Showers and Storms continue across the East; Heat, Critical Fire Weather, Drought, and Poor Air Quality continues in the West

A series of fronts will focus locally heavy showers and storms across portions of the central and eastern U.S. through the end of the workweek. Dangerous to extreme heat continues across the Southwest U.S., eventually spreading eastward over the weekend into early next week. Elevated fire weather conditions continue across the Great Basin, with degraded air quality lingering across the Northwest. Read More >

Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

A Few Clouds

74°F

23°C

Humidity 85%
Wind Speed E 5 mph
Barometer 30.02 in (1015.9 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 4 Aug 9:54 pm CDT
Extended Forecast for

5 Miles NNW Hazelwood MO

  • Tonight

    Tonight: Mostly clear, with a low around 71. Southeast wind 3 to 5 mph.

    Low: 71 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 2pm.  Sunny, with a high near 91. Light southeast wind becoming south 5 to 9 mph in the morning.

    High: 91 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly after 4am.  Cloudy, then gradually becoming partly cloudy, with a low around 72. Southwest wind 5 to 8 mph becoming light and variable.  Chance of precipitation is 60%.

    Low: 72 °F

    T-storms
    Likely

  • Thursday

    Thursday: Showers and thunderstorms, mainly before 10am.  High near 85. Northeast wind around 6 mph becoming southwest in the afternoon.  Chance of precipitation is 80%.

    High: 85 °F

    T-storms then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 71. Southeast wind around 5 mph becoming calm  in the evening.

    Low: 71 °F

    Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 10am, then a chance of showers and thunderstorms after 10am.  Partly sunny, with a high near 87. Chance of precipitation is 30%.

    High: 87 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 71. Southeast wind 3 to 5 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 91. Light southeast wind becoming south 5 to 9 mph in the morning.
Wednesday Night
Showers and thunderstorms likely, mainly after 4am. Cloudy, then gradually becoming partly cloudy, with a low around 72. Southwest wind 5 to 8 mph becoming light and variable. Chance of precipitation is 60%.
Thursday
Showers and thunderstorms, mainly before 10am. High near 85. Northeast wind around 6 mph becoming southwest in the afternoon. Chance of precipitation is 80%.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Southeast wind around 5 mph becoming calm in the evening.
Friday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 10am, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 87. Chance of precipitation is 30%.
Friday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Saturday
Mostly sunny, with a high near 90.
Saturday Night
Mostly clear, with a low around 74.
Sunday
Mostly sunny, with a high near 92.
Sunday Night
Mostly clear, with a low around 77.
Monday
Sunny, with a high near 95.
Monday Night
Mostly clear, with a low around 77.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNW Hazelwood MO
 38.85°N 90.39°W (Elev. 430 ft)
9:41 pm CDT Aug 4, 2026
10pm CDT Aug 4, 2026-6pm CDT Aug 11, 2026
 
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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