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

33°F

1°C

Humidity 92%
Wind Speed N 3 mph
Barometer 30.23 in (1023.6 mb)
Dewpoint 31°F (-1°C)
Visibility 8.00 mi
Last update 5 Mar 6:56 am EST
Extended Forecast for

Mystic CT

  • Today

    Today: Rain, mainly after 8am. Patchy fog. High near 40. Calm wind becoming northeast around 6 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 40 °F

    Rain and
    Patchy Fog

  • Tonight

    Tonight: Rain. Patchy fog. Low around 33. Northeast wind 7 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 33 °F

    Rain and
    Patchy Fog

  • Friday

    Friday: Rain, mainly before 7am. Patchy fog before 10am. High near 40. Northeast wind 8 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 40 °F

    Rain and
    Patchy Fog
    then Chance
    Rain

  • Friday Night

    Friday Night: Cloudy, with a low around 33. Northeast wind 5 to 7 mph becoming calm in the evening.

    Low: 33 °F

    Cloudy

  • Saturday

    Saturday: Cloudy, with a high near 48. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 48 °F

    Cloudy

  • Saturday Night

    Saturday Night: A 50 percent chance of showers. Cloudy, with a low around 42.

    Low: 42 °F

    Chance
    Showers

  • Sunday

    Sunday: Cloudy, then gradually becoming mostly sunny, with a high near 54.

    High: 54 °F

    Decreasing
    Clouds

  • Sunday Night

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

    Low: 37 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

Detailed Forecast

Today
Rain, mainly after 8am. Patchy fog. High near 40. Calm wind becoming northeast around 6 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain. Patchy fog. Low around 33. Northeast wind 7 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
Rain, mainly before 7am. Patchy fog before 10am. High near 40. Northeast wind 8 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Cloudy, with a low around 33. Northeast wind 5 to 7 mph becoming calm in the evening.
Saturday
Cloudy, with a high near 48. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Saturday Night
A 50 percent chance of showers. Cloudy, with a low around 42.
Sunday
Cloudy, then gradually becoming mostly sunny, with a high near 54.
Sunday Night
Partly cloudy, with a low around 37.
Monday
Sunny, with a high near 53.
Monday Night
Partly cloudy, with a low around 40.
Tuesday
Mostly sunny, with a high near 58.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
Cloudy, with a high near 53.
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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:
6:25 am EST Mar 5, 2026
Forecast Valid:
7am EST Mar 5, 2026-6pm EDT Mar 11, 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