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

34°F

1°C

Humidity 82%
Wind Speed NE 7 mph
Barometer 29.89 in (1012.2 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 6 Jan 5:56 pm EST
Extended Forecast for

Old Saybrook Center CT

  • Tonight

    Tonight: A 50 percent chance of rain, mainly after 7pm. Patchy fog after 1am. Otherwise, cloudy, with a low around 36. East wind 5 to 8 mph becoming north after midnight.

    Low: 36 °F

    Chance Rain
    and Patchy
    Fog

  • Wednesday

    Wednesday: A 20 percent chance of rain before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 43. West wind 5 to 13 mph.

    High: 43 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 33. Northwest wind around 9 mph.

    Low: 33 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 44. West wind around 7 mph.

    High: 44 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 34. Calm wind becoming south around 5 mph after midnight.

    Low: 34 °F

    Mostly Cloudy

  • Friday

    Friday: Rain likely, mainly after 1pm. Mostly cloudy, with a high near 48. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 48 °F

    Chance Rain
    then Rain
    Likely

  • Friday Night

    Friday Night: A 40 percent chance of rain. Cloudy, with a low around 42.

    Low: 42 °F

    Chance Rain

  • Saturday

    Saturday: Rain. High near 48. Chance of precipitation is 80%.

    High: 48 °F

    Rain

  • Saturday Night

    Saturday Night: Rain, mainly before 1am. Low around 40. Chance of precipitation is 80%.

    Low: 40 °F

    Rain

Detailed Forecast

Tonight
A 50 percent chance of rain, mainly after 7pm. Patchy fog after 1am. Otherwise, cloudy, with a low around 36. East wind 5 to 8 mph becoming north after midnight.
Wednesday
A 20 percent chance of rain before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 43. West wind 5 to 13 mph.
Wednesday Night
Mostly clear, with a low around 33. Northwest wind around 9 mph.
Thursday
Sunny, with a high near 44. West wind around 7 mph.
Thursday Night
Mostly cloudy, with a low around 34. Calm wind becoming south around 5 mph after midnight.
Friday
Rain likely, mainly after 1pm. Mostly cloudy, with a high near 48. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A 40 percent chance of rain. Cloudy, with a low around 42.
Saturday
Rain. High near 48. Chance of precipitation is 80%.
Saturday Night
Rain, mainly before 1am. Low around 40. Chance of precipitation is 80%.
Sunday
A 40 percent chance of rain. Mostly cloudy, with a high near 45.
Sunday Night
Mostly cloudy, with a low around 32.
Monday
Mostly sunny, with a high near 40.
Monday Night
Partly cloudy, with a low around 32.
Tuesday
Mostly sunny, with a high near 42.
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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:
1:40 pm EST Jan 6, 2026
Forecast Valid:
6pm EST Jan 6, 2026-6pm EST Jan 13, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation