Current conditions at

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

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Light Snow Fog/Mist

21°F

-6°C

Humidity 85%
Wind Speed NA
Barometer 30.01 in (1016.0 mb)
Dewpoint 17°F (-8°C)
Visibility 1.50 mi
Last update 26 Dec 10:56 pm EST
Extended Forecast for

South Lyme CT

Winter Storm Warning December 26, 11:37pm until December 27, 01:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning December 26, 11:37pm until December 27, 01:00pm

    NOW until 1:00pm Sat

    Winter Storm Warning

  • Tonight

    Low: 20 °F

    Heavy Snow

  • Saturday

    Saturday: Snow likely, mainly before 7am.  Cloudy, then gradually becoming mostly sunny, with a high near 33. Wind chill values between 15 and 25. Northeast wind 5 to 9 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 33 °F

    Snow Likely
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 16. Calm wind.

    Low: 16 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 39. Wind chill values between 15 and 25. Calm wind becoming west around 6 mph.

    High: 39 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of freezing rain before 10pm, then rain.  Temperature rising to around 39 by 5am. Calm wind becoming south around 5 mph after midnight.  Chance of precipitation is 90%. New ice accumulation of less than a 0.1 of an inch possible.

    Low: 32 °F

    Chance
    Rain/Freezing
    Rain then
    Rain

  • Monday

    Monday: Rain.  High near 50. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 50 °F

    Rain

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 25.

    Low: 25 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 33.

    High: 33 °F

    Partly Sunny

Detailed Forecast

Tonight
Snow. The snow could be heavy at times. Low around 20. Northeast wind 3 to 7 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 5 to 9 inches possible.
Saturday
Snow likely, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 33. Wind chill values between 15 and 25. Northeast wind 5 to 9 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday Night
Mostly clear, with a low around 16. Calm wind.
Sunday
Partly sunny, with a high near 39. Wind chill values between 15 and 25. Calm wind becoming west around 6 mph.
Sunday Night
A chance of freezing rain before 10pm, then rain. Temperature rising to around 39 by 5am. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 90%. New ice accumulation of less than a 0.1 of an inch possible.
Monday
Rain. High near 50. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 25.
Tuesday
Partly sunny, with a high near 33.
Tuesday Night
Mostly cloudy, with a low around 24.
Wednesday
Mostly sunny, with a high near 36.
Wednesday Night
Mostly cloudy, with a low around 21.
New Year's Day
Partly sunny, with a high near 33.
Thursday Night
Partly cloudy, with a low around 15.
Friday
Mostly sunny, with a high near 27.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
South Lyme CT
 41.32°N 72.29°W (Elev. 98 ft)
6:46 pm EST Dec 26, 2025
11pm EST Dec 26, 2025-6pm EST Jan 2, 2026
 
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Additional Resources

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