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.

Mostly Cloudy

60°F

16°C

Humidity 84%
Wind Speed SW 10 mph
Barometer 29.72 in (1006.3 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 8 Nov 12:56 pm EST
Extended Forecast for

2 Miles N South Lyme CT

  • This Afternoon

    This Afternoon: Sunny, with a high near 64. Northwest wind 7 to 9 mph.

    High: 64 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 42. Calm wind becoming east around 5 mph after midnight.

    Low: 42 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Rain, mainly after 1pm. High near 60. Southeast wind 6 to 11 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 60 °F

    Chance Rain
    then Rain

  • Sunday Night

    Sunday Night: Rain with drizzle likely before 7pm, then drizzle or light rain likely between 7pm and 10pm, then showers likely after 10pm. Patchy fog before 10pm. Low around 51. East wind 5 to 9 mph becoming light and variable after midnight. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Rain and
    Patchy Fog

  • Monday

    Monday: Showers likely. Mostly cloudy, with a high near 59. West wind 5 to 9 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 59 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Veterans Day

    Veterans Day: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 64. Northwest wind 7 to 9 mph.
Tonight
Increasing clouds, with a low around 42. Calm wind becoming east around 5 mph after midnight.
Sunday
Rain, mainly after 1pm. High near 60. Southeast wind 6 to 11 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain with drizzle likely before 7pm, then drizzle or light rain likely between 7pm and 10pm, then showers likely after 10pm. Patchy fog before 10pm. Low around 51. East wind 5 to 9 mph becoming light and variable after midnight. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers likely. Mostly cloudy, with a high near 59. West wind 5 to 9 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Partly cloudy, with a low around 29.
Veterans Day
Partly sunny, with a high near 44.
Tuesday Night
Partly cloudy, with a low around 33.
Wednesday
Partly sunny, with a high near 51.
Wednesday Night
Mostly cloudy, with a low around 38.
Thursday
Mostly sunny, with a high near 51.
Thursday Night
Mostly clear, with a low around 34.
Friday
Mostly sunny, with a high near 50.
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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:
12:49 pm EST Nov 8, 2025
Forecast Valid:
1pm EST Nov 8, 2025-6pm EST Nov 14, 2025
 
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