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.

Fair

42°F

6°C

Humidity 73%
Wind Speed W 12 mph
Barometer 29.88 in (1011.9 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 4 Nov 5:56 am EST
Extended Forecast for

Mystic CT

  • Today

    Today: Sunny, with a high near 57. Northwest wind 15 to 18 mph, with gusts as high as 36 mph.

    High: 57 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 40. West wind 6 to 10 mph, with gusts as high as 25 mph.

    Low: 40 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 61. Southwest wind 5 to 15 mph, with gusts as high as 30 mph.

    High: 61 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain before 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 42. Breezy, with a southwest wind 17 to 20 mph becoming northwest after midnight. Winds could gust as high as 40 mph.

    Low: 42 °F

    Chance Rain
    and Breezy

  • Thursday

    Thursday: Sunny, with a high near 53. Northwest wind 14 to 16 mph, with gusts as high as 32 mph.

    High: 53 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

  • Friday Night

    Friday Night: Rain likely, mainly after 1am. Cloudy, with a low around 51. Chance of precipitation is 70%.

    Low: 51 °F

    Chance Rain
    then Rain
    Likely

  • Saturday

    Saturday: A 50 percent chance of rain before 1pm. Partly sunny, with a high near 61.

    High: 61 °F

    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 57. Northwest wind 15 to 18 mph, with gusts as high as 36 mph.
Tonight
Mostly clear, with a low around 40. West wind 6 to 10 mph, with gusts as high as 25 mph.
Wednesday
Increasing clouds, with a high near 61. Southwest wind 5 to 15 mph, with gusts as high as 30 mph.
Wednesday Night
A 30 percent chance of rain before 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 42. Breezy, with a southwest wind 17 to 20 mph becoming northwest after midnight. Winds could gust as high as 40 mph.
Thursday
Sunny, with a high near 53. Northwest wind 14 to 16 mph, with gusts as high as 32 mph.
Thursday Night
Mostly clear, with a low around 33.
Friday
Partly sunny, with a high near 59.
Friday Night
Rain likely, mainly after 1am. Cloudy, with a low around 51. Chance of precipitation is 70%.
Saturday
A 50 percent chance of rain before 1pm. Partly sunny, with a high near 61.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
A 40 percent chance of rain. Partly sunny, with a high near 57.
Sunday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 38.
Monday
A 30 percent chance of rain. Partly sunny, with a high near 48.
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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 am EST Nov 4, 2025
Forecast Valid:
6am EST Nov 4, 2025-6pm EST Nov 10, 2025
 
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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