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

7°C

45°F

Humidity 93%
Wind Speed Calm
Barometer 1012.0 mb (29.89 in)
Dewpoint 6°C (43°F)
Visibility 16 km
Last update 8 May 3:54 am CDT
Extended Forecast for

Whiteside MO

  • Today

    Today: Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 3pm. High near 21. South wind 10 to 13 km/h becoming northwest in the afternoon. Winds could gust as high as 32 km/h. Chance of precipitation is 80%.

    High: 21 °C

    Partly Sunny
    then Showers

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 10pm, then isolated showers between 10pm and 11pm. Mostly cloudy, with a low around 9. Southwest wind 3 to 8 km/h. Chance of precipitation is 60%.

    Low: 9 °C

    Showers
    Likely then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 26. Southwest wind 10 to 14 km/h, with gusts as high as 34 km/h.

    High: 26 °C

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers after 1am. Increasing clouds, with a low around 12. Southwest wind 5 to 8 km/h becoming north after midnight.

    Low: 12 °C

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 19. North wind around 11 km/h.

    High: 19 °C

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 6.

    Low: 6 °C

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 21.

    High: 21 °C

    Sunny

  • Monday Night

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

    Low: 9 °C

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 26.

    High: 26 °C

    Slight Chance
    T-storms

Detailed Forecast

Today
Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 3pm. High near 21. South wind 10 to 13 km/h becoming northwest in the afternoon. Winds could gust as high as 32 km/h. Chance of precipitation is 80%.
Tonight
Showers likely and possibly a thunderstorm before 10pm, then isolated showers between 10pm and 11pm. Mostly cloudy, with a low around 9. Southwest wind 3 to 8 km/h. Chance of precipitation is 60%.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 26. Southwest wind 10 to 14 km/h, with gusts as high as 34 km/h.
Saturday Night
A 40 percent chance of showers after 1am. Increasing clouds, with a low around 12. Southwest wind 5 to 8 km/h becoming north after midnight.
Sunday
Partly sunny, with a high near 19. North wind around 11 km/h.
Sunday Night
Mostly clear, with a low around 6.
Monday
Sunny, with a high near 21.
Monday Night
Mostly clear, with a low around 9.
Tuesday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 26.
Tuesday Night
Mostly clear, with a low around 12.
Wednesday
Sunny, with a high near 23.
Wednesday Night
Mostly clear, with a low around 10.
Thursday
A 20 percent chance of showers. Sunny, with a high near 26.
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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 m)
Last Update:
2:41 am CDT May 8, 2026
Forecast Valid:
4am CDT May 8, 2026-6pm CDT May 14, 2026
 
Forecast Discussion
 
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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