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

31°F

-1°C

Humidity 96%
Wind Speed N 3 mph
Barometer 30.00 in (1016.0 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 9 Mar 6:56 am EDT
Extended Forecast for

Mystic CT

  • Today

    Today: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 54. Calm wind becoming south 5 to 8 mph in the morning.

    High: 54 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 37. Light and variable wind.

    Low: 37 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 56. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 56 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 38. Light southwest wind.

    Low: 38 °F

    Patchy Fog

  • Wednesday

    Wednesday: A 20 percent chance of showers after 2pm. Cloudy, with a high near 53. Light southeast wind becoming south 5 to 9 mph in the morning.

    High: 53 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance Rain

  • Thursday

    Thursday: Rain likely before 2pm, then a chance of rain and snow. Mostly cloudy, with a high near 55. Chance of precipitation is 60%.

    High: 55 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: A chance of rain and snow before 8pm. Partly cloudy, with a low around 28. Chance of precipitation is 30%.

    Low: 28 °F

    Chance
    Rain/Snow
    then Mostly
    Clear

  • Friday

    Friday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 54. Calm wind becoming south 5 to 8 mph in the morning.
Tonight
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 37. Light and variable wind.
Tuesday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 56. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Tuesday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 38. Light southwest wind.
Wednesday
A 20 percent chance of showers after 2pm. Cloudy, with a high near 53. Light southeast wind becoming south 5 to 9 mph in the morning.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 45.
Thursday
Rain likely before 2pm, then a chance of rain and snow. Mostly cloudy, with a high near 55. Chance of precipitation is 60%.
Thursday Night
A chance of rain and snow before 8pm. Partly cloudy, with a low around 28. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 43.
Friday Night
A 50 percent chance of rain after 8pm. Mostly cloudy, with a low around 34.
Saturday
Mostly sunny, with a high near 46.
Saturday Night
Mostly cloudy, with a low around 29.
Sunday
A 30 percent chance of rain. Mostly cloudy, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mystic CT
 41.35°N 71.96°W (Elev. 0 ft)
Last Update:
7:50 am EDT Mar 9, 2026
Forecast Valid:
7am EDT Mar 9, 2026-6pm EDT Mar 15, 2026
 
Forecast Discussion
 
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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