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

39°F

4°C

Humidity 60%
Wind Speed E 7 mph
Barometer 30.11 in (1019.4 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 14 Mar 3:54 am CDT
Extended Forecast for

Whiteside MO

  • Today

    Today: Mostly sunny, with a high near 62. East wind 6 to 11 mph becoming southeast in the afternoon. Winds could gust as high as 25 mph.

    High: 62 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 53. South wind 9 to 14 mph, with gusts as high as 28 mph.

    Low: 53 °F

    Partly Cloudy

  • Sunday

    Sunday: Rain, mainly after 1pm. High near 66. South wind 14 to 18 mph, with gusts as high as 38 mph. Chance of precipitation is 100%.

    High: 66 °F

    Chance Rain
    then Rain

  • Sunday Night

    Sunday Night: Rain and snow, becoming all snow after 10pm. Low around 16. Blustery, with a northwest wind 20 to 25 mph, with gusts as high as 47 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 16 °F

    Blustery.
    Rain/Snow
    then Snow

  • Monday

    Monday: A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 25. Blustery, with a northwest wind 18 to 23 mph, with gusts as high as 45 mph.

    High: 25 °F

    Chance Snow
    and Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 9.

    Low: 9 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow before 1am, then a slight chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.

    Low: 28 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 62. East wind 6 to 11 mph becoming southeast in the afternoon. Winds could gust as high as 25 mph.
Tonight
Partly cloudy, with a low around 53. South wind 9 to 14 mph, with gusts as high as 28 mph.
Sunday
Rain, mainly after 1pm. High near 66. South wind 14 to 18 mph, with gusts as high as 38 mph. Chance of precipitation is 100%.
Sunday Night
Rain and snow, becoming all snow after 10pm. Low around 16. Blustery, with a northwest wind 20 to 25 mph, with gusts as high as 47 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Monday
A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 25. Blustery, with a northwest wind 18 to 23 mph, with gusts as high as 45 mph.
Monday Night
Mostly clear, with a low around 9.
Tuesday
Mostly sunny, with a high near 36.
Tuesday Night
A chance of snow before 1am, then a slight chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.
Wednesday
Mostly sunny, with a high near 63.
Wednesday Night
Mostly clear, with a low around 38.
Thursday
Sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Sunny, with a high near 69.
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 Mar 14, 2026
Forecast Valid:
4am CDT Mar 14, 2026-6pm CDT Mar 20, 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