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. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

71°F

22°C

Humidity 90%
Wind Speed S 3 mph
Barometer 30.03 in (1016.6 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 4 Aug 10:53 pm CDT
Extended Forecast for

2 Miles SSE Valmeyer IL

  • Tonight

    Tonight: Mostly clear, with a low around 68. Light southeast wind.

    Low: 68 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 91. South wind 3 to 8 mph.

    High: 91 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms, mainly after midnight.  Increasing clouds, with a low around 71. Southeast wind 5 to 7 mph becoming calm  after midnight.

    Low: 71 °F

    Chance
    T-storms

  • Thursday

    Thursday: Showers and thunderstorms, mainly before 1pm.  High near 85. Light and variable wind.  Chance of precipitation is 80%.

    High: 85 °F

    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 70. Calm wind.  Chance of precipitation is 60%.

    Low: 70 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 86.

    High: 86 °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 70.

    Low: 70 °F

    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 68. Light southeast wind.
Wednesday
Sunny, with a high near 91. South wind 3 to 8 mph.
Wednesday Night
A 50 percent chance of showers and thunderstorms, mainly after midnight. Increasing clouds, with a low around 71. Southeast wind 5 to 7 mph becoming calm after midnight.
Thursday
Showers and thunderstorms, mainly before 1pm. High near 85. Light and variable wind. Chance of precipitation is 80%.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 60%.
Friday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86.
Friday Night
A 40 percent chance of showers and thunderstorms. Partly 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 92.
Sunday Night
Mostly clear, with a low around 74.
Monday
Sunny, with a high near 95.
Monday Night
Partly cloudy, with a low around 75.
Tuesday
Mostly sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Valmeyer IL
 38.29°N 90.3°W (Elev. 515 ft)
9:41 pm CDT Aug 4, 2026
11pm 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