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

70°F

21°C

Humidity 93%
Wind Speed NE 7 mph
Barometer 29.84 in (1010.5 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 17 Aug 12:56 pm EDT
Extended Forecast for

Mystic CTSimilar City Names

  • This Afternoon

    This Afternoon: Areas of drizzle before 3pm. Mostly cloudy, with a high near 73. East wind around 10 mph.

    High: 73 °F

    Areas Drizzle

  • Tonight

    Tonight: Mostly cloudy, with a steady temperature around 70. North wind 3 to 7 mph.

    Low: 70 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 83. North wind around 6 mph becoming southwest in the afternoon.

    High: 83 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 65. Light and variable wind.

    Low: 65 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 83. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers before 2am. Partly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Areas of drizzle before 3pm. Mostly cloudy, with a high near 73. East wind around 10 mph.
Tonight
Mostly cloudy, with a steady temperature around 70. North wind 3 to 7 mph.
Tuesday
Mostly sunny, with a high near 83. North wind around 6 mph becoming southwest in the afternoon.
Tuesday Night
Partly cloudy, with a low around 65. Light and variable wind.
Wednesday
Sunny, with a high near 83. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 67.
Thursday
A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 82.
Thursday Night
A 40 percent chance of showers before 2am. Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 79.
Friday Night
A 30 percent chance of showers after 2am. Partly cloudy, with a low around 63.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 76.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 63.
Sunday
A 50 percent chance of showers. Partly sunny, with a high near 76.
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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:
11:37 am EDT Aug 17, 2026
Forecast Valid:
1pm EDT Aug 17, 2026-6pm EDT Aug 23, 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