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

63°F

17°C

Humidity 93%
Wind Speed E 7 mph
Barometer 30.10 in (1019.1 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 16 Jun 10:56 pm EDT
Extended Forecast for

Mystic CTSimilar City Names

  • Tonight

    Tonight: A slight chance of drizzle or light rain after 2am. Patchy fog after 2am. Otherwise, cloudy, with a low around 59. Northeast wind 5 to 7 mph. Chance of precipitation is 20%.

    Low: 59 °F

    Slight Chance
    Light Rain
    and Patchy
    Fog

  • Tuesday

    Tuesday: A 40 percent chance of showers, mainly after 8am. Patchy fog before noon. Otherwise, cloudy, with a high near 69. East wind around 7 mph.

    High: 69 °F

    Chance
    Showers and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers. Patchy fog. Otherwise, cloudy, with a low around 62. Light east wind.

    Low: 62 °F

    Chance
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: A slight chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 74. Calm wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 20%.

    High: 74 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 65. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of drizzle or light rain after 2am. Patchy fog after 2am. Otherwise, cloudy, with a low around 59. Northeast wind 5 to 7 mph. Chance of precipitation is 20%.
Tuesday
A 40 percent chance of showers, mainly after 8am. Patchy fog before noon. Otherwise, cloudy, with a high near 69. East wind around 7 mph.
Tuesday Night
A 50 percent chance of showers. Patchy fog. Otherwise, cloudy, with a low around 62. Light east wind.
Wednesday
A slight chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 74. Calm wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 20%.
Wednesday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 65. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Juneteenth
Mostly sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 64.
Friday
Sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 60.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly cloudy, with a low around 63.
Sunday
Partly sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 65.
Monday
Mostly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mystic CTSimilar City Names
 41.35°N 71.96°W (Elev. 0 ft)
Last Update:
9:32 pm EDT Jun 16, 2025
Forecast Valid:
11pm EDT Jun 16, 2025-6pm EDT Jun 23, 2025
 
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Additional Resources

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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