National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Overcast

74°F

23°C

Humidity 94%
Wind Speed S 15 mph
Barometer 29.78 in (1008.3 mb)
Dewpoint 72°F (22°C)
Visibility 8.00 mi
Last update 3 Aug 6:56 am EDT
Extended Forecast for

Old Saybrook Center CT

  • Today

    Today: Showers and possibly a thunderstorm. High near 75. Breezy, with a south wind 17 to 20 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 75 °F

    Showers and
    Breezy

  • Tonight

    Tonight: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 65. West wind 5 to 13 mph becoming northwest after midnight. Chance of precipitation is 40%.

    Low: 65 °F

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 77. Light and variable wind.

    High: 77 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly before 2pm. Partly sunny, with a high near 76. Light south wind.

    High: 76 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 70.

    Low: 70 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 2am. Partly cloudy, with a low around 72.

    Low: 72 °F

    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

Detailed Forecast

Today
Showers and possibly a thunderstorm. High near 75. Breezy, with a south wind 17 to 20 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Tonight
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 65. West wind 5 to 13 mph becoming northwest after midnight. Chance of precipitation is 40%.
Tuesday
Increasing clouds, with a high near 77. Light and variable wind.
Tuesday Night
Mostly cloudy, with a low around 66. Calm wind.
Wednesday
A 30 percent chance of showers, mainly before 2pm. Partly sunny, with a high near 76. Light south wind.
Wednesday Night
Mostly cloudy, with a low around 70.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
A 30 percent chance of showers before 2am. Partly cloudy, with a low around 72.
Friday
Mostly sunny, with a high near 79.
Friday Night
A chance of showers between 8pm and 2am. Partly cloudy, with a low around 72. Chance of precipitation is 30%.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 79.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 70.
Sunday
Mostly sunny, with a high near 79.
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:
2:12 am EDT Aug 3, 2026
Forecast Valid:
7am EDT Aug 3, 2026-6pm EDT Aug 9, 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