National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fog

45°F

7°C

Humidity 100%
Wind Speed E 6 mph
Barometer 29.80 in (1009.1 mb)
Dewpoint 45°F (7°C)
Visibility 0.50 mi
Wind Chill42°F (6°C)
Last update 19 Apr 6:56 am EDT
Extended Forecast for

Mystic CT

Freeze Watch April 21, 12:00am until April 21, 09:00am
Click here for hazard details and duration
Freeze Watch

  • Today

    Today: Showers. Patchy fog before 11am. High near 53. Southeast wind 5 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Showers and
    Patchy Fog

  • Tonight

    Tonight: Showers likely before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 36. West wind 3 to 7 mph. Chance of precipitation is 60%.

    Low: 36 °F

    Showers
    Likely then
    Clear

  • Monday

    Monday: A 30 percent chance of showers, mainly after 2pm. Partly sunny, with a high near 49. West wind 3 to 8 mph.

    High: 49 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 31. North wind around 6 mph.

    Low: 31 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 49. North wind around 6 mph becoming southwest in the afternoon.

    High: 49 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 38.

    Low: 38 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 53.

    High: 53 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

Detailed Forecast

Today
Showers. Patchy fog before 11am. High near 53. Southeast wind 5 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Showers likely before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 36. West wind 3 to 7 mph. Chance of precipitation is 60%.
Monday
A 30 percent chance of showers, mainly after 2pm. Partly sunny, with a high near 49. West wind 3 to 8 mph.
Monday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 31. North wind around 6 mph.
Tuesday
Sunny, with a high near 49. North wind around 6 mph becoming southwest in the afternoon.
Tuesday Night
Increasing clouds, with a low around 38.
Wednesday
Mostly cloudy, with a high near 53.
Wednesday Night
Partly cloudy, with a low around 40.
Thursday
Mostly sunny, with a high near 62.
Thursday Night
Partly cloudy, with a low around 42.
Friday
Mostly sunny, with a high near 59.
Friday Night
Partly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 58.
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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:
4:26 am EDT Apr 19, 2026
Forecast Valid:
7am EDT Apr 19, 2026-6pm EDT Apr 25, 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