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

64°F

18°C

Humidity 81%
Wind Speed E 9 mph
Barometer 30.11 in (1019.5 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 16 Jun 6:56 pm EDT
Extended Forecast for

2 Miles SSE South Lyme CT

  • Tonight

    Tonight: A slight chance of drizzle or light rain after 2am. Patchy fog after 2am. Otherwise, cloudy, with a low around 60. East wind 5 to 9 mph. Chance of precipitation is 20%.

    Low: 60 °F

    Cloudy then
    Slight Chance
    Light Rain
    and Patchy
    Fog

  • Tuesday

    Tuesday: A 40 percent chance of showers, mainly after 8am. Patchy fog before noon. Otherwise, cloudy, with a high near 69. East wind around 7 mph.

    High: 69 °F

    Chance
    Showers and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: Showers likely. Patchy fog. Otherwise, cloudy, with a low around 63. Light east wind. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely and
    Patchy Fog

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly after 2pm. Mostly cloudy, with a high near 75. Calm wind becoming southwest 5 to 7 mph in the morning.

    High: 75 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 65. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 65 °F

    Chance
    Showers

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of drizzle or light rain after 2am. Patchy fog after 2am. Otherwise, cloudy, with a low around 60. East wind 5 to 9 mph. Chance of precipitation is 20%.
Tuesday
A 40 percent chance of showers, mainly after 8am. Patchy fog before noon. Otherwise, cloudy, with a high near 69. East wind around 7 mph.
Tuesday Night
Showers likely. Patchy fog. Otherwise, cloudy, with a low around 63. Light east wind. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of showers, mainly after 2pm. Mostly cloudy, with a high near 75. Calm wind becoming southwest 5 to 7 mph in the morning.
Wednesday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 65. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Juneteenth
Mostly sunny, with a high near 83.
Thursday Night
Partly cloudy, with a low around 64.
Friday
Sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 61.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly cloudy, with a low around 64.
Sunday
Partly sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 66.
Monday
Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE South Lyme CT
 41.28°N 72.3°W (Elev. 0 ft)
Last Update:
7:07 pm EDT Jun 16, 2025
Forecast Valid:
7pm EDT Jun 16, 2025-6pm EDT Jun 23, 2025
 
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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