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

24°F

-4°C

Humidity 91%
Wind Speed N 3 mph
Barometer 30.03 in (1016.7 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 7 Dec 4:56 am EST
Extended Forecast for

Old Saybrook Center CT

  • Today

    Today: Increasing clouds, with a high near 41. Wind chill values between 25 and 35. Northwest wind around 6 mph becoming south in the afternoon.

    High: 41 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 25. Wind chill values between 15 and 20. Blustery, with a west wind 8 to 13 mph increasing to 15 to 20 mph after midnight.

    Low: 25 °F

    Partly Cloudy
    then Mostly
    Clear and
    Blustery

  • Monday

    Monday: Mostly sunny, with a high near 31. Wind chill values between 10 and 20. Blustery, with a north wind 14 to 22 mph.

    High: 31 °F

    Sunny and
    Blustery then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 17. North wind 6 to 11 mph.

    Low: 17 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 41. Light and variable wind becoming southwest 9 to 14 mph in the morning.

    High: 41 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a steady temperature around 38.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of rain. Mostly cloudy, with a high near 47.

    High: 47 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Chance Rain

  • Thursday

    Thursday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 41. Wind chill values between 25 and 35. Northwest wind around 6 mph becoming south in the afternoon.
Tonight
Partly cloudy, with a low around 25. Wind chill values between 15 and 20. Blustery, with a west wind 8 to 13 mph increasing to 15 to 20 mph after midnight.
Monday
Mostly sunny, with a high near 31. Wind chill values between 10 and 20. Blustery, with a north wind 14 to 22 mph.
Monday Night
Partly cloudy, with a low around 17. North wind 6 to 11 mph.
Tuesday
Increasing clouds, with a high near 41. Light and variable wind becoming southwest 9 to 14 mph in the morning.
Tuesday Night
Mostly cloudy, with a steady temperature around 38.
Wednesday
A 50 percent chance of rain. Mostly cloudy, with a high near 47.
Wednesday Night
A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 37.
Thursday
Mostly sunny, with a high near 43.
Thursday Night
Mostly cloudy, with a low around 31.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 40. Chance of precipitation is 40%.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 26. Chance of precipitation is 40%.
Saturday
A chance of rain and snow. Partly sunny, with a high near 34. Chance of precipitation is 30%.
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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:
4:20 am EST Dec 7, 2025
Forecast Valid:
5am EST Dec 7, 2025-6pm EST Dec 13, 2025
 
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