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.

Partly Cloudy

75°F

24°C

Humidity 71%
Wind Speed W 7 mph
Barometer 29.87 in (1011.5 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 3 Aug 8:56 pm EDT
Extended Forecast for

Mystic CT

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 62. Northwest wind 3 to 8 mph.

    Low: 62 °F

    Patchy Fog

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80. North wind 5 to 9 mph becoming south in the afternoon.

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 62. Light and variable wind.

    Low: 62 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78. Calm wind becoming southwest 5 to 8 mph in the morning.

    High: 78 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 68. South wind 5 to 7 mph becoming calm in the evening.

    Low: 68 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 62. Northwest wind 3 to 8 mph.
Tuesday
Mostly sunny, with a high near 80. North wind 5 to 9 mph becoming south in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 62. Light and variable wind.
Wednesday
Mostly sunny, with a high near 78. Calm wind becoming southwest 5 to 8 mph in the morning.
Wednesday Night
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 68. South wind 5 to 7 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
Partly cloudy, with a low around 71.
Friday
Sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 71.
Saturday
A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 82.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 70.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 70.
Monday
Sunny, with a high near 82.
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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:
6:39 pm EDT Aug 3, 2026
Forecast Valid:
9pm EDT Aug 3, 2026-6pm EDT Aug 10, 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