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

46°F

8°C

Humidity 89%
Wind Speed S 9 mph
Barometer 30.15 in (1020.7 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 3 Apr 4:56 pm EDT
Extended Forecast for

Mystic CT

  • Tonight

    Tonight: Widespread dense fog, mainly between 8pm and 2am. Otherwise, mostly cloudy, with a low around 49. Southwest wind 6 to 8 mph, with gusts as high as 20 mph.

    Low: 49 °F

    Dense Fog

  • Saturday

    Saturday: Areas of fog before 8am. Otherwise, mostly sunny, with a high near 61. Light and variable wind becoming east 5 to 10 mph in the morning.

    High: 61 °F

    Areas Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 39. East wind 6 to 9 mph, with gusts as high as 21 mph.

    Low: 39 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then showers after 2pm. High near 56. Southwest wind 9 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 56 °F

    Showers

  • Sunday Night

    Sunday Night: Showers, mainly before 8pm. Low around 38. Northwest wind 6 to 8 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Showers then
    Slight Chance
    Showers

  • Monday

    Monday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

  • Monday Night

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

    Low: 36 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of rain and snow showers before 2pm. Mostly sunny, with a high near 48. Chance of precipitation is 30%.

    High: 48 °F

    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

Detailed Forecast

Tonight
Widespread dense fog, mainly between 8pm and 2am. Otherwise, mostly cloudy, with a low around 49. Southwest wind 6 to 8 mph, with gusts as high as 20 mph.
Saturday
Areas of fog before 8am. Otherwise, mostly sunny, with a high near 61. Light and variable wind becoming east 5 to 10 mph in the morning.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 39. East wind 6 to 9 mph, with gusts as high as 21 mph.
Sunday
Showers likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then showers after 2pm. High near 56. Southwest wind 9 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers, mainly before 8pm. Low around 38. Northwest wind 6 to 8 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Sunny, with a high near 52.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
A chance of rain and snow showers before 2pm. Mostly sunny, with a high near 48. Chance of precipitation is 30%.
Tuesday Night
Mostly clear, with a low around 28.
Wednesday
Sunny, with a high near 46.
Wednesday Night
Mostly clear, with a low around 34.
Thursday
Mostly sunny, with a high near 52.
Thursday Night
Partly cloudy, with a low around 41.
Friday
Mostly sunny, with a high near 59.
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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:
2:23 pm EDT Apr 3, 2026
Forecast Valid:
5pm EDT Apr 3, 2026-6pm EDT Apr 10, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation