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.

Overcast

42°F

6°C

Humidity 92%
Wind Speed S 9 mph
Barometer 29.34 in (993.6 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 15 Jan 6:56 am EST
Extended Forecast for

Mystic CT

  • Today

    Today: Mostly cloudy, with a temperature rising to near 43 by 10am, then falling to around 36 during the remainder of the day. Southwest wind 6 to 13 mph, with gusts as high as 25 mph.

    High: 43 °F⇓

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 21. Wind chill values between 10 and 20. West wind 10 to 13 mph, with gusts as high as 30 mph.

    Low: 21 °F

    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 35. Wind chill values between 10 and 20. West wind 10 to 16 mph, with gusts as high as 30 mph.

    High: 35 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 29. Southwest wind around 6 mph.

    Low: 29 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of snow before 10am, then a slight chance of rain and snow between 10am and 1pm, then a chance of rain after 1pm. Mostly cloudy, with a high near 42. Southwest wind 5 to 8 mph. Chance of precipitation is 40%.

    High: 42 °F

    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 50 percent chance of snow. Mostly cloudy, with a high near 39.

    High: 39 °F

    Chance Snow

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before 1am. Mostly cloudy, with a low around 21.

    Low: 21 °F

    Chance Snow

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a temperature rising to near 43 by 10am, then falling to around 36 during the remainder of the day. Southwest wind 6 to 13 mph, with gusts as high as 25 mph.
Tonight
Mostly cloudy, with a low around 21. Wind chill values between 10 and 20. West wind 10 to 13 mph, with gusts as high as 30 mph.
Friday
Sunny, with a high near 35. Wind chill values between 10 and 20. West wind 10 to 16 mph, with gusts as high as 30 mph.
Friday Night
Mostly cloudy, with a low around 29. Southwest wind around 6 mph.
Saturday
A slight chance of snow before 10am, then a slight chance of rain and snow between 10am and 1pm, then a chance of rain after 1pm. Mostly cloudy, with a high near 42. Southwest wind 5 to 8 mph. Chance of precipitation is 40%.
Saturday Night
Mostly cloudy, with a low around 30.
Sunday
A 50 percent chance of snow. Mostly cloudy, with a high near 39.
Sunday Night
A 30 percent chance of snow before 1am. Mostly cloudy, with a low around 21.
M.L.King Day
Mostly sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 16.
Tuesday
Mostly sunny, with a high near 25.
Tuesday Night
Partly cloudy, with a low around 12.
Wednesday
Mostly sunny, with a high near 27.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mystic CT
 41.35°N 71.96°W (Elev. 0 ft)
Last Update:
5:52 am EST Jan 15, 2026
Forecast Valid:
7am EST Jan 15, 2026-6pm EST Jan 21, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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