National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

A Change in the Weather Pattern

The Atmospheric River event has ended for the Northwest, and conditions will be drier for a couple of days. A strong cold front in the East may produce damaging high winds in the central Appalachians and critical fire weather threats. Bitter wind chills across Northeast Alaska and heavy snow in the Southeast will continue, and blizzard conditions are expected to develop in far west-central Alaska. Read More >

Current conditions at

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

Lat: 41.33°NLon: 72.05°WElev: 10ft.

A Few Clouds

36°F

2°C

Humidity 79%
Wind Speed Calm
Barometer 30.17 in (1021.5 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 1 Dec 7:56 pm EST
Extended Forecast for

3 Miles SSE South Lyme CT

  • Tonight

    Tonight: A 30 percent chance of rain after 1am. Cloudy, with a temperature rising to around 46 by 4am. Northwest wind around 6 mph becoming calm after midnight.

    Mostly Cloudy
    then Chance
    Rain

    Low: 43 °F⇑

  • Thursday

    Thursday: Scattered showers before 1pm, then scattered showers after 4pm. Mostly cloudy, with a high near 55. Southwest wind 14 to 17 mph. Chance of precipitation is 40%.

    Scattered
    Showers

    High: 55 °F

  • Thursday
    Night

    Thursday Night: Scattered showers before 1am. Mostly cloudy during the early evening, then becoming mostly clear, with a low around 40. Breezy, with a west wind 18 to 20 mph. Chance of precipitation is 30%.

    Scattered
    Showers and
    Breezy

    Low: 40 °F

  • Friday

    Friday: Sunny, with a high near 45. West wind 16 to 18 mph, with gusts as high as 30 mph.

    Sunny

    High: 45 °F

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 33. West wind 10 to 14 mph.

    Partly Cloudy

    Low: 33 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 46.

    Mostly Sunny

    High: 46 °F

  • Saturday
    Night

    Saturday Night: Mostly clear, with a low around 30.

    Mostly Clear

    Low: 30 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 51.

    Mostly Sunny

    High: 51 °F

  • Sunday
    Night

    Sunday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 40.

    Chance
    Showers

    Low: 40 °F

Detailed Forecast

Tonight
A 30 percent chance of rain after 1am. Cloudy, with a temperature rising to around 46 by 4am. Northwest wind around 6 mph becoming calm after midnight.
Thursday
Scattered showers before 1pm, then scattered showers after 4pm. Mostly cloudy, with a high near 55. Southwest wind 14 to 17 mph. Chance of precipitation is 40%.
Thursday Night
Scattered showers before 1am. Mostly cloudy during the early evening, then becoming mostly clear, with a low around 40. Breezy, with a west wind 18 to 20 mph. Chance of precipitation is 30%.
Friday
Sunny, with a high near 45. West wind 16 to 18 mph, with gusts as high as 30 mph.
Friday Night
Partly cloudy, with a low around 33. West wind 10 to 14 mph.
Saturday
Mostly sunny, with a high near 46.
Saturday Night
Mostly clear, with a low around 30.
Sunday
Mostly sunny, with a high near 51.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 40.
Monday
A 50 percent chance of showers. Mostly cloudy, with a high near 54.
Monday Night
A 30 percent chance of showers. Partly cloudy, with a low around 33.
Tuesday
Mostly sunny, with a high near 44.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 48.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
3 Miles SSE South Lyme CT
 41.28°N 72.27°W (Elev. 0 ft)
Last Update:
7:18 pm EST Dec 1, 2021
Forecast Valid:
8pm EST Dec 1, 2021-6pm EST Dec 8, 2021
 
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