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.

Mostly Cloudy

35°F

2°C

Humidity 82%
Wind Speed E 5 mph
Barometer 30.11 in (1019.4 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 21 Feb 7:56 pm EST
Extended Forecast for

Mystic 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

  • Tonight

    Tonight: A chance of snow before 10pm, then a slight chance of snow after 4am. Mostly cloudy, with a low around 26. Northeast wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 26 °F

    Chance Snow

  • Sunday

    Sunday: A slight chance of snow before 7am, then a chance of snow after 1pm. Mostly cloudy, with a high near 37. Wind chill values between 20 and 30. East wind 6 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

    High: 37 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday Night

    Sunday Night: Snow. The snow could be heavy at times. Areas of blowing snow after 10pm. Steady temperature around 32. Wind chill values between 15 and 25. Windy, with a northeast wind 16 to 21 mph increasing to 25 to 30 mph after midnight. Winds could gust as high as 47 mph. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.

    Low: 32 °F

    Heavy Snow
    and Areas
    Blowing Snow

  • Monday

    Monday: Snow. The snow could be heavy at times. Areas of blowing snow. Steady temperature around 31. Wind chill values between 15 and 20. Windy, with a north wind 25 to 32 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.

    High: 31 °F

    Heavy Snow
    and Areas
    Blowing Snow

  • Monday Night

    Monday Night: A 50 percent chance of snow, mainly before 10pm. Areas of blowing snow before 1am. Mostly cloudy, with a low around 22. Blustery, with a northwest wind 16 to 21 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 34 mph.

    Low: 22 °F

    Chance Snow
    and Areas
    Blowing Snow

  • Tuesday

    Tuesday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 15.

    Low: 15 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: A 50 percent chance of rain after 1pm. Mostly cloudy, with a high near 39.

    High: 39 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday Night

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

    Low: 30 °F

    Chance Rain

Detailed Forecast

Tonight
A chance of snow before 10pm, then a slight chance of snow after 4am. Mostly cloudy, with a low around 26. Northeast wind 3 to 6 mph. Chance of precipitation is 30%.
Sunday
A slight chance of snow before 7am, then a chance of snow after 1pm. Mostly cloudy, with a high near 37. Wind chill values between 20 and 30. East wind 6 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
Sunday Night
Snow. The snow could be heavy at times. Areas of blowing snow after 10pm. Steady temperature around 32. Wind chill values between 15 and 25. Windy, with a northeast wind 16 to 21 mph increasing to 25 to 30 mph after midnight. Winds could gust as high as 47 mph. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.
Monday
Snow. The snow could be heavy at times. Areas of blowing snow. Steady temperature around 31. Wind chill values between 15 and 20. Windy, with a north wind 25 to 32 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.
Monday Night
A 50 percent chance of snow, mainly before 10pm. Areas of blowing snow before 1am. Mostly cloudy, with a low around 22. Blustery, with a northwest wind 16 to 21 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 34 mph.
Tuesday
Mostly sunny, with a high near 31.
Tuesday Night
Increasing clouds, with a low around 15.
Wednesday
A 50 percent chance of rain after 1pm. Mostly cloudy, with a high near 39.
Wednesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 30.
Thursday
A 40 percent chance of rain. Partly sunny, with a high near 42.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 30.
Friday
A 40 percent chance of rain. Partly sunny, with a high near 40.
Friday Night
Mostly clear, with a low around 25.
Saturday
Sunny, with a high near 43.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mystic CT
 41.35°N 71.96°W (Elev. 0 ft)
Last Update:
3:48 pm EST Feb 21, 2026
Forecast Valid:
8pm EST Feb 21, 2026-6pm EST Feb 28, 2026
 
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