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

25°F

-4°C

Humidity 96%
Wind Speed Calm
Barometer 29.95 in (1014.3 mb)
Dewpoint 24°F (-4°C)
Visibility 8.00 mi
Last update 6 Dec 11:56 pm EST
Extended Forecast for

Old Saybrook Center CT

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 33. Northwest wind around 7 mph.

    Low: 33 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, 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

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 25. Wind chill values between 15 and 20. Southwest wind 7 to 15 mph becoming northwest after midnight.

    Low: 25 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 31. Wind chill values between 15 and 20. North wind 15 to 18 mph.

    High: 31 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 18. North wind 6 to 13 mph.

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 40.

    High: 40 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of rain after 1pm. Mostly cloudy, with a high near 47.

    High: 47 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 33. Northwest wind around 7 mph.
Sunday
Partly sunny, with a high near 41. Wind chill values between 25 and 35. Northwest wind around 6 mph becoming south in the afternoon.
Sunday Night
Partly cloudy, with a low around 25. Wind chill values between 15 and 20. Southwest wind 7 to 15 mph becoming northwest after midnight.
Monday
Sunny, with a high near 31. Wind chill values between 15 and 20. North wind 15 to 18 mph.
Monday Night
Partly cloudy, with a low around 18. North wind 6 to 13 mph.
Tuesday
Increasing clouds, with a high near 40.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
A 40 percent chance of rain after 1pm. Mostly cloudy, with a high near 47.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 37.
Thursday
A 30 percent chance of rain before 1pm. Partly sunny, with a high near 43.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 31.
Friday
A chance of rain and snow. Partly sunny, with a high near 40. Chance of precipitation is 30%.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 25.
Saturday
A 30 percent chance of snow. Mostly sunny, with a high near 34. Breezy.
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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:
4:40 pm EST Dec 6, 2025
Forecast Valid:
12am EST Dec 7, 2025-6pm EST Dec 13, 2025
 
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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