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.

Fog/Mist

38°F

3°C

Humidity 97%
Wind Speed W 3 mph
Barometer 30.29 in (1025.8 mb)
Dewpoint 37°F (3°C)
Visibility 0.75 mi
Last update 2 Nov 8:54 am CST
Extended Forecast for

3 Miles WSW Rockbridge IL

  • Today

    Today: Sunny, with a high near 54. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 54 °F

    Sunny

  • Tonight

    Tonight: Areas of frost after 1am. Otherwise, mostly clear, with a low around 34. South wind around 6 mph.

    Low: 34 °F

    Clear then
    Areas Frost

  • Monday

    Monday: Areas of frost before 7am. Otherwise, sunny, with a high near 63. West wind 5 to 7 mph becoming light and variable in the afternoon.

    High: 63 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 37. Light and variable wind.

    Low: 37 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 69. South wind 5 to 14 mph, with gusts as high as 22 mph.

    High: 69 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 54. Calm wind becoming southwest around 6 mph in the afternoon.
Tonight
Areas of frost after 1am. Otherwise, mostly clear, with a low around 34. South wind around 6 mph.
Monday
Areas of frost before 7am. Otherwise, sunny, with a high near 63. West wind 5 to 7 mph becoming light and variable in the afternoon.
Monday Night
Partly cloudy, with a low around 37. Light and variable wind.
Tuesday
Mostly sunny, with a high near 69. South wind 5 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
Sunny, with a high near 70.
Wednesday Night
Mostly clear, with a low around 39.
Thursday
Mostly sunny, with a high near 68.
Thursday Night
A 40 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 51.
Friday
A 20 percent chance of rain. Mostly sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 44.
Saturday
A 20 percent chance of rain. Mostly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Rockbridge IL
 39.26°N 90.26°W (Elev. 515 ft)
Last Update:
8:22 am CST Nov 2, 2025
Forecast Valid:
9am CST Nov 2, 2025-6pm CST Nov 8, 2025
 
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