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.

Fog

51°F

11°C

Humidity 100%
Wind Speed Calm
Barometer 29.88 in (1011.9 mb)
Dewpoint 51°F (11°C)
Visibility 0.50 mi
Last update 10 May 3:56 am EDT
Extended Forecast for

Mystic CT

  • Today

    Today: Areas of fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 67. Calm wind becoming southwest 5 to 8 mph in the morning.

    High: 67 °F

    Areas Fog
    then Partly
    Sunny

  • Tonight

    Tonight: A 40 percent chance of showers. Increasing clouds, with a low around 47. Calm wind becoming north around 5 mph.

    Low: 47 °F

    Chance
    Showers

  • Monday

    Monday: A 20 percent chance of showers before 2pm. Partly sunny, with a high near 61. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 61 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 44. Calm wind becoming northwest around 5 mph after midnight.

    Low: 44 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 63. North wind 5 to 8 mph becoming west in the afternoon.

    High: 63 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers after noon. Mostly cloudy, with a high near 60.

    High: 60 °F

    Partly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers, mainly after 2am. Low around 49. Chance of precipitation is 80%.

    Low: 49 °F

    Chance
    Showers then
    Showers

  • Thursday

    Thursday: Showers. High near 62. Chance of precipitation is 80%.

    High: 62 °F

    Showers

Detailed Forecast

Today
Areas of fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 67. Calm wind becoming southwest 5 to 8 mph in the morning.
Tonight
A 40 percent chance of showers. Increasing clouds, with a low around 47. Calm wind becoming north around 5 mph.
Monday
A 20 percent chance of showers before 2pm. Partly sunny, with a high near 61. Calm wind becoming southwest around 6 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 44. Calm wind becoming northwest around 5 mph after midnight.
Tuesday
Sunny, with a high near 63. North wind 5 to 8 mph becoming west in the afternoon.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
A 30 percent chance of showers after noon. Mostly cloudy, with a high near 60.
Wednesday Night
Showers, mainly after 2am. Low around 49. Chance of precipitation is 80%.
Thursday
Showers. High near 62. Chance of precipitation is 80%.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 49.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 66.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Mostly sunny, with a high near 70.
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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:
3:32 am EDT May 10, 2026
Forecast Valid:
4am EDT May 10, 2026-6pm EDT May 16, 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