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

19°F

-7°C

Humidity 39%
Wind Speed W 14 G 18 mph
Barometer 30.40 in (1029.4 mb)
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Wind Chill5°F (-15°C)
Last update 20 Jan 7:56 pm EST
Extended Forecast for

Old Saybrook Center CT

  • Tonight

    Tonight: Mostly clear, with a low around 16. Wind chill values between 5 and 10. West wind 8 to 13 mph.

    Low: 16 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 37. Wind chill values between 5 and 15. West wind 7 to 14 mph becoming south in the afternoon.

    High: 37 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before 4am, then a chance of rain. Mostly cloudy, with a low around 34. Southwest wind 14 to 16 mph. Chance of precipitation is 30%.

    Low: 34 °F

    Chance
    Rain/Snow

  • Thursday

    Thursday: A 30 percent chance of rain before 7am. Mostly sunny, with a high near 42. West wind 14 to 17 mph.

    High: 42 °F

    Chance Rain
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 24. West wind 11 to 14 mph.

    Low: 24 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 32.

    High: 32 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 10.

    Low: 10 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny and cold, with a high near 17.

    High: 17 °F

    Cold

  • Saturday Night

    Saturday Night: A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 12.

    Low: 12 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 16. Wind chill values between 5 and 10. West wind 8 to 13 mph.
Wednesday
Increasing clouds, with a high near 37. Wind chill values between 5 and 15. West wind 7 to 14 mph becoming south in the afternoon.
Wednesday Night
A chance of rain and snow before 4am, then a chance of rain. Mostly cloudy, with a low around 34. Southwest wind 14 to 16 mph. Chance of precipitation is 30%.
Thursday
A 30 percent chance of rain before 7am. Mostly sunny, with a high near 42. West wind 14 to 17 mph.
Thursday Night
Mostly cloudy, with a low around 24. West wind 11 to 14 mph.
Friday
Partly sunny, with a high near 32.
Friday Night
Partly cloudy, with a low around 10.
Saturday
Mostly sunny and cold, with a high near 17.
Saturday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 12.
Sunday
A 50 percent chance of snow. Cloudy, with a high near 21.
Sunday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 15.
Monday
A 30 percent chance of snow. Partly sunny, with a high near 25.
Monday Night
Partly cloudy, with a low around 15.
Tuesday
Sunny, with a high near 27.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Old Saybrook Center CT
 41.29°N 72.39°W (Elev. 89 ft)
Last Update:
6:01 pm EST Jan 20, 2026
Forecast Valid:
8pm EST Jan 20, 2026-6pm EST Jan 27, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation