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

43°F

6°C

Humidity 100%
Wind Speed N 3 mph
Barometer 30.06 in (1017.7 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 19 Oct 12:56 am EDT
Extended Forecast for

Old Saybrook Center CT

  • Overnight

    Overnight: Mostly clear, with a low around 53. Calm wind.

    Low: 53 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 69. South wind 5 to 11 mph, with gusts as high as 22 mph.

    High: 69 °F

    Sunny

  • Sunday Night

    Sunday Night: Showers, mainly after 2am. Steady temperature around 61. South wind around 11 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 61 °F

    Slight Chance
    Showers then
    Showers

  • Monday

    Monday: Showers and possibly a thunderstorm. High near 67. Southeast wind 14 to 17 mph becoming southwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 67 °F

    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers before 2am. Partly cloudy, with a low around 49. West wind 7 to 11 mph, with gusts as high as 21 mph.

    Low: 49 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers after 2am. Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, mainly between 8am and 2pm. Partly sunny, with a high near 65. Chance of precipitation is 60%.

    High: 65 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 46.

    Low: 46 °F

    Chance
    Showers then
    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 53. Calm wind.
Sunday
Sunny, with a high near 69. South wind 5 to 11 mph, with gusts as high as 22 mph.
Sunday Night
Showers, mainly after 2am. Steady temperature around 61. South wind around 11 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers and possibly a thunderstorm. High near 67. Southeast wind 14 to 17 mph becoming southwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Monday Night
A 30 percent chance of showers before 2am. Partly cloudy, with a low around 49. West wind 7 to 11 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 65.
Tuesday Night
A 40 percent chance of showers after 2am. Partly cloudy, with a low around 54.
Wednesday
Showers likely, mainly between 8am and 2pm. Partly sunny, with a high near 65. Chance of precipitation is 60%.
Wednesday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 46.
Thursday
Mostly sunny, with a high near 60.
Thursday Night
Partly cloudy, with a low around 43.
Friday
Sunny, with a high near 60.
Friday Night
Partly cloudy, with a low around 44.
Saturday
Partly sunny, with a high near 60.
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 72.36°W (Elev. 3 ft)
Last Update:
1:08 am EDT Oct 19, 2025
Forecast Valid:
1am EDT Oct 19, 2025-6pm EDT Oct 25, 2025
 
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