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.

Light Rain Fog/Mist

47°F

8°C

Humidity 100%
Wind Speed S 6 mph
Barometer 29.66 in (1004.4 mb)
Dewpoint 47°F (8°C)
Visibility 3.00 mi
Wind Chill44°F (7°C)
Last update 12 Mar 1:56 am EDT
Extended Forecast for

Mystic CT

  • Overnight

    Overnight: A 40 percent chance of showers. Mostly cloudy, with a low around 46. Southwest wind around 9 mph, with gusts as high as 23 mph.

    Low: 46 °F

    Chance
    Showers

  • Thursday

    Thursday: Rain showers likely before 5pm, then a chance of rain and snow showers. Cloudy, with a temperature falling to around 39 by 5pm. Southwest wind 9 to 14 mph becoming northwest in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 46 °F⇓

    Showers
    Likely then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: A chance of rain and snow showers before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 28. West wind 6 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 28 °F

    Chance
    Rain/Snow
    then Mostly
    Clear

  • Friday

    Friday: Increasing clouds, with a high near 43. Wind chill values between 25 and 35. Light and variable wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 21 mph.

    High: 43 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 36. South wind around 10 mph, with gusts as high as 25 mph.

    Low: 36 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 45.

    High: 45 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Showers likely, mainly after 2am. Cloudy, with a low around 37. Chance of precipitation is 70%.

    Low: 37 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Overnight
A 40 percent chance of showers. Mostly cloudy, with a low around 46. Southwest wind around 9 mph, with gusts as high as 23 mph.
Thursday
Rain showers likely before 5pm, then a chance of rain and snow showers. Cloudy, with a temperature falling to around 39 by 5pm. Southwest wind 9 to 14 mph becoming northwest in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Thursday Night
A chance of rain and snow showers before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 28. West wind 6 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Friday
Increasing clouds, with a high near 43. Wind chill values between 25 and 35. Light and variable wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 21 mph.
Friday Night
Mostly cloudy, with a low around 36. South wind around 10 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 47.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Mostly cloudy, with a high near 45.
Sunday Night
Showers likely, mainly after 2am. Cloudy, with a low around 37. Chance of precipitation is 70%.
Monday
Showers. High near 54. Chance of precipitation is 90%.
Monday Night
Showers likely. Mostly cloudy, with a low around 30. Chance of precipitation is 60%.
Tuesday
A 30 percent chance of showers. Mostly sunny, with a high near 40.
Tuesday Night
Mostly clear, with a low around 21.
Wednesday
Mostly sunny, with a high near 36.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mystic CT
 41.35°N 71.96°W (Elev. 0 ft)
Last Update:
7:41 pm EDT Mar 11, 2026
Forecast Valid:
2am EDT Mar 12, 2026-6pm EDT Mar 18, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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