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

75°F

24°C

Humidity 58%
Wind Speed N 6 mph
Barometer 30.05 in (1017.7 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 18 Jul 7:56 pm EDT
Extended Forecast for

Mystic CT

  • Tonight

    Tonight: Mostly clear, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 79. Calm wind becoming south 5 to 8 mph in the morning.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers, then a chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 70. South wind around 6 mph. Chance of precipitation is 40%.

    Low: 70 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80. South wind 6 to 9 mph.

    High: 80 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 64. North wind around 6 mph.

    Low: 64 °F

    Chance
    Showers then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 61. Calm wind.
Saturday
Sunny, with a high near 79. Calm wind becoming south 5 to 8 mph in the morning.
Saturday Night
A slight chance of showers, then a chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 70. South wind around 6 mph. Chance of precipitation is 40%.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80. South wind 6 to 9 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 64. North wind around 6 mph.
Monday
Sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 63.
Wednesday
Mostly sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 71.
Friday
Partly sunny, with a high near 84.
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:
1:40 pm EDT Jul 18, 2025
Forecast Valid:
8pm EDT Jul 18, 2025-6pm EDT Jul 25, 2025
 
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