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

71°F

22°C

Humidity 66%
Wind Speed S 16 G 26 mph
Barometer 29.90 in (1012.2 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 15 Apr 10:54 am CDT
Extended Forecast for

Whiteside MO

  • Today

    Today: Showers and thunderstorms likely before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then showers and thunderstorms likely after 4pm. Cloudy, with a high near 79. South wind around 11 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.

    High: 79 °F

    T-storms
    Likely

  • Tonight

    Tonight: Showers and thunderstorms before 4am, then a chance of showers. Low around 60. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.

    Low: 60 °F

    Showers

  • Thursday

    Thursday: A slight chance of showers, with thunderstorms also possible after 4pm. Sunny, with a high near 80. West wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 80 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59. South wind 3 to 5 mph.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. South wind 6 to 11 mph, with gusts as high as 25 mph.

    High: 85 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 48. Chance of precipitation is 80%.

    Low: 48 °F

    T-storms then
    Showers

  • Saturday

    Saturday: A 40 percent chance of showers. Mostly sunny, with a high near 60.

    High: 60 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before 1am. Mostly clear, with a low around 38.

    Low: 38 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

Detailed Forecast

Today
Showers and thunderstorms likely before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then showers and thunderstorms likely after 4pm. Cloudy, with a high near 79. South wind around 11 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.
Tonight
Showers and thunderstorms before 4am, then a chance of showers. Low around 60. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
Thursday
A slight chance of showers, with thunderstorms also possible after 4pm. Sunny, with a high near 80. West wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 59. South wind 3 to 5 mph.
Friday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. South wind 6 to 11 mph, with gusts as high as 25 mph.
Friday Night
Showers and possibly a thunderstorm. Low around 48. Chance of precipitation is 80%.
Saturday
A 40 percent chance of showers. Mostly sunny, with a high near 60.
Saturday Night
A 20 percent chance of showers before 1am. Mostly clear, with a low around 38.
Sunday
Sunny, with a high near 61.
Sunday Night
Clear, with a low around 39.
Monday
Sunny, with a high near 70.
Monday Night
Mostly clear, with a low around 49.
Tuesday
Mostly sunny, with a high near 74.
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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:
10:46 am CDT Apr 15, 2026
Forecast Valid:
11am CDT Apr 15, 2026-6pm CDT Apr 21, 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