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.

A Few Clouds

54°F

12°C

Humidity 53%
Wind Speed NW 16 G 24 mph
Barometer 29.85 in (1010.6 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 21 Mar 11:56 am EDT
Extended Forecast for

Mystic CT

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 55. Northwest wind around 8 mph.

    High: 55 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 37. Light and variable wind.

    Low: 37 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of rain before 8am, then a chance of rain after 2pm. Mostly cloudy, with a high near 51. Southwest wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 51 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday Night

    Sunday Night: Rain, mainly after 8pm. Low around 35. Light and variable wind becoming north around 6 mph after midnight. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 35 °F

    Rain

  • Monday

    Monday: A chance of rain and snow before 2pm. Mostly cloudy, with a high near 43. North wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    High: 43 °F

    Chance
    Rain/Snow

  • Monday Night

    Monday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 43.

    High: 43 °F

    Sunny

  • Tuesday Night

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

    Low: 32 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 55. Northwest wind around 8 mph.
Tonight
Mostly cloudy, with a low around 37. Light and variable wind.
Sunday
A slight chance of rain before 8am, then a chance of rain after 2pm. Mostly cloudy, with a high near 51. Southwest wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Sunday Night
Rain, mainly after 8pm. Low around 35. Light and variable wind becoming north around 6 mph after midnight. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Monday
A chance of rain and snow before 2pm. Mostly cloudy, with a high near 43. North wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Sunny, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
Partly sunny, with a high near 48.
Wednesday Night
Mostly cloudy, with a low around 33.
Thursday
Partly sunny, with a high near 46.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 36.
Friday
A 40 percent chance of rain. Partly sunny, with a high near 48.
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:
9:57 am EDT Mar 21, 2026
Forecast Valid:
12pm EDT Mar 21, 2026-6pm EDT Mar 27, 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