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

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

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

27°F

-3°C

Humidity 96%
Wind Speed NW 3 mph
Barometer 29.93 in (1013.5 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 6 Dec 9:56 pm EST
Extended Forecast for

Mystic CT

  • Tonight

    Tonight: Mostly clear, with a low around 26. Northwest wind 3 to 5 mph.

    Low: 26 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 41. Light and variable wind becoming north around 6 mph in the afternoon.

    High: 41 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 23. Light and variable wind becoming northwest 5 to 8 mph in the evening. Winds could gust as high as 20 mph.

    Low: 23 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 31. Wind chill values between 15 and 20. North wind 10 to 13 mph, with gusts as high as 23 mph.

    High: 31 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 13. North wind 3 to 7 mph.

    Low: 13 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 41.

    High: 41 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of rain after 1pm. Mostly cloudy, with a high near 48.

    High: 48 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 33.

    Low: 33 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 26. Northwest wind 3 to 5 mph.
Sunday
Partly sunny, with a high near 41. Light and variable wind becoming north around 6 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 23. Light and variable wind becoming northwest 5 to 8 mph in the evening. Winds could gust as high as 20 mph.
Monday
Sunny, with a high near 31. Wind chill values between 15 and 20. North wind 10 to 13 mph, with gusts as high as 23 mph.
Monday Night
Partly cloudy, with a low around 13. North wind 3 to 7 mph.
Tuesday
Increasing clouds, with a high near 41.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
A 40 percent chance of rain after 1pm. Mostly cloudy, with a high near 48.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 33.
Thursday
A 30 percent chance of rain before 1pm. Partly sunny, with a high near 44.
Thursday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 28.
Friday
A chance of rain and snow. Partly sunny, with a high near 41. Chance of precipitation is 30%.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 23.
Saturday
A 30 percent chance of snow. Partly sunny, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mystic CT
 41.35°N 71.96°W (Elev. 0 ft)
Last Update:
4:40 pm EST Dec 6, 2025
Forecast Valid:
10pm EST Dec 6, 2025-6pm EST Dec 13, 2025
 
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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