Current conditions at

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

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

59°F

15°C

Humidity 90%
Wind Speed N 3 mph
Barometer 30.03 in (1016.7 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 22 Jun 5:56 am EDT
Extended Forecast for

2 Miles SE Old Lyme CT

  • Today

    Today: Showers likely and possibly a thunderstorm, mainly after 5pm.  Increasing clouds, with a high near 73. Calm wind becoming southeast 5 to 7 mph in the afternoon.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 73 °F

    Partly Sunny
    then Showers
    Likely

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm, then showers and possibly a thunderstorm after 11pm.  Steady temperature around 66. South wind 8 to 10 mph.  Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 66 °F

    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 2pm, then a chance of showers.  Mostly cloudy, with a high near 75. Light and variable wind becoming northwest around 6 mph in the morning.  Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 75 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers before 8pm.  Partly cloudy, with a low around 62. Northwest wind 3 to 5 mph.

    Low: 62 °F

    Chance
    Showers then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79. West wind 5 to 8 mph.

    High: 79 °F

    Sunny

  • Wednesday Night

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

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: A 50 percent chance of showers after 2am.  Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: A 50 percent chance of showers.  Partly sunny, with a high near 78.

    High: 78 °F

    Chance
    Showers

Detailed Forecast

Today
Showers likely and possibly a thunderstorm, mainly after 5pm. Increasing clouds, with a high near 73. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm, then showers and possibly a thunderstorm after 11pm. Steady temperature around 66. South wind 8 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
Showers likely and possibly a thunderstorm before 2pm, then a chance of showers. Mostly cloudy, with a high near 75. Light and variable wind becoming northwest around 6 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 62. Northwest wind 3 to 5 mph.
Wednesday
Sunny, with a high near 79. West wind 5 to 8 mph.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Sunny, with a high near 78.
Thursday Night
A 50 percent chance of showers after 2am. Partly cloudy, with a low around 65.
Friday
A 50 percent chance of showers. Partly sunny, with a high near 78.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 65.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
Partly cloudy, with a low around 65.
Sunday
Sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Old Lyme CT
 41.28°N 72.3°W (Elev. 0 ft)
6:23 am EDT Jun 22, 2026
6am EDT Jun 22, 2026-6pm EDT Jun 28, 2026
 
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Additional Resources

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Hourly Weather Forecast

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