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

42°F

6°C

Humidity 85%
Wind Speed S 7 mph
Barometer 29.69 in (1005.3 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 14 Jan 3:56 am EST
Extended Forecast for

Mystic CT

  • Overnight

    Overnight: Isolated showers. Cloudy, with a low around 39. Southwest wind around 8 mph. Chance of precipitation is 20%.

    Low: 39 °F

    Isolated
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 47. Southwest wind 6 to 9 mph.

    High: 47 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Showers likely, mainly between 1am and 4am. Cloudy, with a steady temperature around 42. Calm wind becoming west around 6 mph after midnight. Chance of precipitation is 60%.

    Low: 42 °F

    Showers
    Likely

  • Thursday

    Thursday: A 30 percent chance of showers, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 33 by 5pm. Wind chill values between 25 and 35. West wind 6 to 14 mph, with gusts as high as 25 mph.

    High: 44 °F⇓

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 18. West wind 10 to 13 mph, with gusts as high as 31 mph.

    Low: 18 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 35.

    High: 35 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 41.

    High: 41 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Isolated showers. Cloudy, with a low around 39. Southwest wind around 8 mph. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, with a high near 47. Southwest wind 6 to 9 mph.
Wednesday Night
Showers likely, mainly between 1am and 4am. Cloudy, with a steady temperature around 42. Calm wind becoming west around 6 mph after midnight. Chance of precipitation is 60%.
Thursday
A 30 percent chance of showers, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 33 by 5pm. Wind chill values between 25 and 35. West wind 6 to 14 mph, with gusts as high as 25 mph.
Thursday Night
Partly cloudy, with a low around 18. West wind 10 to 13 mph, with gusts as high as 31 mph.
Friday
Sunny, with a high near 35.
Friday Night
Mostly cloudy, with a low around 28.
Saturday
A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 41.
Saturday Night
Mostly cloudy, with a low around 27.
Sunday
Partly sunny, with a high near 35.
Sunday Night
Partly cloudy, with a low around 21.
M.L.King Day
Mostly sunny, with a high near 33.
Monday Night
Mostly cloudy, with a low around 21.
Tuesday
Mostly sunny, with a high near 30.
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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:
1:35 am EST Jan 14, 2026
Forecast Valid:
4am EST Jan 14, 2026-6pm EST Jan 20, 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