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.

Overcast

48°F

9°C

Humidity 89%
Wind Speed S 8 mph
Barometer 30.21 in (1022.8 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 3 Apr 1:56 pm EDT
Extended Forecast for

2 Miles N South Lyme CT

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 56. Southwest wind around 8 mph.

    High: 56 °F

    Partly Sunny

  • Tonight

    Tonight: Patchy dense fog after 8pm. Otherwise, mostly cloudy, with a low around 50. Southwest wind around 6 mph.

    Low: 50 °F

    Patchy Dense
    Fog

  • Saturday

    Saturday: A 20 percent chance of showers after 2pm. Areas of dense fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 64. Calm wind becoming southeast 5 to 9 mph in the afternoon.

    High: 64 °F

    Areas Dense
    Fog then
    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A 50 percent chance of showers, mainly after 8pm. Cloudy, with a low around 40. East wind 5 to 9 mph, with gusts as high as 22 mph.

    Low: 40 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm, then showers after 2pm. High near 59. Southwest wind 8 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 59 °F

    Showers

  • Sunday Night

    Sunday Night: Showers before 8pm. Low around 38. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Showers then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 56. Southwest wind around 8 mph.
Tonight
Patchy dense fog after 8pm. Otherwise, mostly cloudy, with a low around 50. Southwest wind around 6 mph.
Saturday
A 20 percent chance of showers after 2pm. Areas of dense fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 64. Calm wind becoming southeast 5 to 9 mph in the afternoon.
Saturday Night
A 50 percent chance of showers, mainly after 8pm. Cloudy, with a low around 40. East wind 5 to 9 mph, with gusts as high as 22 mph.
Sunday
Showers likely and possibly a thunderstorm, then showers after 2pm. High near 59. Southwest wind 8 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers before 8pm. Low around 38. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 53.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
Mostly sunny, with a high near 50.
Tuesday Night
Mostly clear, with a low around 28.
Wednesday
Sunny, with a high near 47.
Wednesday Night
Mostly clear, with a low around 34.
Thursday
Sunny, with a high near 55.
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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:
2:23 pm EDT Apr 3, 2026
Forecast Valid:
2pm EDT Apr 3, 2026-6pm EDT Apr 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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