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

59°F

15°C

Humidity 93%
Wind Speed Calm
Barometer 30.15 in (1020.8 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 23 Jun 3:54 am CDT
Extended Forecast for

3 Miles SE Whiteside MO

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly clear, with a low around 58. Calm wind.

    Low: 58 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, sunny, with a high near 79. Calm wind.

    High: 79 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 61. Light east wind.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers between 9am and 10am, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 81. Light and variable wind becoming south around 5 mph. Chance of precipitation is 40%.

    High: 81 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 82. Chance of precipitation is 70%.

    High: 82 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 65. Chance of precipitation is 80%.

    Low: 65 °F

    Showers

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.

    High: 80 °F

    Showers
    Likely then
    T-storms
    Likely

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly clear, with a low around 58. Calm wind.
Tuesday
Patchy fog before 8am. Otherwise, sunny, with a high near 79. Calm wind.
Tuesday Night
Partly cloudy, with a low around 61. Light east wind.
Wednesday
A chance of showers between 9am and 10am, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 81. Light and variable wind becoming south around 5 mph. Chance of precipitation is 40%.
Wednesday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 64. Calm wind.
Thursday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 82. Chance of precipitation is 70%.
Thursday Night
Showers and possibly a thunderstorm. Low around 65. Chance of precipitation is 80%.
Friday
Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Saturday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 87.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Sunday
Sunny, with a high near 92.
Sunday Night
Mostly clear, with a low around 74.
Monday
Sunny, with a high near 94.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Whiteside MO
 39.15°N 90.98°W (Elev. 801 ft)
Last Update:
2:11 am CDT Jun 23, 2026
Forecast Valid:
3am CDT Jun 23, 2026-6pm CDT Jun 29, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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