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

40°F

4°C

Humidity 77%
Wind Speed W 10 mph
Barometer 29.85 in (1010.6 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 7 Jan 6:56 pm EST
Extended Forecast for

Old Saybrook Center CT

  • Tonight

    Tonight: Mostly clear, with a low around 34. West wind 7 to 9 mph.

    Low: 34 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 44. Northwest wind 6 to 8 mph.

    High: 44 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 33. Light and variable wind.

    Low: 33 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 48. Light south wind increasing to 8 to 13 mph in the morning.

    High: 48 °F

    Partly Sunny
    then Chance
    Rain

  • Friday Night

    Friday Night: Rain likely, mainly before 1am. Cloudy, with a low around 43. South wind 9 to 14 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Rain Likely

  • Saturday

    Saturday: Rain, mainly after 1pm. High near 49. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 49 °F

    Chance Rain
    then Rain

  • Saturday Night

    Saturday Night: Rain. Low around 42. Chance of precipitation is 90%.

    Low: 42 °F

    Rain

  • Sunday

    Sunday: A 40 percent chance of rain. Mostly cloudy, with a high near 48.

    High: 48 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 34. West wind 7 to 9 mph.
Thursday
Sunny, with a high near 44. Northwest wind 6 to 8 mph.
Thursday Night
Partly cloudy, with a low around 33. Light and variable wind.
Friday
A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 48. Light south wind increasing to 8 to 13 mph in the morning.
Friday Night
Rain likely, mainly before 1am. Cloudy, with a low around 43. South wind 9 to 14 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain, mainly after 1pm. High near 49. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Rain. Low around 42. Chance of precipitation is 90%.
Sunday
A 40 percent chance of rain. Mostly cloudy, with a high near 48.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Sunny, with a high near 38.
Monday Night
Partly cloudy, with a low around 30.
Tuesday
Mostly sunny, with a high near 41.
Tuesday Night
Partly cloudy, with a low around 32.
Wednesday
Partly sunny, with a high near 43.
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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:
6:54 pm EST Jan 7, 2026
Forecast Valid:
7pm EST Jan 7, 2026-6pm EST Jan 14, 2026
 
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Additional Resources

Radar & Satellite Image

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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