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.

Fair

25°F

-4°C

Humidity 85%
Wind Speed Calm
Barometer 30.23 in (1023.7 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 24 Dec 11:56 pm EST
Extended Forecast for

Mystic CT

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 30. Calm wind becoming southwest around 6 mph.

    Low: 30 °F

    Mostly Cloudy

  • Christmas Day

    Christmas Day: Partly sunny, with a high near 42. Wind chill values between 25 and 35. Southwest wind 8 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 28 mph.

    High: 42 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 16. Wind chill values between 5 and 15. North wind around 15 mph, with gusts as high as 26 mph.

    Low: 16 °F

    Partly Cloudy

  • Friday

    Friday: Increasing clouds, with a high near 28. Wind chill values between zero and 10. North wind 5 to 13 mph.

    High: 28 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Snow likely. Cloudy, with a low around 20. Calm wind becoming northeast around 6 mph after midnight. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Low: 20 °F

    Snow Likely

  • Saturday

    Saturday: A 40 percent chance of snow before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 32.

    High: 32 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 19.

    Low: 19 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Rain. Low around 30. Chance of precipitation is 80%.

    Low: 30 °F

    Rain

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 30. Calm wind becoming southwest around 6 mph.
Christmas Day
Partly sunny, with a high near 42. Wind chill values between 25 and 35. Southwest wind 8 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 28 mph.
Thursday Night
Partly cloudy, with a low around 16. Wind chill values between 5 and 15. North wind around 15 mph, with gusts as high as 26 mph.
Friday
Increasing clouds, with a high near 28. Wind chill values between zero and 10. North wind 5 to 13 mph.
Friday Night
Snow likely. Cloudy, with a low around 20. Calm wind becoming northeast around 6 mph after midnight. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Saturday
A 40 percent chance of snow before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 32.
Saturday Night
Partly cloudy, with a low around 19.
Sunday
Partly sunny, with a high near 39.
Sunday Night
Rain. Low around 30. Chance of precipitation is 80%.
Monday
Rain likely, mainly before 1pm. Mostly cloudy, with a high near 43. Chance of precipitation is 70%.
Monday Night
Partly cloudy, with a low around 23.
Tuesday
Partly sunny, with a high near 31.
Tuesday Night
Partly cloudy, with a low around 21.
Wednesday
Partly sunny, with a high near 36.
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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:
10:07 pm EST Dec 24, 2025
Forecast Valid:
12am EST Dec 25, 2025-6pm EST Dec 31, 2025
 
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Additional Resources

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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