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

51°F

11°C

Humidity 74%
Wind Speed SW 14 mph
Barometer 30.06 in (1017.7 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 30 Mar 4:56 pm EDT
Extended Forecast for

2 Miles N South Lyme CT

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 60. Southwest wind around 11 mph, with gusts as high as 29 mph.

    High: 60 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of showers before 8pm, then showers likely after 2am. Mostly cloudy, with a low around 48. Southwest wind 6 to 9 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Partly Cloudy
    then Showers
    Likely

  • Tuesday

    Tuesday: Showers likely, mainly before 8am. Partly sunny, with a high near 64. Southwest wind 6 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 64 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 52. Southwest wind around 9 mph, with gusts as high as 24 mph.

    Low: 52 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after 5pm. Partly sunny, with a high near 61. Southwest wind 9 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 61 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely, mainly before 2am. Mostly cloudy, with a low around 41. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Showers
    Likely

  • Thursday

    Thursday: A 30 percent chance of showers before 2pm. Cloudy, with a high near 49.

    High: 49 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers between 8pm and 2am. Cloudy, with a low around 39. Chance of precipitation is 30%.

    Low: 39 °F

    Chance
    Showers

  • Friday

    Friday: Mostly cloudy, with a high near 60.

    High: 60 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 60. Southwest wind around 11 mph, with gusts as high as 29 mph.
Tonight
A slight chance of showers before 8pm, then showers likely after 2am. Mostly cloudy, with a low around 48. Southwest wind 6 to 9 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Showers likely, mainly before 8am. Partly sunny, with a high near 64. Southwest wind 6 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 52. Southwest wind around 9 mph, with gusts as high as 24 mph.
Wednesday
Showers likely, with thunderstorms also possible after 5pm. Partly sunny, with a high near 61. Southwest wind 9 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely, mainly before 2am. Mostly cloudy, with a low around 41. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A 30 percent chance of showers before 2pm. Cloudy, with a high near 49.
Thursday Night
A chance of showers between 8pm and 2am. Cloudy, with a low around 39. Chance of precipitation is 30%.
Friday
Mostly cloudy, with a high near 60.
Friday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 50.
Saturday
Mostly cloudy, with a high near 65.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 45.
Sunday
A 50 percent chance of showers. Mostly cloudy, with a high near 62.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 43.
Monday
A chance of showers. Partly sunny, with a high near 55.
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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:
2:28 pm EDT Mar 30, 2026
Forecast Valid:
5pm EDT Mar 30, 2026-6pm EDT Apr 6, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation