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 92%
Wind Speed N 3 mph
Barometer 30.18 in (1021.9 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 27 Feb 10:56 pm EST
Extended Forecast for

Mystic CT

  • Tonight

    Tonight: Patchy fog before 1am, then patchy fog after 3am. Otherwise, partly cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 45. Light and variable wind becoming south around 6 mph.

    High: 45 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Patchy fog before midnight, then patchy fog after 3am. Otherwise, partly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Patchy Fog

  • Sunday

    Sunday: Snow showers likely, mainly between 10am and 4pm. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 39. Wind chill values between 25 and 35. Northwest wind 3 to 7 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Snow Showers
    Likely and
    Patchy Fog

  • Sunday Night

    Sunday Night: A 30 percent chance of snow showers before 7pm. Mostly clear, with a low around 14. Northwest wind around 6 mph.

    Low: 14 °F

    Chance Snow
    Showers then
    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 17.

    Low: 17 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of rain. Mostly cloudy, with a high near 42.

    High: 42 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Rain likely. Cloudy, with a low around 35. Chance of precipitation is 70%.

    Low: 35 °F

    Rain Likely

Detailed Forecast

Tonight
Patchy fog before 1am, then patchy fog after 3am. Otherwise, partly cloudy, with a low around 27. Calm wind.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 45. Light and variable wind becoming south around 6 mph.
Saturday Night
Patchy fog before midnight, then patchy fog after 3am. Otherwise, partly cloudy, with a low around 28. Calm wind.
Sunday
Snow showers likely, mainly between 10am and 4pm. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 39. Wind chill values between 25 and 35. Northwest wind 3 to 7 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Sunday Night
A 30 percent chance of snow showers before 7pm. Mostly clear, with a low around 14. Northwest wind around 6 mph.
Monday
Mostly sunny, with a high near 29.
Monday Night
Partly cloudy, with a low around 17.
Tuesday
A 40 percent chance of rain. Mostly cloudy, with a high near 42.
Tuesday Night
Rain likely. Cloudy, with a low around 35. Chance of precipitation is 70%.
Wednesday
A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 47.
Wednesday Night
Mostly cloudy, with a low around 32.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 45.
Thursday Night
Rain likely. Cloudy, with a low around 34. Chance of precipitation is 60%.
Friday
A 40 percent chance of rain. Cloudy, with a high near 43.
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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:
8:51 pm EST Feb 27, 2026
Forecast Valid:
11pm EST Feb 27, 2026-6pm EST Mar 6, 2026
 
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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