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.

Thunderstorm Light Rain Fog/Mist

48°F

9°C

Humidity 100%
Wind Speed Calm
Barometer 29.96 in (1014.4 mb)
Dewpoint 48°F (9°C)
Visibility 5.00 mi
Last update 5 Mar 4:54 am CST
Extended Forecast for

Whiteside MO

  • Overnight

    Overnight: A 40 percent chance of showers and thunderstorms. Areas of fog. Otherwise, cloudy, with a low around 46. Light north wind.

    Low: 46 °F

    Chance
    Showers and
    Areas Fog

  • Thursday

    Thursday: A 30 percent chance of showers, mainly before 7am. Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 64. West wind around 6 mph becoming light and variable in the afternoon.

    High: 64 °F

    Chance
    Showers and
    Areas Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 52. Calm wind becoming south 5 to 9 mph in the evening. Winds could gust as high as 20 mph.

    Low: 52 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Friday

    Friday: A slight chance of showers and thunderstorms before noon, then a slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 78. South wind 10 to 17 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.

    High: 78 °F

    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 52. South wind 10 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 90%.

    Low: 52 °F

    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers before noon. Partly sunny, with a steady temperature around 56.

    High: 56 °F

    Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

Detailed Forecast

Overnight
A 40 percent chance of showers and thunderstorms. Areas of fog. Otherwise, cloudy, with a low around 46. Light north wind.
Thursday
A 30 percent chance of showers, mainly before 7am. Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 64. West wind around 6 mph becoming light and variable in the afternoon.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 52. Calm wind becoming south 5 to 9 mph in the evening. Winds could gust as high as 20 mph.
Friday
A slight chance of showers and thunderstorms before noon, then a slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 78. South wind 10 to 17 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 52. South wind 10 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 90%.
Saturday
A 30 percent chance of showers before noon. Partly sunny, with a steady temperature around 56.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Sunny, with a high near 64.
Sunday Night
Clear, with a low around 46.
Monday
Sunny, with a high near 75.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly clear, with a low around 57.
Tuesday
Showers and possibly a thunderstorm. High near 74. Chance of precipitation is 80%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 47. Chance of precipitation is 90%.
Wednesday
Showers likely. Mostly cloudy, with a high near 57. Chance of precipitation is 60%.
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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:
4:06 am CST Mar 5, 2026
Forecast Valid:
5am CST Mar 5, 2026-6pm CDT Mar 11, 2026
 
Forecast Discussion
 
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Additional Resources

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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