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

40°F

4°C

Humidity 83%
Wind Speed SE 7 mph
Barometer 30.04 in (1017.2 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 28 Feb 4:56 pm EST
Extended Forecast for

Mystic CT

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. East wind around 6 mph becoming calm in the evening.

    Low: 27 °F

    Mostly Cloudy

  • Sunday

    Sunday: Snow likely, mainly between 10am and 1pm. Cloudy, with a high near 37. Wind chill values between 20 and 30. North wind 5 to 7 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 37 °F

    Snow Likely

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 12. Wind chill values between 5 and 10. North wind around 6 mph.

    Low: 12 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 29. Wind chill values between 5 and 15. North wind around 6 mph becoming calm in the afternoon.

    High: 29 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 17. Calm wind.

    Low: 17 °F

    Mostly Clear

  • Tuesday

    Tuesday: Rain likely after 1pm. Increasing clouds, with a high near 42. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 42 °F

    Partly Sunny
    then Rain
    Likely

  • Tuesday Night

    Tuesday Night: Rain. Low around 36. Chance of precipitation is 90%.

    Low: 36 °F

    Rain

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 47.

    High: 47 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain after 1am. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Tonight
Mostly cloudy, with a low around 27. East wind around 6 mph becoming calm in the evening.
Sunday
Snow likely, mainly between 10am and 1pm. Cloudy, with a high near 37. Wind chill values between 20 and 30. North wind 5 to 7 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Sunday Night
Mostly clear, with a low around 12. Wind chill values between 5 and 10. North wind around 6 mph.
Monday
Sunny, with a high near 29. Wind chill values between 5 and 15. North wind around 6 mph becoming calm in the afternoon.
Monday Night
Mostly clear, with a low around 17. Calm wind.
Tuesday
Rain likely after 1pm. Increasing clouds, with a high near 42. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Rain. Low around 36. Chance of precipitation is 90%.
Wednesday
Mostly cloudy, with a high near 47.
Wednesday Night
A 40 percent chance of rain after 1am. Mostly cloudy, with a low around 34.
Thursday
A 40 percent chance of rain. Cloudy, with a high near 49.
Thursday Night
A 50 percent chance of rain. Cloudy, with a low around 38.
Friday
A 40 percent chance of rain. Cloudy, with a high near 48.
Friday Night
A 30 percent chance of rain. Cloudy, with a low around 37.
Saturday
Mostly cloudy, with a high near 53.
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:
3:08 pm EST Feb 28, 2026
Forecast Valid:
5pm EST Feb 28, 2026-6pm EST Mar 7, 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