday
Mostly sunny, with a high near 51.
Thursday Night
Partly cloudy, with a low around 39.
Friday
Mostly sunny, with a high near 61.
Friday Night
Partly cloudy, with a low around 46.
Saturday
Mostly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N South Lyme CT
 41.35°N 72.29°W (Elev. 98 ft)
Last Update:
2:43 pm EDT Apr 5, 2026
Forecast Valid:
2pm EDT Apr 5, 2026-6pm EDT Apr 11, 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