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

25°F

-4°C

Humidity 35%
Wind Speed SW 6 mph
Barometer 30.65 in (1037.7 mb)
Dewpoint 1°F (-17°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 2 Mar 5:56 pm EST
Extended Forecast for

Mystic CT

  • Tonight

    Tonight: Mostly clear, with a low around 20. Calm wind.

    Low: 20 °F

    Mostly Clear

  • Tuesday

    Tuesday: Rain, possibly mixed with snow, becoming all rain after 4pm. High near 37. Wind chill values between 25 and 30. Calm wind becoming southeast 5 to 7 mph in the morning. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 37 °F

    Chance
    Rain/Snow
    then
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain. Low around 36. East wind around 6 mph becoming west after midnight. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 36 °F

    Rain

  • Wednesday

    Wednesday: Mostly sunny, with a high near 48. Light and variable wind.

    High: 48 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain between 1am and 4am, then a chance of freezing rain after 4am. Mostly cloudy, with a low around 31. Calm wind. Chance of precipitation is 30%.

    Low: 31 °F

    Mostly Cloudy
    then Chance
    Rain/Freezing
    Rain

  • Thursday

    Thursday: A chance of freezing rain before 7am, then a chance of rain. Cloudy, with a high near 45. Chance of precipitation is 30%.

    High: 45 °F

    Chance
    Rain/Freezing
    Rain then
    Chance Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly after 1am. Cloudy, with a low around 36. Chance of precipitation is 70%.

    Low: 36 °F

    Chance Rain
    then Rain
    Likely

  • Friday

    Friday: A 50 percent chance of rain. Mostly cloudy, with a high near 44.

    High: 44 °F

    Chance Rain

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 20. Calm wind.
Tuesday
Rain, possibly mixed with snow, becoming all rain after 4pm. High near 37. Wind chill values between 25 and 30. Calm wind becoming southeast 5 to 7 mph in the morning. Chance of precipitation is 90%. Little or no snow accumulation expected.
Tuesday Night
Rain. Low around 36. East wind around 6 mph becoming west after midnight. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Mostly sunny, with a high near 48. Light and variable wind.
Wednesday Night
A chance of rain between 1am and 4am, then a chance of freezing rain after 4am. Mostly cloudy, with a low around 31. Calm wind. Chance of precipitation is 30%.
Thursday
A chance of freezing rain before 7am, then a chance of rain. Cloudy, with a high near 45. Chance of precipitation is 30%.
Thursday Night
Rain likely, mainly after 1am. Cloudy, with a low around 36. Chance of precipitation is 70%.
Friday
A 50 percent chance of rain. Mostly cloudy, with a high near 44.
Friday Night
Mostly cloudy, with a low around 34.
Saturday
Mostly cloudy, with a high near 49.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 41.
Sunday
A 30 percent chance of rain. Mostly cloudy, with a high near 56.
Sunday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 41.
Monday
Mostly cloudy, with a high near 55.
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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:
1:04 pm EST Mar 2, 2026
Forecast Valid:
6pm EST Mar 2, 2026-6pm EDT Mar 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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