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.

Mostly Cloudy

52°F

11°C

Humidity 80%
Wind Speed E 5 mph
Barometer 30.33 in (1026.9 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 11 Apr 12:54 am CDT
Extended Forecast for

Whiteside MO

  • Overnight

    Overnight: Increasing clouds, with a low around 48. East wind around 6 mph.

    Low: 48 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 70. Southeast wind 7 to 9 mph. Chance of precipitation is 30%.

    High: 70 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 61. Southeast wind around 9 mph, with gusts as high as 21 mph.

    Low: 61 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 79. South wind 9 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    High: 79 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. Southwest wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.

    Low: 65 °F

    Showers
    Likely

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.

    High: 84 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 86.

    High: 86 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.

    Low: 66 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Overnight
Increasing clouds, with a low around 48. East wind around 6 mph.
Saturday
A chance of showers, with thunderstorms also possible after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 70. Southeast wind 7 to 9 mph. Chance of precipitation is 30%.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 61. Southeast wind around 9 mph, with gusts as high as 21 mph.
Sunday
A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 79. South wind 9 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Sunday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. Southwest wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.
Monday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Monday Night
Partly cloudy, with a low around 68.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 86.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 77.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Whiteside MO
 39.17°N 91.01°W (Elev. 712 ft)
Last Update:
1:26 am CDT Apr 11, 2026
Forecast Valid:
1am CDT Apr 11, 2026-6pm CDT Apr 17, 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