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

23°F

-5°C

Humidity 92%
Wind Speed N 3 mph
Barometer 30.16 in (1021.3 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 27 Feb 11:56 pm EST
Extended Forecast for

Mystic CT

  • Overnight

    Overnight: 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

Overnight
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:
12am EST Feb 28, 2026-6pm EST Mar 6, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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