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

32°F

0°C

Humidity 79%
Wind Speed Calm
Barometer 30.11 in (1019.5 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 21 Nov 7:56 am EST
Extended Forecast for

Mystic CT

  • Today

    Today: Mostly cloudy, with a high near 51. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 51 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 50 percent chance of rain after 1am. Mostly cloudy, with a low around 40. West wind around 6 mph becoming light and variable.

    Low: 40 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: A 30 percent chance of rain, mainly before 10am. Cloudy through mid morning, then gradual clearing, with a high near 50. Northwest wind 6 to 10 mph.

    High: 50 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29. Northwest wind 5 to 7 mph.

    Low: 29 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 47. Northwest wind 5 to 9 mph becoming west in the afternoon.

    High: 47 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 54.

    High: 54 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Today
Mostly cloudy, with a high near 51. Light southwest wind increasing to 5 to 10 mph in the morning.
Tonight
A 50 percent chance of rain after 1am. Mostly cloudy, with a low around 40. West wind around 6 mph becoming light and variable.
Saturday
A 30 percent chance of rain, mainly before 10am. Cloudy through mid morning, then gradual clearing, with a high near 50. Northwest wind 6 to 10 mph.
Saturday Night
Mostly clear, with a low around 29. Northwest wind 5 to 7 mph.
Sunday
Mostly sunny, with a high near 47. Northwest wind 5 to 9 mph becoming west in the afternoon.
Sunday Night
Partly cloudy, with a low around 34.
Monday
Sunny, with a high near 51.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 54.
Tuesday Night
Rain likely. Cloudy, with a low around 47. Chance of precipitation is 70%.
Wednesday
A 50 percent chance of rain. Mostly cloudy, with a high near 58.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 43.
Thanksgiving Day
A 30 percent chance of rain. Partly sunny, with a high near 53.
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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:
6:27 am EST Nov 21, 2025
Forecast Valid:
8am EST Nov 21, 2025-6pm EST Nov 27, 2025
 
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