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

38°F

3°C

Humidity 70%
Wind Speed S 12 mph
Barometer 30.20 in (1022.6 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 19 Mar 4:56 pm EDT
Extended Forecast for

Mystic CT

  • Tonight

    Tonight: Partly cloudy, with a low around 31. South wind around 5 mph becoming calm in the evening.

    Low: 31 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of rain after 2pm. Increasing clouds, with a high near 48. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 48 °F

    Sunny then
    Chance Rain

  • Friday Night

    Friday Night: Rain likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 39. Southwest wind 7 to 10 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 39 °F

    Rain Likely

  • Saturday

    Saturday: A 30 percent chance of rain before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 54. Northwest wind around 7 mph.

    High: 54 °F

    Chance Rain
    then Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 36. Light and variable wind.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 51.

    High: 51 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Rain likely, mainly after 2am. Mostly cloudy, with a low around 37. Chance of precipitation is 60%.

    Low: 37 °F

    Rain Likely

  • Monday

    Monday: Rain likely, mainly before 8am. Mostly cloudy, with a high near 49. Chance of precipitation is 60%.

    High: 49 °F

    Rain Likely
    then Chance
    Rain

  • Monday Night

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

    Low: 28 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 31. South wind around 5 mph becoming calm in the evening.
Friday
A 30 percent chance of rain after 2pm. Increasing clouds, with a high near 48. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 22 mph.
Friday Night
Rain likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 39. Southwest wind 7 to 10 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
A 30 percent chance of rain before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 54. Northwest wind around 7 mph.
Saturday Night
Mostly cloudy, with a low around 36. Light and variable wind.
Sunday
Mostly cloudy, with a high near 51.
Sunday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 37. Chance of precipitation is 60%.
Monday
Rain likely, mainly before 8am. Mostly cloudy, with a high near 49. Chance of precipitation is 60%.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Sunny, with a high near 43.
Tuesday Night
Partly cloudy, with a low around 30.
Wednesday
Partly sunny, with a high near 45.
Wednesday Night
Mostly cloudy, with a low around 29.
Thursday
Partly sunny, with a high near 46.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mystic CT
 41.35°N 71.96°W (Elev. 0 ft)
Last Update:
2:27 pm EDT Mar 19, 2026
Forecast Valid:
5pm EDT Mar 19, 2026-6pm EDT Mar 26, 2026
 
Forecast Discussion
 
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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