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

80°F

27°C

Humidity 47%
Wind Speed NW 10 G 18 mph
Barometer 29.79 in (1008.8 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 4 Sep 5:56 pm EDT
Extended Forecast for

2 Miles NNE Old Mystic CT

  • Tonight

    Tonight: Partly cloudy, with a low around 63. Northwest wind 5 to 8 mph.

    Low: 63 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Increasing clouds, with a high near 77. Northeast wind 5 to 7 mph. Chance of precipitation is 60%.

    High: 77 °F

    Sunny then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers between 8pm and 11pm. Mostly cloudy, with a low around 57. Light northeast wind. Chance of precipitation is 60%.

    Low: 57 °F

    Showers
    Likely then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 70. North wind 5 to 7 mph.

    High: 70 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53. Calm wind.

    Low: 53 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 63. Northwest wind 5 to 8 mph.
Saturday
A chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Increasing clouds, with a high near 77. Northeast wind 5 to 7 mph. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers between 8pm and 11pm. Mostly cloudy, with a low around 57. Light northeast wind. Chance of precipitation is 60%.
Sunday
Sunny, with a high near 70. North wind 5 to 7 mph.
Sunday Night
Mostly clear, with a low around 53. Calm wind.
Labor Day
Sunny, with a high near 75.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Partly sunny, with a high near 74.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 65.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Old Mystic CT
 41.39°N 71.95°W (Elev. 95 ft)
Last Update:
2:20 pm EDT Sep 4, 2026
Forecast Valid:
6pm EDT Sep 4, 2026-6pm EDT Sep 11, 2026
 
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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