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.

Light Rain

60°F

16°C

Humidity 90%
Wind Speed N 8 mph
Barometer 30.14 in (1020.6 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 1 Apr 6:56 pm EDT
Extended Forecast for

Old Saybrook Center CT

  • Tonight

    Tonight: Showers and possibly a thunderstorm. Low around 41. Light north wind becoming northeast 9 to 14 mph in the evening. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 41 °F

    Showers

  • Thursday

    Thursday: Showers likely, mainly before 8am. Cloudy, with a high near 43. Northeast wind around 15 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 43 °F

    Showers
    Likely then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of showers. Cloudy, with a low around 39. East wind 7 to 11 mph.

    Low: 39 °F

    Slight Chance
    Showers

  • Friday

    Friday: Mostly cloudy, with a high near 53. East wind 5 to 9 mph becoming southwest in the afternoon.

    High: 53 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 50. Southwest wind around 10 mph.

    Low: 50 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers, mainly after 2pm. High near 55. Chance of precipitation is 80%.

    High: 55 °F

    Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: Showers, mainly before 8pm. Low around 41. Chance of precipitation is 80%.

    Low: 41 °F

    Showers then
    Chance
    Showers

Detailed Forecast

Tonight
Showers and possibly a thunderstorm. Low around 41. Light north wind becoming northeast 9 to 14 mph in the evening. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely, mainly before 8am. Cloudy, with a high near 43. Northeast wind around 15 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 20 percent chance of showers. Cloudy, with a low around 39. East wind 7 to 11 mph.
Friday
Mostly cloudy, with a high near 53. East wind 5 to 9 mph becoming southwest in the afternoon.
Friday Night
Mostly cloudy, with a low around 50. Southwest wind around 10 mph.
Saturday
Partly sunny, with a high near 61.
Saturday Night
Mostly cloudy, with a low around 45.
Sunday
Showers, mainly after 2pm. High near 55. Chance of precipitation is 80%.
Sunday Night
Showers, mainly before 8pm. Low around 41. Chance of precipitation is 80%.
Monday
Mostly sunny, with a high near 50.
Monday Night
Mostly clear, with a low around 37.
Tuesday
Mostly sunny, with a high near 47.
Tuesday Night
Partly cloudy, with a low around 33.
Wednesday
Sunny, with a high near 45.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Old Saybrook Center CT
 41.29°N 72.39°W (Elev. 89 ft)
Last Update:
2:31 pm EDT Apr 1, 2026
Forecast Valid:
7pm EDT Apr 1, 2026-6pm EDT Apr 8, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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