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

23°F

-5°C

Humidity 72%
Wind Speed Calm
Barometer 30.63 in (1037.1 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Last update 3 Mar 7:56 am EST
Extended Forecast for

Old Saybrook Center CT

  • Today

    Today: Rain, possibly mixed with snow, becoming all rain after 3pm. High near 38. Wind chill values between 20 and 30. East wind 6 to 9 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.

    High: 38 °F

    Snow Likely
    then
    Rain/Snow

  • Tonight

    Tonight: Rain, mainly before 1am. Low around 36. East wind 6 to 8 mph becoming west after midnight. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 36 °F

    Rain

  • Wednesday

    Wednesday: Mostly sunny, with a high near 47. Northwest wind around 6 mph becoming light and variable in the morning.

    High: 47 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 34. Calm wind.

    Low: 34 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday

    Thursday: A 50 percent chance of rain. Cloudy, with a high near 44. Calm wind becoming east 5 to 7 mph in the afternoon.

    High: 44 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain likely. Cloudy, with a low around 37. Chance of precipitation is 60%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 37 °F

    Rain Likely

  • Friday

    Friday: A 50 percent chance of rain before 1pm. Mostly cloudy, with a high near 43.

    High: 43 °F

    Chance Rain

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Saturday

    Saturday: Cloudy, with a high near 49.

    High: 49 °F

    Cloudy

Detailed Forecast

Today
Rain, possibly mixed with snow, becoming all rain after 3pm. High near 38. Wind chill values between 20 and 30. East wind 6 to 9 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Rain, mainly before 1am. Low around 36. East wind 6 to 8 mph becoming west after midnight. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday
Mostly sunny, with a high near 47. Northwest wind around 6 mph becoming light and variable in the morning.
Wednesday Night
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 34. Calm wind.
Thursday
A 50 percent chance of rain. Cloudy, with a high near 44. Calm wind becoming east 5 to 7 mph in the afternoon.
Thursday Night
Rain likely. Cloudy, with a low around 37. Chance of precipitation is 60%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
A 50 percent chance of rain before 1pm. Mostly cloudy, with a high near 43.
Friday Night
Mostly cloudy, with a low around 36.
Saturday
Cloudy, with a high near 49.
Saturday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.
Sunday
Mostly cloudy, with a high near 54.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Partly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
Old Saybrook Center CT
 41.29°N 72.39°W (Elev. 89 ft)
Last Update:
4:31 am EST Mar 3, 2026
Forecast Valid:
8am EST Mar 3, 2026-6pm EDT Mar 9, 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