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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Mystic CT

  • Overnight

    Overnight: Patchy drizzle after 5am. Patchy fog. Otherwise, mostly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Patchy
    Drizzle and
    Patchy Fog

  • Monday

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

    High: 78 °F

    Patchy
    Drizzle and
    Patchy Fog
    then Partly
    Sunny

  • Monday Night

    Monday Night: A 50 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 then
    Chance
    Showers

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms, mainly before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 81. Calm wind becoming southwest 5 to 7 mph in the morning.

    High: 81 °F

    Chance
    Showers

  • Tuesday Night

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

    Low: 71 °F

    Partly 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: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.

    High: 84 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy drizzle after 5am. Patchy fog. Otherwise, mostly cloudy, with a low around 68. Calm wind.
Monday
Patchy drizzle and fog before 8am. Mostly cloudy, with a high near 78. Calm wind becoming south 5 to 8 mph in the morning.
Monday Night
A 50 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 70. Southwest wind 3 to 5 mph.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 81. Calm wind becoming southwest 5 to 7 mph in the morning.
Tuesday Night
Partly 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
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Thursday Night
Partly cloudy, with a low around 72.
Friday
A 40 percent chance of showers after 2pm. Mostly sunny, with a high near 86.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 69.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
Partly cloudy, with a low around 67.
Sunday
Partly sunny, with a high near 79.
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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:
2:18 am EDT Jul 14, 2025
Forecast Valid:
2am EDT Jul 14, 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