Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

46°F

8°C

Humidity 35%
Wind Speed N 6 mph
Barometer 30.20 in (1022.7 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 20 Nov 11:56 am EST
Extended Forecast for

3 Miles ESE South Lyme CT

  • This Afternoon

    This Afternoon: Partly sunny, then gradually becoming sunny, with a high near 46. North wind around 5 mph becoming light and variable.

    High: 46 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 33. Calm wind.

    Low: 33 °F

    Mostly Clear

  • Friday

    Friday: Mostly cloudy, with a high near 53. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    High: 53 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 50 percent chance of rain.  Mostly cloudy, with a low around 40. Southwest wind 5 to 7 mph becoming northwest after midnight.

    Low: 40 °F

    Chance Rain

  • Saturday

    Saturday: A 20 percent chance of rain before 1pm.  Partly sunny, with a high near 50. Northwest wind 7 to 11 mph.

    High: 50 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, then gradually becoming sunny, with a high near 46. North wind around 5 mph becoming light and variable.
Tonight
Mostly clear, with a low around 33. Calm wind.
Friday
Mostly cloudy, with a high near 53. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 40. Southwest wind 5 to 7 mph becoming northwest after midnight.
Saturday
A 20 percent chance of rain before 1pm. Partly sunny, with a high near 50. Northwest wind 7 to 11 mph.
Saturday Night
Mostly clear, with a low around 31.
Sunday
Mostly sunny, with a high near 48.
Sunday Night
Partly cloudy, with a low around 37.
Monday
Mostly sunny, with a high near 52.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
A 30 percent chance of rain. Mostly cloudy, with a high near 54.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.
Wednesday
A 40 percent chance of rain. Mostly cloudy, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE South Lyme CT
 41.3°N 72.27°W (Elev. 75 ft)
11:16 am EST Nov 20, 2025
12pm EST Nov 20, 2025-6pm EST Nov 26, 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