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

Hazardous Weather Conditions

Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Partly Cloudy

80°F

27°C

Humidity 74%
Wind Speed Calm
Barometer 29.97 in (1014.3 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 25 Jun 10:54 am CDT
Extended Forecast for

Rockbridge IL

Flood Watch June 25, 01:00pm until June 26, 07:00am
Click here for hazard details and duration
Flood Watch

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly cloudy, with a high near 83. Light and variable wind.

    High: 83 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 64. East wind 3 to 6 mph. Chance of precipitation is 90%.

    Low: 64 °F

    Chance
    T-storms then
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm, mainly before 10am, then a chance of showers and thunderstorms after 10am. High near 79. East wind 7 to 10 mph becoming south in the afternoon. Chance of precipitation is 80%.

    High: 79 °F

    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 64 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 85. Calm wind becoming south around 5 mph in the afternoon.

    High: 85 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 69.

    Low: 69 °F

    Chance
    T-storms

  • Sunday

    Sunday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly cloudy, with a high near 83. Light and variable wind.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 64. East wind 3 to 6 mph. Chance of precipitation is 90%.
Friday
Showers and possibly a thunderstorm, mainly before 10am, then a chance of showers and thunderstorms after 10am. High near 79. East wind 7 to 10 mph becoming south in the afternoon. Chance of precipitation is 80%.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 85. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 69.
Sunday
Sunny, with a high near 94.
Sunday Night
Mostly clear, with a low around 73.
Monday
Sunny, with a high near 95.
Monday Night
Clear, with a low around 74.
Tuesday
Sunny, with a high near 96.
Tuesday Night
Clear, with a low around 73.
Wednesday
Sunny, with a high near 96.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rockbridge IL
 39.28°N 90.2°W (Elev. 531 ft)
Last Update:
10:26 am CDT Jun 25, 2026
Forecast Valid:
11am CDT Jun 25, 2026-6pm CDT Jul 1, 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