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

72°F

22°C

Humidity 57%
Wind Speed SW 10 mph
Barometer 29.97 in (1014.8 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 26 Aug 4:56 pm EDT
Extended Forecast for

Old Saybrook Center CT

  • Tonight

    Tonight: Partly cloudy, with a low around 58. West wind 5 to 7 mph becoming light and variable.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 74. North wind 6 to 8 mph becoming southwest in the afternoon.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57. Northwest wind around 6 mph.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 72. Calm wind becoming southwest 5 to 9 mph in the morning.

    High: 72 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 65. South wind around 9 mph.

    Low: 65 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 71. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.

    Low: 58 °F

    Showers
    Likely

  • Saturday

    Saturday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 58 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 58. West wind 5 to 7 mph becoming light and variable.
Wednesday
Sunny, with a high near 74. North wind 6 to 8 mph becoming southwest in the afternoon.
Wednesday Night
Mostly clear, with a low around 57. Northwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 72. Calm wind becoming southwest 5 to 9 mph in the morning.
Thursday Night
Partly cloudy, with a low around 65. South wind around 9 mph.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 71. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Saturday
Mostly sunny, with a high near 69.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Mostly sunny, with a high near 71.
Sunday Night
Mostly clear, with a low around 59.
Labor Day
Mostly sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
Mostly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
Old Saybrook Center CT
 41.29°N 72.39°W (Elev. 89 ft)
Last Update:
2:19 pm EDT Aug 26, 2025
Forecast Valid:
5pm EDT Aug 26, 2025-6pm EDT Sep 2, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation