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.

Light Rain Fog/Mist

54°F

12°C

Humidity 77%
Wind Speed NW 17 G 25 mph
Barometer 29.81 in (1009.2 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 17 Oct 2:56 am EDT
Extended Forecast for

2 Miles SSE South Lyme CT

  • Overnight

    Overnight: Showers likely. Cloudy, with a low around 42. Northwest wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.

    Low: 42 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers likely, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 53. North wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.

    High: 53 °F

    Showers
    Likely then
    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 35. North wind 7 to 9 mph.

    Low: 35 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 56. North wind around 6 mph becoming light and variable in the afternoon.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 41. Light northeast wind.

    Low: 41 °F

    Clear

  • Monday

    Monday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Overnight
Showers likely. Cloudy, with a low around 42. Northwest wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.
Saturday
Showers likely, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 53. North wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Saturday Night
Mostly clear, with a low around 35. North wind 7 to 9 mph.
Sunday
Sunny, with a high near 56. North wind around 6 mph becoming light and variable in the afternoon.
Sunday Night
Clear, with a low around 41. Light northeast wind.
Monday
Mostly sunny, with a high near 60.
Monday Night
Mostly cloudy, with a low around 43.
Tuesday
Partly sunny, with a high near 64.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
Mostly sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
Partly sunny, with a high near 60.
Thursday Night
Mostly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 63.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE South Lyme CT
 41.28°N 72.3°W (Elev. 0 ft)
Last Update:
2:21 am EDT Oct 17, 2026
Forecast Valid:
3am EDT Oct 17, 2026-6pm EDT Oct 23, 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