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

44°F

7°C

Humidity 89%
Wind Speed SE 6 mph
Barometer 29.38 in (995.0 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 15 Jan 2:56 am EST
Extended Forecast for

Mystic CT

  • Overnight

    Overnight: A 20 percent chance of showers before 4am. Cloudy, with a steady temperature around 42. South wind 3 to 5 mph.

    Low: 42 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: 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

  • Thursday Night

    Thursday Night: 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 40 percent chance of rain after 1pm. Mostly cloudy, with a high near 42.

    High: 42 °F

    Mostly Cloudy
    then Chance
    Rain

  • 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

Detailed Forecast

Overnight
A 20 percent chance of showers before 4am. Cloudy, with a steady temperature around 42. South wind 3 to 5 mph.
Thursday
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.
Thursday Night
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 40 percent chance of rain after 1pm. Mostly cloudy, with a high near 42.
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:
2:03 am EST Jan 15, 2026
Forecast Valid:
3am 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