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

Hazardous Weather Conditions

Current conditions at

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

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Overcast

30°F

-1°C

Humidity 85%
Wind Speed E 8 mph
Barometer 30.15 in (1021.1 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 22 Feb 3:56 am EST
Extended Forecast for

2 Miles SSE South Lyme CT

Coastal Flood Advisory February 22, 11:00pm until February 23, 05:00am
Blizzard Warning February 22, 01:00pm until February 23, 06:00pm
Click here for hazard details and duration
Coastal Flood Advisory
Blizzard Warning

  • Overnight

    Overnight: A 20 percent chance of snow. Cloudy, with a low around 28. East wind around 6 mph.

    Low: 28 °F

    Slight Chance
    Snow

  • Sunday

    Sunday: A slight chance of snow before 7am, then snow likely after 10am. Cloudy, with a high near 37. Wind chill values between 20 and 25. East wind 8 to 15 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Slight Chance
    Snow then
    Snow Likely

  • Sunday Night

    Sunday Night: Snow. The snow could be heavy at times. Areas of blowing snow after 10pm. Low around 29. Wind chill values between 15 and 25. Windy, with a northeast wind 21 to 26 mph increasing to 28 to 33 mph after midnight. Winds could gust as high as 49 mph. Chance of precipitation is 100%. New snow accumulation of 9 to 13 inches possible.

    Low: 29 °F

    Heavy Snow
    and Areas
    Blowing Snow

  • Monday

    Monday: Snow, mainly before 4pm. The snow could be heavy at times. Areas of blowing snow before 4pm. High near 33. Wind chill values between 15 and 20. Windy, with a north wind 25 to 34 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    High: 33 °F

    Heavy Snow
    and Areas
    Blowing Snow

  • Monday Night

    Monday Night: A 30 percent chance of snow, mainly before 7pm. Mostly cloudy, with a low around 22. Blustery, with a northwest wind 15 to 24 mph, with gusts as high as 34 mph.

    Low: 22 °F

    Chance Snow
    and Blustery

  • Tuesday

    Tuesday: Sunny, with a high near 31.

    High: 31 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Snow likely before 1pm, then a chance of rain. Mostly cloudy, with a high near 39. Chance of precipitation is 60%.

    High: 39 °F

    Snow Likely
    then Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain. Partly cloudy, with a low around 29.

    Low: 29 °F

    Chance Rain

Detailed Forecast

Overnight
A 20 percent chance of snow. Cloudy, with a low around 28. East wind around 6 mph.
Sunday
A slight chance of snow before 7am, then snow likely after 10am. Cloudy, with a high near 37. Wind chill values between 20 and 25. East wind 8 to 15 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Sunday Night
Snow. The snow could be heavy at times. Areas of blowing snow after 10pm. Low around 29. Wind chill values between 15 and 25. Windy, with a northeast wind 21 to 26 mph increasing to 28 to 33 mph after midnight. Winds could gust as high as 49 mph. Chance of precipitation is 100%. New snow accumulation of 9 to 13 inches possible.
Monday
Snow, mainly before 4pm. The snow could be heavy at times. Areas of blowing snow before 4pm. High near 33. Wind chill values between 15 and 20. Windy, with a north wind 25 to 34 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Monday Night
A 30 percent chance of snow, mainly before 7pm. Mostly cloudy, with a low around 22. Blustery, with a northwest wind 15 to 24 mph, with gusts as high as 34 mph.
Tuesday
Sunny, with a high near 31.
Tuesday Night
Mostly cloudy, with a low around 18.
Wednesday
Snow likely before 1pm, then a chance of rain. Mostly cloudy, with a high near 39. Chance of precipitation is 60%.
Wednesday Night
A 30 percent chance of rain. Partly cloudy, with a low around 29.
Thursday
A 40 percent chance of rain. Partly sunny, with a high near 41.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 31.
Friday
A 30 percent chance of rain. Partly sunny, with a high near 40.
Friday Night
Mostly clear, with a low around 25.
Saturday
Mostly sunny, with a high near 42.
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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:
2:07 am EST Feb 22, 2026
Forecast Valid:
4am EST Feb 22, 2026-6pm EST Feb 28, 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