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

40°F

4°C

Humidity 55%
Wind Speed W 10 G 21 mph
Barometer 29.99 in (1015.5 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 7 Dec 7:56 pm EST
Extended Forecast for

Old Saybrook Center CT

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 24. West wind 7 to 13 mph becoming northwest after midnight.

    Low: 24 °F

    Decreasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 29. Wind chill values between 10 and 15. Blustery, with a north wind 13 to 20 mph.

    High: 29 °F

    Mostly Sunny
    and Blustery
    then Partly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 17. Wind chill values between 10 and 15. North wind 6 to 9 mph.

    Low: 17 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 41. Wind chill values between 15 and 25. Light and variable wind becoming south 6 to 11 mph in the morning.

    High: 41 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A slight chance of rain and snow before 1am, then a slight chance of snow. Mostly cloudy, with a steady temperature around 38. Southwest wind 15 to 18 mph. Chance of precipitation is 20%.

    Low: 38 °F

    Slight Chance
    Rain/Snow

  • Wednesday

    Wednesday: A 50 percent chance of rain. Mostly cloudy, with a high near 48.

    High: 48 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain

  • Thursday

    Thursday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 24. West wind 7 to 13 mph becoming northwest after midnight.
Monday
Mostly sunny, with a high near 29. Wind chill values between 10 and 15. Blustery, with a north wind 13 to 20 mph.
Monday Night
Partly cloudy, with a low around 17. Wind chill values between 10 and 15. North wind 6 to 9 mph.
Tuesday
Increasing clouds, with a high near 41. Wind chill values between 15 and 25. Light and variable wind becoming south 6 to 11 mph in the morning.
Tuesday Night
A slight chance of rain and snow before 1am, then a slight chance of snow. Mostly cloudy, with a steady temperature around 38. Southwest wind 15 to 18 mph. Chance of precipitation is 20%.
Wednesday
A 50 percent chance of rain. Mostly cloudy, with a high near 48.
Wednesday Night
A 40 percent chance of rain before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 36.
Thursday
Mostly sunny, with a high near 42.
Thursday Night
Mostly cloudy, with a low around 30.
Friday
A chance of rain and snow. Partly sunny, with a high near 38. Chance of precipitation is 30%.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 26.
Saturday
A 30 percent chance of snow. Partly sunny, with a high near 35.
Saturday Night
Partly cloudy, with a low around 23.
Sunday
Mostly sunny, with a high near 33.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Old Saybrook Center CT
 41.29°N 72.39°W (Elev. 89 ft)
Last Update:
5:39 pm EST Dec 7, 2025
Forecast Valid:
8pm EST Dec 7, 2025-6pm EST Dec 14, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation