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

42°F

6°C

Humidity 65%
Wind Speed N 15 mph
Barometer 30.24 in (1023.8 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 23 Mar 2:54 am CDT
Extended Forecast for

Whiteside MO

  • Overnight

    Overnight: Mostly clear, with a low around 33. North wind around 11 mph, with gusts as high as 24 mph.

    Low: 33 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 54. North wind 7 to 9 mph, with gusts as high as 20 mph.

    High: 54 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of sprinkles after 1am. Mostly cloudy, with a low around 36. Southeast wind 5 to 8 mph.

    Low: 36 °F

    Chance
    Sprinkles

  • Tuesday

    Tuesday: Mostly sunny, with a high near 61. Southeast wind 7 to 9 mph, with gusts as high as 20 mph.

    High: 61 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 41. Southeast wind around 6 mph.

    Low: 41 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 40. Chance of precipitation is 70%.

    Low: 40 °F

    Showers
    Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 33. North wind around 11 mph, with gusts as high as 24 mph.
Monday
Mostly sunny, with a high near 54. North wind 7 to 9 mph, with gusts as high as 20 mph.
Monday Night
A chance of sprinkles after 1am. Mostly cloudy, with a low around 36. Southeast wind 5 to 8 mph.
Tuesday
Mostly sunny, with a high near 61. Southeast wind 7 to 9 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 41. Southeast wind around 6 mph.
Wednesday
Mostly sunny, with a high near 76.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Sunny, with a high near 88.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 40. Chance of precipitation is 70%.
Friday
A chance of rain showers, mixing with snow after 10am, then gradually ending. Partly sunny, with a high near 52. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 29.
Saturday
Sunny, with a high near 57.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Mostly sunny, with a high near 63.
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:
2:51 am CDT Mar 23, 2026
Forecast Valid:
3am CDT Mar 23, 2026-6pm CDT Mar 29, 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