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

72°F

22°C

Humidity 76%
Wind Speed SE 7 mph
Barometer 29.59 in (1001.5 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 17 Jun 7:54 am CDT
Extended Forecast for

Whiteside MO

Wind Advisory June 17, 01:00pm until June 17, 08:00pm
Click here for hazard details and duration
Wind Advisory

  • Today

    Today: A chance of showers and thunderstorms before 2pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 89. Breezy, with a south wind 11 to 16 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 46 mph. Chance of precipitation is 30%.

    High: 89 °F

    Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 9pm. Partly cloudy, with a low around 65. West wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 60%.

    Low: 65 °F

    T-storms
    Likely then
    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers after 1pm. Increasing clouds, with a high near 77. Northwest wind 5 to 8 mph.

    High: 77 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 58. Light northwest wind.

    Low: 58 °F

    Decreasing
    Clouds

  • Juneteenth

    Juneteenth: Sunny, with a high near 82. Calm wind.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 67. Chance of precipitation is 60%.

    Low: 67 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after 1pm. High near 82. Chance of precipitation is 80%.

    High: 82 °F

    Showers

Detailed Forecast

Today
A chance of showers and thunderstorms before 2pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 89. Breezy, with a south wind 11 to 16 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 46 mph. Chance of precipitation is 30%.
Tonight
Showers and thunderstorms likely, mainly before 9pm. Partly cloudy, with a low around 65. West wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 60%.
Thursday
A 20 percent chance of showers after 1pm. Increasing clouds, with a high near 77. Northwest wind 5 to 8 mph.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 58. Light northwest wind.
Juneteenth
Sunny, with a high near 82. Calm wind.
Friday Night
Mostly clear, with a low around 63.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 67. Chance of precipitation is 60%.
Sunday
Showers likely, then showers and possibly a thunderstorm after 1pm. High near 82. Chance of precipitation is 80%.
Sunday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 65. Chance of precipitation is 80%.
Monday
A 20 percent chance of showers. Partly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 61.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 80.
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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 ft)
Last Update:
7:56 am CDT Jun 17, 2026
Forecast Valid:
8am CDT Jun 17, 2026-6pm CDT Jun 23, 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