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

38°F

3°C

Humidity 79%
Wind Speed E 9 mph
Barometer 30.22 in (1023.4 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 8 Apr 5:54 am CDT
Extended Forecast for

Whiteside MO

  • Today

    Today: Mostly sunny, with a high near 74. South wind 8 to 16 mph, with gusts as high as 31 mph.

    High: 74 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 54. South wind 8 to 13 mph, with gusts as high as 21 mph.

    Low: 54 °F

    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 77. Southwest wind around 7 mph.

    High: 77 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 57. Light south wind increasing to 5 to 9 mph in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 40%.

    Low: 57 °F

    Chance
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 65. Southwest wind around 7 mph becoming north in the afternoon. Chance of precipitation is 80%.

    High: 65 °F

    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 51. Chance of precipitation is 50%.

    Low: 51 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 71. Chance of precipitation is 40%.

    High: 71 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 59.

    Low: 59 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 30%.

    High: 77 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 74. South wind 8 to 16 mph, with gusts as high as 31 mph.
Tonight
Mostly clear, with a low around 54. South wind 8 to 13 mph, with gusts as high as 21 mph.
Thursday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 77. Southwest wind around 7 mph.
Thursday Night
A chance of showers, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 57. Light south wind increasing to 5 to 9 mph in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 40%.
Friday
Showers and possibly a thunderstorm. High near 65. Southwest wind around 7 mph becoming north in the afternoon. Chance of precipitation is 80%.
Friday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 51. Chance of precipitation is 50%.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 71. Chance of precipitation is 40%.
Saturday Night
Mostly cloudy, with a low around 59.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Monday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Tuesday
Showers and thunderstorms likely. Partly sunny, with a high near 77. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Whiteside MO
 39.17°N 91.01°W (Elev. 712 ft)
Last Update:
5:21 am CDT Apr 8, 2026
Forecast Valid:
6am CDT Apr 8, 2026-6pm CDT Apr 14, 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