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

42°F

6°C

Humidity 45%
Wind Speed N 6 mph
Barometer 30.19 in (1022.2 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 19 Nov 4:56 pm EST
Extended Forecast for

Mystic CT

  • Tonight

    Tonight: Areas of frost between 9pm and 1am. Otherwise, increasing clouds, with a low around 31. Light north wind.

    Low: 31 °F

    Areas Frost

  • Thursday

    Thursday: Partly sunny, with a high near 47. North wind around 5 mph becoming calm in the afternoon.

    High: 47 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of rain after 4pm. Mostly cloudy, with a high near 53. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 53 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Friday Night

    Friday Night: A 50 percent chance of rain, mainly after 7pm. Cloudy, with a low around 41. Southwest wind around 6 mph.

    Low: 41 °F

    Chance Rain

  • Saturday

    Saturday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

Tonight
Areas of frost between 9pm and 1am. Otherwise, increasing clouds, with a low around 31. Light north wind.
Thursday
Partly sunny, with a high near 47. North wind around 5 mph becoming calm in the afternoon.
Thursday Night
Partly cloudy, with a low around 32. Calm wind.
Friday
A 20 percent chance of rain after 4pm. Mostly cloudy, with a high near 53. Light southwest wind increasing to 5 to 10 mph in the morning.
Friday Night
A 50 percent chance of rain, mainly after 7pm. Cloudy, with a low around 41. Southwest wind around 6 mph.
Saturday
Partly sunny, with a high near 51.
Saturday Night
Partly cloudy, with a low around 30.
Sunday
Mostly sunny, with a high near 47.
Sunday Night
Partly cloudy, with a low around 37.
Monday
Mostly sunny, with a high near 53.
Monday Night
Partly cloudy, with a low around 37.
Tuesday
Partly sunny, with a high near 53.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 41.
Wednesday
A 40 percent chance of rain. Mostly cloudy, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mystic CT
 41.35°N 71.96°W (Elev. 0 ft)
Last Update:
12:56 pm EST Nov 19, 2025
Forecast Valid:
5pm EST Nov 19, 2025-6pm EST Nov 26, 2025
 
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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