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

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Overcast

44°F

7°C

Humidity 76%
Wind Speed W 10 mph
Barometer 30.07 in (1018.2 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 7 Mar 7:54 pm CST
Extended Forecast for

Michael IL

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 35. West wind around 6 mph becoming light and variable.

    Low: 35 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 65. Southwest wind 6 to 11 mph, with gusts as high as 22 mph.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 45. Southwest wind around 8 mph, with gusts as high as 21 mph.

    Low: 45 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 77. South wind 7 to 10 mph, with gusts as high as 23 mph.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58. South wind 6 to 8 mph.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 81. Chance of precipitation is 60%.

    High: 81 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 45. Chance of precipitation is 100%.

    Low: 45 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before noon, then a chance of showers. High near 62. Chance of precipitation is 90%.

    High: 62 °F

    Showers then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers before midnight. Mostly clear, with a low around 30.

    Low: 30 °F

    Slight Chance
    Showers then
    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 35. West wind around 6 mph becoming light and variable.
Sunday
Sunny, with a high near 65. Southwest wind 6 to 11 mph, with gusts as high as 22 mph.
Sunday Night
Clear, with a low around 45. Southwest wind around 8 mph, with gusts as high as 21 mph.
Monday
Sunny, with a high near 77. South wind 7 to 10 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 58. South wind 6 to 8 mph.
Tuesday
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 81. Chance of precipitation is 60%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 45. Chance of precipitation is 100%.
Wednesday
Showers and possibly a thunderstorm before noon, then a chance of showers. High near 62. Chance of precipitation is 90%.
Wednesday Night
A 20 percent chance of showers before midnight. Mostly clear, with a low around 30.
Thursday
Sunny, with a high near 52.
Thursday Night
Mostly cloudy, with a low around 42.
Friday
Partly sunny, with a high near 65.
Friday Night
Mostly cloudy, with a low around 36.
Saturday
Mostly cloudy, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Michael IL
 39.23°N 90.63°W (Elev. 630 ft)
Last Update:
7:36 pm CST Mar 7, 2026
Forecast Valid:
8pm CST Mar 7, 2026-6pm CDT Mar 14, 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