Heavy Rain and Flash Flooding in the West; Heat Expands in the Central U.S.

Monsoonal moisture will produce showers and thunderstorms with heavy rain over parts of the Southwest, Great Basin, and Central Rockies through Monday. Flash flooding is possible, especially in and around burn scars and in areas of steep terrain. Heat will persist across the Central U.S. early this week, spreading into the Ohio Valley and Mid-Atlantic later this week. Read More >

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

91°F

33°C

Humidity 38%
Wind Speed Vrbl 3 mph
Barometer 30.01 in (1015.3 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 30 Aug 12:54 pm CDT
Extended Forecast for

Valley Park MO

Extreme Heat Watch August 31, 12:00pm until September 4, 08:00pm
Click here for hazard details and duration
Extreme Heat Watch
  • This Afternoon

    This Afternoon: Sunny and hot, with a high near 97. Heat index values as high as 100. South wind around 7 mph.

    High: 97 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 73. South wind around 6 mph.

    Low: 73 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 100. Heat index values as high as 106. Southwest wind 5 to 7 mph.

    High: 100 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 78. South wind around 6 mph.

    Low: 78 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 101. Southwest wind 3 to 6 mph.

    High: 101 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 80.

    Low: 80 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 100.

    High: 100 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 79.

    Low: 79 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 100.

    High: 100 °F

    Hot

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 97. Heat index values as high as 100. South wind around 7 mph.
Tonight
Mostly clear, with a low around 73. South wind around 6 mph.
Monday
Sunny and hot, with a high near 100. Heat index values as high as 106. Southwest wind 5 to 7 mph.
Monday Night
Mostly clear, with a low around 78. South wind around 6 mph.
Tuesday
Sunny and hot, with a high near 101. Southwest wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 80.
Wednesday
Sunny and hot, with a high near 100.
Wednesday Night
Mostly clear, with a low around 79.
Thursday
Sunny and hot, with a high near 100.
Thursday Night
Mostly clear, with a low around 78.
Friday
Sunny and hot, with a high near 99.
Friday Night
Partly cloudy, with a low around 75.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 95.
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ABOUT THIS FORECAST

 
Point Forecast:
Valley Park MO
 38.56°N 90.46°W (Elev. 492 ft)
1:26 pm CDT Aug 30, 2026
2pm CDT Aug 30, 2026-6pm CDT Sep 5, 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