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.

Light Rain

38°F

3°C

Humidity 89%
Wind Speed NE 10 mph
Barometer 30.30 in (1026.1 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 5 Mar 7:56 pm EST
Extended Forecast for

Mystic CT

  • Tonight

    Tonight: Rain. Low around 33. Northeast wind 7 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 33 °F

    Rain

  • Friday

    Friday: Rain likely, mainly before 7am. Cloudy, with a high near 40. Northeast wind 7 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 40 °F

    Rain Likely
    then Cloudy

  • Friday Night

    Friday Night: Patchy fog. Otherwise, cloudy, with a low around 32. Northeast wind around 5 mph becoming calm in the evening.

    Low: 32 °F

    Patchy Fog

  • Saturday

    Saturday: Cloudy, with a high near 48. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 48 °F

    Cloudy

  • Saturday Night

    Saturday Night: Rain likely, mainly after 1am. Cloudy, with a steady temperature around 44. Southwest wind 6 to 8 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    Low: 44 °F

    Rain Likely

  • Sunday

    Sunday: Cloudy, then gradually becoming mostly sunny, with a high near 55.

    High: 55 °F

    Decreasing
    Clouds

  • Sunday Night

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

    Low: 37 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Tonight
Rain. Low around 33. Northeast wind 7 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
Rain likely, mainly before 7am. Cloudy, with a high near 40. Northeast wind 7 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Patchy fog. Otherwise, cloudy, with a low around 32. Northeast wind around 5 mph becoming calm in the evening.
Saturday
Cloudy, with a high near 48. Calm wind becoming southwest around 6 mph in the afternoon.
Saturday Night
Rain likely, mainly after 1am. Cloudy, with a steady temperature around 44. Southwest wind 6 to 8 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Sunday
Cloudy, then gradually becoming mostly sunny, with a high near 55.
Sunday Night
Partly cloudy, with a low around 37.
Monday
Mostly sunny, with a high near 54.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Mostly sunny, with a high near 58.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 54.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 40.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 50.
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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:
1:01 pm EST Mar 5, 2026
Forecast Valid:
8pm EST Mar 5, 2026-6pm EDT Mar 12, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation