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.

Fair

78°F

26°C

Humidity 62%
Wind Speed S 9 mph
Barometer 30.08 in (1018.6 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 4 Aug 4:56 pm EDT
Extended Forecast for

West Mystic CT

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 60. Light and variable wind.

    Low: 60 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 7am. Otherwise, partly sunny, with a high near 81. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 81 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers. Increasing clouds, with a low around 69. Calm wind.

    Low: 69 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 84. Light southwest wind increasing to 5 to 9 mph in the morning.

    High: 84 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 72. Southwest wind 3 to 5 mph.

    Low: 72 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 60. Light and variable wind.
Wednesday
Patchy fog before 7am. Otherwise, partly sunny, with a high near 81. Calm wind becoming south 5 to 7 mph in the afternoon.
Wednesday Night
A 20 percent chance of showers. Increasing clouds, with a low around 69. Calm wind.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 84. Light southwest wind increasing to 5 to 9 mph in the morning.
Thursday Night
Mostly clear, with a low around 72. Southwest wind 3 to 5 mph.
Friday
Sunny, with a high near 86.
Friday Night
Partly cloudy, with a low around 71.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
Partly cloudy, with a low around 71.
Sunday
Sunny, with a high near 84.
Sunday Night
Mostly clear, with a low around 69.
Monday
Sunny, with a high near 85.
Monday Night
Partly cloudy, with a low around 68.
Tuesday
A 30 percent chance of showers. Mostly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
West Mystic CT
 41.35°N 71.99°W (Elev. 98 ft)
Last Update:
4:10 pm EDT Aug 4, 2026
Forecast Valid:
5pm EDT Aug 4, 2026-6pm EDT Aug 11, 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