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.

Mostly Cloudy

79°F

26°C

Humidity 62%
Wind Speed S 14 mph
Barometer 29.95 in (1013.8 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 3 Apr 12:54 pm CDT
Extended Forecast for

Whiteside MO

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 79 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 4am, then showers likely. Low around 49. South wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    Low: 49 °F

    Chance
    T-storms then
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 55. West wind 10 to 18 mph, with gusts as high as 30 mph.

    High: 55 °F

    Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36. West wind 8 to 14 mph, with gusts as high as 26 mph.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 57. Northwest wind 8 to 10 mph, with gusts as high as 21 mph.

    High: 57 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 38.

    Low: 38 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: A chance of rain showers after 1am, mixing with snow after 4am. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.

    Low: 34 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Tuesday

    Tuesday: A 30 percent chance of snow showers before 7am. Mostly cloudy, with a high near 53.

    High: 53 °F

    Chance Snow
    Showers then
    Mostly Cloudy

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. South wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Showers and thunderstorms before 4am, then showers likely. Low around 49. South wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Saturday
A 30 percent chance of showers, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 55. West wind 10 to 18 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 36. West wind 8 to 14 mph, with gusts as high as 26 mph.
Sunday
Sunny, with a high near 57. Northwest wind 8 to 10 mph, with gusts as high as 21 mph.
Sunday Night
Clear, with a low around 38.
Monday
Sunny, with a high near 58.
Monday Night
A chance of rain showers after 1am, mixing with snow after 4am. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.
Tuesday
A 30 percent chance of snow showers before 7am. Mostly cloudy, with a high near 53.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
Mostly sunny, with a high near 71.
Wednesday Night
Mostly clear, with a low around 53.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Whiteside MO
 39.17°N 91.01°W (Elev. 712 ft)
Last Update:
1:26 pm CDT Apr 3, 2026
Forecast Valid:
1pm CDT Apr 3, 2026-6pm CDT Apr 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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