Current conditions at

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

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Overcast

67°F

19°C

Humidity 97%
Wind Speed E 9 mph
Barometer 29.85 in (1010.8 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 23 Aug 4:56 am EDT
Extended Forecast for

Old Mystic CT

  • Overnight

    Overnight: A 30 percent chance of showers.  Patchy fog.  Otherwise, cloudy, with a low around 62. Light east wind.

    Low: 62 °F

    Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 2pm.  Patchy fog before 11am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 78. Northeast wind 5 to 8 mph becoming south in the afternoon.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Showers
    Likely and
    Patchy Fog

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 63. South wind around 6 mph becoming calm  in the evening.

    Low: 63 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 78. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 60. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Overnight
A 30 percent chance of showers. Patchy fog. Otherwise, cloudy, with a low around 62. Light east wind.
Sunday
Showers likely, with thunderstorms also possible after 2pm. Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 78. Northeast wind 5 to 8 mph becoming south in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Partly cloudy, with a low around 63. South wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 78. Light southwest wind increasing to 5 to 10 mph in the morning.
Monday Night
Mostly clear, with a low around 60. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Showers likely. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Friday
Showers likely. Partly sunny, with a high near 80. Chance of precipitation is 60%.
Friday Night
Partly cloudy, with a low around 65.
Saturday
Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Old Mystic CT
 41.37°N 71.96°W (Elev. 43 ft)
3:21 am EDT Aug 23, 2026
5am EDT Aug 23, 2026-6pm EDT Aug 29, 2026
 
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Additional Resources

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