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

75°F

24°C

Humidity 94%
Wind Speed SE 7 mph
Barometer 30.09 in (1018.8 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 13 Jul 3:56 pm EDT
Extended Forecast for

Mystic CT

  • Tonight

    Tonight: Patchy drizzle after 5am. Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 68. Southeast wind around 6 mph becoming calm in the evening.

    Low: 68 °F

    Patchy Fog
    then Patchy
    Drizzle and
    Patchy Fog

  • Monday

    Monday: Patchy drizzle before 8am. Partly sunny, with a high near 78. Calm wind becoming south 5 to 8 mph in the morning.

    High: 78 °F

    Patchy
    Drizzle then
    Partly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 70. Southwest wind 3 to 5 mph.

    Low: 70 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 2pm, then a slight chance of showers. Mostly cloudy, with a high near 81. Calm wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 30%.

    High: 81 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 71. Southwest wind around 5 mph becoming calm in the evening.

    Low: 71 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 83.

    High: 83 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 72.

    Low: 72 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 84.

    High: 84 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 73.

    Low: 73 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy drizzle after 5am. Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 68. Southeast wind around 6 mph becoming calm in the evening.
Monday
Patchy drizzle before 8am. Partly sunny, with a high near 78. Calm wind becoming south 5 to 8 mph in the morning.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 70. Southwest wind 3 to 5 mph.
Tuesday
A chance of showers and thunderstorms before 2pm, then a slight chance of showers. Mostly cloudy, with a high near 81. Calm wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 71. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
Partly sunny, with a high near 83.
Wednesday Night
Mostly cloudy, with a low around 72.
Thursday
Partly sunny, with a high near 84.
Thursday Night
Mostly cloudy, with a low around 73.
Friday
A 30 percent chance of showers after 2pm. Partly sunny, with a high near 87.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 70.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
A 30 percent chance of showers. Partly cloudy, with a low around 67.
Sunday
A 30 percent chance of showers. Mostly sunny, with a high near 80.
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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:
2:02 pm EDT Jul 13, 2025
Forecast Valid:
4pm EDT Jul 13, 2025-6pm EDT Jul 20, 2025
 
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