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 79%
Wind Speed W 9 mph
Barometer 29.93 in (1013.3 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 9 Aug 12:56 am EDT
Extended Forecast for

3 Miles N South Lyme CT

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 75. Calm wind.

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 90. Calm wind becoming southwest 5 to 8 mph in the morning.

    High: 90 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 66. Calm wind.

    Low: 66 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 88. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers before 2am.  Partly cloudy, with a low around 70. Light west wind.

    Low: 70 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers after 2am.  Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 75. Calm wind.
Sunday
Sunny, with a high near 90. Calm wind becoming southwest 5 to 8 mph in the morning.
Sunday Night
Clear, with a low around 66. Calm wind.
Monday
Sunny, with a high near 88. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Monday Night
A 30 percent chance of showers before 2am. Partly cloudy, with a low around 70. Light west wind.
Tuesday
Mostly sunny, with a high near 87.
Tuesday Night
Partly cloudy, with a low around 65.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
A 30 percent chance of showers after 2am. Partly cloudy, with a low around 66.
Thursday
A 50 percent chance of showers. Partly sunny, with a high near 83.
Thursday Night
Partly cloudy, with a low around 64.
Friday
Mostly sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 58.
Saturday
Sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N South Lyme CT
 41.37°N 72.31°W (Elev. 98 ft)
8:54 pm EDT Aug 8, 2026
1am EDT Aug 9, 2026-6pm EDT Aug 15, 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