National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

61°F

16°C

Humidity 93%
Wind Speed SE 3 mph
Barometer 29.91 in (1012.3 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 17 Apr 1:54 am CDT
Extended Forecast for

Whiteside MO

  • Overnight

    Overnight: Partly cloudy, with a low around 59. South wind around 6 mph.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 84. South wind 6 to 14 mph, with gusts as high as 29 mph.

    High: 84 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely before 9pm, then showers and possibly a thunderstorm between 9pm and 4am, then showers likely after 4am. Low around 44. South wind 10 to 14 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 100%.

    Low: 44 °F

    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 56. Northwest wind around 14 mph, with gusts as high as 28 mph.

    High: 56 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Clear, with a low around 38. West wind 5 to 10 mph, with gusts as high as 21 mph.

    Low: 38 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 59. South wind around 6 mph.
Friday
A 40 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 84. South wind 6 to 14 mph, with gusts as high as 29 mph.
Friday Night
Showers and thunderstorms likely before 9pm, then showers and possibly a thunderstorm between 9pm and 4am, then showers likely after 4am. Low around 44. South wind 10 to 14 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 100%.
Saturday
A 30 percent chance of showers before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 56. Northwest wind around 14 mph, with gusts as high as 28 mph.
Saturday Night
Clear, with a low around 38. West wind 5 to 10 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 64.
Sunday Night
Mostly clear, with a low around 41.
Monday
Sunny, with a high near 69.
Monday Night
Mostly clear, with a low around 51.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Whiteside MO
 39.17°N 91.01°W (Elev. 712 ft)
Last Update:
1:26 am CDT Apr 17, 2026
Forecast Valid:
2am CDT Apr 17, 2026-6pm CDT Apr 23, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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