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.

Light Rain

37°F

3°C

Humidity 96%
Wind Speed N 7 mph
Barometer 29.75 in (1007.5 mb)
Dewpoint 36°F (2°C)
Visibility 8.00 mi
Wind Chill32°F (0°C)
Last update 18 Feb 5:56 pm EST
Extended Forecast for

Old Saybrook Center CT

  • Tonight

    Tonight: Rain likely, possibly mixing with snow after 1am, then gradually ending. Areas of fog before 1am. Otherwise, cloudy, with a low around 33. Northeast wind 3 to 7 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 33 °F

    Rain/Snow
    Likely and
    Areas Fog

  • Thursday

    Thursday: Partly sunny, with a steady temperature around 36. Northeast wind around 6 mph becoming southeast in the afternoon.

    High: 36 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of snow after 1am, mixing with rain after 4am. Mostly cloudy, with a low around 33. East wind 3 to 7 mph. Chance of precipitation is 40%.

    Low: 33 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Friday

    Friday: Rain likely, possibly mixed with snow before 10am, then rain. Steady temperature around 36. East wind 8 to 13 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 36 °F

    Rain/Snow
    Likely then
    Rain

  • Friday Night

    Friday Night: Rain and snow likely, mainly before 1am. Cloudy, with a low around 34. North wind 6 to 10 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 34 °F

    Rain/Snow
    Likely

  • Saturday

    Saturday: A chance of rain and snow. Partly sunny, with a high near 39. Chance of precipitation is 40%.

    High: 39 °F

    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: A chance of rain and snow before 1am. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.

    Low: 30 °F

    Chance
    Rain/Snow

  • Sunday

    Sunday: A 30 percent chance of snow after 1pm. Mostly cloudy, with a high near 36.

    High: 36 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday Night

    Sunday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 30. Blustery.

    Low: 30 °F

    Chance Snow
    and Blustery

Detailed Forecast

Tonight
Rain likely, possibly mixing with snow after 1am, then gradually ending. Areas of fog before 1am. Otherwise, cloudy, with a low around 33. Northeast wind 3 to 7 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Thursday
Partly sunny, with a steady temperature around 36. Northeast wind around 6 mph becoming southeast in the afternoon.
Thursday Night
A chance of snow after 1am, mixing with rain after 4am. Mostly cloudy, with a low around 33. East wind 3 to 7 mph. Chance of precipitation is 40%.
Friday
Rain likely, possibly mixed with snow before 10am, then rain. Steady temperature around 36. East wind 8 to 13 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Friday Night
Rain and snow likely, mainly before 1am. Cloudy, with a low around 34. North wind 6 to 10 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Saturday
A chance of rain and snow. Partly sunny, with a high near 39. Chance of precipitation is 40%.
Saturday Night
A chance of rain and snow before 1am. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.
Sunday
A 30 percent chance of snow after 1pm. Mostly cloudy, with a high near 36.
Sunday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 30. Blustery.
Monday
A 40 percent chance of snow before 1pm. Mostly cloudy, with a high near 36. Breezy.
Monday Night
Partly cloudy, with a low around 25.
Tuesday
Sunny, with a high near 36.
Tuesday Night
Mostly clear, with a low around 23.
Wednesday
Mostly sunny, with a high near 39.
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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:
12:48 pm EST Feb 18, 2026
Forecast Valid:
6pm EST Feb 18, 2026-6pm EST Feb 25, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation