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

39°F

4°C

Humidity 60%
Wind Speed SE 9 mph
Barometer 30.29 in (1025.6 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 19 Mar 12:56 pm EDT
Extended Forecast for

Old Saybrook Center CT

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 40. South wind around 7 mph.

    High: 40 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 34. South wind around 6 mph.

    Low: 34 °F

    Partly Cloudy

  • Friday

    Friday: A 40 percent chance of rain after 2pm. Increasing clouds, with a high near 46. Light and variable wind becoming south 8 to 13 mph in the afternoon.

    High: 46 °F

    Sunny then
    Chance Rain

  • Friday Night

    Friday Night: Rain likely, mainly between 8pm and 2am. Mostly cloudy, with a steady temperature around 44. Southwest wind 10 to 16 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 44 °F

    Rain Likely

  • Saturday

    Saturday: Mostly sunny, with a high near 52. Northwest wind around 9 mph.

    High: 52 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of rain after 2pm. Mostly cloudy, with a high near 49.

    High: 49 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly after 2am. Mostly cloudy, with a low around 41. Chance of precipitation is 70%.

    Low: 41 °F

    Rain Likely

  • Monday

    Monday: Rain likely, mainly before 8am. Partly sunny, with a high near 50. Chance of precipitation is 60%.

    High: 50 °F

    Rain Likely
    then Chance
    Rain

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 40. South wind around 7 mph.
Tonight
Partly cloudy, with a low around 34. South wind around 6 mph.
Friday
A 40 percent chance of rain after 2pm. Increasing clouds, with a high near 46. Light and variable wind becoming south 8 to 13 mph in the afternoon.
Friday Night
Rain likely, mainly between 8pm and 2am. Mostly cloudy, with a steady temperature around 44. Southwest wind 10 to 16 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Mostly sunny, with a high near 52. Northwest wind around 9 mph.
Saturday Night
Mostly cloudy, with a low around 38.
Sunday
A 30 percent chance of rain after 2pm. Mostly cloudy, with a high near 49.
Sunday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 41. Chance of precipitation is 70%.
Monday
Rain likely, mainly before 8am. Partly sunny, with a high near 50. Chance of precipitation is 60%.
Monday Night
Mostly clear, with a low around 30.
Tuesday
Sunny, with a high near 42.
Tuesday Night
Partly cloudy, with a low around 33.
Wednesday
Partly sunny, with a high near 44.
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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:
1:17 pm EDT Mar 19, 2026
Forecast Valid:
1pm EDT Mar 19, 2026-6pm EDT Mar 25, 2026
 
Forecast Discussion
 
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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