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.

Fair

35°F

2°C

Humidity 70%
Wind Speed Vrbl 3 mph
Barometer 30.30 in (1025.9 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 12 Mar 4:54 am CDT
Extended Forecast for

Rockbridge IL

Wind Advisory March 12, 10:00pm until March 13, 11:00am
Click here for hazard details and duration
Wind Advisory

  • Today

    Today: Sunny, with a high near 54. West wind 5 to 14 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph.

    High: 54 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 42. Breezy, with a south wind 14 to 23 mph, with gusts as high as 40 mph.

    Low: 42 °F

    Mostly Cloudy
    and Breezy

  • Friday

    Friday: Partly sunny, with a high near 56. Breezy, with a west wind 17 to 22 mph, with gusts as high as 33 mph.

    High: 56 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 33. Northwest wind 5 to 8 mph becoming east after midnight.

    Low: 33 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 60. Southeast wind 7 to 13 mph, with gusts as high as 20 mph.

    High: 60 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday

    Sunday: Rain likely and possibly a thunderstorm, then rain after 1pm. High near 65. Breezy. Chance of precipitation is 90%.

    High: 65 °F

    Rain and
    Breezy

  • Sunday Night

    Sunday Night: Rain and snow likely before 1am, then a chance of snow. Mostly cloudy, with a low around 19. Breezy. Chance of precipitation is 60%.

    Low: 19 °F

    Rain/Snow
    Likely and
    Breezy

  • Monday

    Monday: Mostly sunny, with a high near 29. Blustery.

    High: 29 °F

    Mostly Sunny
    and Blustery

Detailed Forecast

Today
Sunny, with a high near 54. West wind 5 to 14 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph.
Tonight
Mostly cloudy, with a low around 42. Breezy, with a south wind 14 to 23 mph, with gusts as high as 40 mph.
Friday
Partly sunny, with a high near 56. Breezy, with a west wind 17 to 22 mph, with gusts as high as 33 mph.
Friday Night
Mostly cloudy, with a low around 33. Northwest wind 5 to 8 mph becoming east after midnight.
Saturday
Partly sunny, with a high near 60. Southeast wind 7 to 13 mph, with gusts as high as 20 mph.
Saturday Night
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 49.
Sunday
Rain likely and possibly a thunderstorm, then rain after 1pm. High near 65. Breezy. Chance of precipitation is 90%.
Sunday Night
Rain and snow likely before 1am, then a chance of snow. Mostly cloudy, with a low around 19. Breezy. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 29. Blustery.
Monday Night
Mostly clear, with a low around 11.
Tuesday
Partly sunny, with a high near 36.
Tuesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 25.
Wednesday
Mostly cloudy, with a high near 55.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rockbridge IL
 39.26°N 90.2°W (Elev. 509 ft)
Last Update:
3:06 am CDT Mar 12, 2026
Forecast Valid:
5am CDT Mar 12, 2026-6pm CDT Mar 18, 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