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

47°F

8°C

Humidity 37%
Wind Speed NA
Barometer 30.60 in (1036.3 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 28 Mar 12:54 pm CDT
Extended Forecast for

Whiteside MO

  • This Afternoon

    This Afternoon: Sunny, with a high near 56. South wind around 7 mph.

    High: 56 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 40. South wind 6 to 8 mph, with gusts as high as 20 mph.

    Low: 40 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 68. South wind 8 to 10 mph, with gusts as high as 23 mph.

    High: 68 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56. South wind 7 to 10 mph, with gusts as high as 22 mph.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 82. South wind 10 to 13 mph, with gusts as high as 28 mph.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: A 20 percent chance of rain after 1am. Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Tuesday

    Tuesday: A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 83. Chance of precipitation is 70%.

    High: 83 °F

    Chance Rain
    then Rain
    Likely

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm before 1am, then rain likely. Low around 43. Chance of precipitation is 90%.

    Low: 43 °F

    Rain

  • Wednesday

    Wednesday: A 40 percent chance of rain. Mostly cloudy, with a high near 54.

    High: 54 °F

    Chance Rain

Detailed Forecast

This Afternoon
Sunny, with a high near 56. South wind around 7 mph.
Tonight
Mostly clear, with a low around 40. South wind 6 to 8 mph, with gusts as high as 20 mph.
Sunday
Partly sunny, with a high near 68. South wind 8 to 10 mph, with gusts as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 56. South wind 7 to 10 mph, with gusts as high as 22 mph.
Monday
Sunny, with a high near 82. South wind 10 to 13 mph, with gusts as high as 28 mph.
Monday Night
A 20 percent chance of rain after 1am. Partly cloudy, with a low around 65.
Tuesday
A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 83. Chance of precipitation is 70%.
Tuesday Night
Rain and possibly a thunderstorm before 1am, then rain likely. Low around 43. Chance of precipitation is 90%.
Wednesday
A 40 percent chance of rain. Mostly cloudy, with a high near 54.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 37.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 55.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 41.
Friday
A 40 percent chance of rain. Mostly cloudy, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Whiteside MO
 39.17°N 91.01°W (Elev. 712 ft)
Last Update:
11:26 am CDT Mar 28, 2026
Forecast Valid:
1pm CDT Mar 28, 2026-6pm CDT Apr 3, 2026
 
Forecast Discussion
 
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Additional Resources

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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