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

40°F

4°C

Humidity 68%
Wind Speed S 12 mph
Barometer 30.09 in (1018.9 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 17 Jan 6:56 am EST
Extended Forecast for

Mystic CT

  • Today

    Today: Rain likely, mainly after 4pm. Mostly cloudy, with a high near 43. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 43 °F

    Slight Chance
    Rain then
    Rain Likely

  • Tonight

    Tonight: Rain likely before 7pm, then a slight chance of rain after 4am. Mostly cloudy, with a low around 31. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 31 °F

    Rain Likely
    then Slight
    Chance Rain

  • Sunday

    Sunday: Snow likely, possibly mixed with rain, becoming all snow after 4pm. Cloudy, with a high near 37. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 37 °F

    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: A 40 percent chance of snow before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 22. Northwest wind 3 to 5 mph.

    Low: 22 °F

    Chance Snow

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 34. Southwest wind 7 to 14 mph, with gusts as high as 25 mph.

    High: 34 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 26.

    High: 26 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 14.

    Low: 14 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

Detailed Forecast

Today
Rain likely, mainly after 4pm. Mostly cloudy, with a high near 43. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Tonight
Rain likely before 7pm, then a slight chance of rain after 4am. Mostly cloudy, with a low around 31. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%.
Sunday
Snow likely, possibly mixed with rain, becoming all snow after 4pm. Cloudy, with a high near 37. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Sunday Night
A 40 percent chance of snow before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 22. Northwest wind 3 to 5 mph.
M.L.King Day
Mostly sunny, with a high near 34. Southwest wind 7 to 14 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 18.
Tuesday
Sunny, with a high near 26.
Tuesday Night
Mostly clear, with a low around 14.
Wednesday
Mostly sunny, with a high near 36.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
Partly sunny, with a high near 39.
Thursday Night
Mostly cloudy, with a low around 22.
Friday
Mostly sunny, with a high near 33.
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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:
4:17 am EST Jan 17, 2026
Forecast Valid:
7am EST Jan 17, 2026-6pm EST Jan 23, 2026
 
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Additional Resources

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Chance of Precipitation