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

39°F

4°C

Humidity 60%
Wind Speed SW 15 mph
Barometer 30.32 in (1026.8 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 24 Mar 6:56 pm EDT
Extended Forecast for

Old Saybrook Center CT

  • Tonight

    Tonight: Increasing clouds, with a low around 29. Wind chill values between 20 and 25. Southwest wind 7 to 13 mph.

    Low: 29 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, with a high near 52. Southwest wind 3 to 8 mph.

    High: 52 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 36. South wind 7 to 9 mph.

    Low: 36 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 56. Southwest wind 9 to 15 mph.

    High: 56 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Rain, mainly after 2am. Low around 47. Southwest wind 14 to 16 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 47 °F

    Chance Rain
    then Rain

  • Friday

    Friday: Rain likely, mainly before 8am. Mostly cloudy, with a steady temperature around 48. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 48 °F

    Rain Likely
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 39.

    High: 39 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 29. Wind chill values between 20 and 25. Southwest wind 7 to 13 mph.
Wednesday
Partly sunny, with a high near 52. Southwest wind 3 to 8 mph.
Wednesday Night
Mostly cloudy, with a low around 36. South wind 7 to 9 mph.
Thursday
Mostly cloudy, with a high near 56. Southwest wind 9 to 15 mph.
Thursday Night
Rain, mainly after 2am. Low around 47. Southwest wind 14 to 16 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain likely, mainly before 8am. Mostly cloudy, with a steady temperature around 48. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Partly cloudy, with a low around 28.
Saturday
Sunny, with a high near 39.
Saturday Night
Mostly clear, with a low around 32.
Sunday
Sunny, with a high near 45.
Sunday Night
Partly cloudy, with a low around 36.
Monday
Partly sunny, with a high near 49.
Monday Night
Partly cloudy, with a low around 39.
Tuesday
Partly sunny, with a high near 50.
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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:
4:34 pm EDT Mar 24, 2026
Forecast Valid:
7pm EDT Mar 24, 2026-6pm EDT Mar 31, 2026
 
Forecast Discussion
 
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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