Heat Persists in the Southwest; Elevated to Critical Fire Weather in the Great Basin; Poor Air Quality in the West

Dangerous heat will persist across the Southwest U.S. through this week, easing by next week. The heat will focus further east in the Great Plains and Mississippi Valley beginning next week. Elevated to locally critical fire weather conditions will persist for the Great Basin today. Poor air quality lingers for the Northwest, Great Basin, Central Rockies into the Plains. Read More >

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Partly Cloudy

82°F

28°C

Humidity 63%
Wind Speed SW 6 mph
Barometer 30.05 in (1017.1 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 4 Aug 10:53 am CDT
Extended Forecast for

4 Miles WNW Millstadt IL

  • Today

    Today: Sunny, with a high near 88. Southeast wind 3 to 6 mph.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 68. Southeast wind 3 to 6 mph.

    Low: 68 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 90. South wind 3 to 6 mph.

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 71. South wind 5 to 7 mph.  Chance of precipitation is 60%.

    Low: 71 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 1pm.  Partly sunny, with a high near 87. South wind around 6 mph.  Chance of precipitation is 70%.

    High: 87 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am.  Mostly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms.  Partly sunny, with a high near 87.

    High: 87 °F

    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am.  Mostly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 88. Southeast wind 3 to 6 mph.
Tonight
Mostly clear, with a low around 68. Southeast wind 3 to 6 mph.
Wednesday
Sunny, with a high near 90. South wind 3 to 6 mph.
Wednesday Night
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 71. South wind 5 to 7 mph. Chance of precipitation is 60%.
Thursday
Showers likely and possibly a thunderstorm before 1pm. Partly sunny, with a high near 87. South wind around 6 mph. Chance of precipitation is 70%.
Thursday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 70.
Friday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 70.
Saturday
Mostly sunny, with a high near 89.
Saturday Night
Mostly clear, with a low around 72.
Sunday
Sunny, with a high near 91.
Sunday Night
Mostly clear, with a low around 74.
Monday
Sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Millstadt IL
 38.48°N 90.15°W (Elev. 548 ft)
9:01 am CDT Aug 4, 2026
11am CDT Aug 4, 2026-6pm CDT Aug 10, 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