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.

Partly Cloudy and Windy

78°F

26°C

Humidity 48%
Wind Speed S 26 G 38 mph
Barometer 29.81 in (1009.1 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 31 Mar 1:54 pm CDT
Extended Forecast for

Whiteside MO

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms, mainly after 4pm. Mostly cloudy, with a high near 80. Southwest wind 10 to 14 mph, with gusts as high as 29 mph.

    High: 80 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10pm. Low around 53. West wind around 6 mph becoming northeast after midnight. Chance of precipitation is 90%.

    Low: 53 °F

    T-storms

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4pm. Cloudy, with a high near 66. East wind around 8 mph. Chance of precipitation is 70%.

    High: 66 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 60. East wind 8 to 11 mph becoming south after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 50%.

    Low: 60 °F

    Chance
    Showers

  • Thursday

    Thursday: Rain and possibly a thunderstorm. High near 76. South wind 14 to 17 mph, with gusts as high as 36 mph. Chance of precipitation is 90%.

    High: 76 °F

    Rain

  • Thursday Night

    Thursday Night: A chance of rain and thunderstorms before 10pm, then a chance of rain between 10pm and 4am, then a chance of rain and thunderstorms after 4am. Partly cloudy, with a low around 57. Chance of precipitation is 50%.

    Low: 57 °F

    Chance Rain

  • Friday

    Friday: A chance of rain and thunderstorms before 7am, then a chance of rain between 7am and 1pm, then a chance of rain and thunderstorms after 1pm. Partly sunny, with a high near 81. Chance of precipitation is 50%.

    High: 81 °F

    Chance Rain

  • Friday Night

    Friday Night: Rain and possibly a thunderstorm. Low around 48. Chance of precipitation is 90%.

    Low: 48 °F

    Rain

  • Saturday

    Saturday: A chance of rain and thunderstorms. Mostly cloudy, with a high near 59. Chance of precipitation is 50%.

    High: 59 °F

    Chance Rain

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms, mainly after 4pm. Mostly cloudy, with a high near 80. Southwest wind 10 to 14 mph, with gusts as high as 29 mph.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10pm. Low around 53. West wind around 6 mph becoming northeast after midnight. Chance of precipitation is 90%.
Wednesday
Showers likely and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4pm. Cloudy, with a high near 66. East wind around 8 mph. Chance of precipitation is 70%.
Wednesday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 60. East wind 8 to 11 mph becoming south after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 50%.
Thursday
Rain and possibly a thunderstorm. High near 76. South wind 14 to 17 mph, with gusts as high as 36 mph. Chance of precipitation is 90%.
Thursday Night
A chance of rain and thunderstorms before 10pm, then a chance of rain between 10pm and 4am, then a chance of rain and thunderstorms after 4am. Partly cloudy, with a low around 57. Chance of precipitation is 50%.
Friday
A chance of rain and thunderstorms before 7am, then a chance of rain between 7am and 1pm, then a chance of rain and thunderstorms after 1pm. Partly sunny, with a high near 81. Chance of precipitation is 50%.
Friday Night
Rain and possibly a thunderstorm. Low around 48. Chance of precipitation is 90%.
Saturday
A chance of rain and thunderstorms. Mostly cloudy, with a high near 59. Chance of precipitation is 50%.
Saturday Night
A 20 percent chance of rain before 1am. Partly cloudy, with a low around 35.
Sunday
Mostly sunny, with a high near 53.
Sunday Night
Mostly clear, with a low around 33.
Monday
Sunny, with a high near 63.
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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:
1:30 pm CDT Mar 31, 2026
Forecast Valid:
2pm CDT Mar 31, 2026-6pm CDT Apr 6, 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