National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

92°F

33°C

Humidity 58%
Wind Speed S 12 G 23 mph
Barometer 29.90 in (1011.6 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 29 Jun 3:54 pm CDT
Extended Forecast for

Valley Park MO

Extreme Heat Warning June 29, 04:24pm until July 3, 10:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning June 29, 04:24pm until July 3, 10:00pm

    NOW until 10:00pm Fri

    Extreme Heat Warning

  • Tonight

    Low: 77 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny and hot, with a high near 99. Heat index values as high as 109. Southwest wind 3 to 7 mph.

    High: 99 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 77. South wind around 5 mph becoming calm in the evening.

    Low: 77 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 98. Heat index values as high as 107. Calm wind becoming south around 6 mph in the morning.

    High: 98 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 78. South wind around 5 mph becoming calm after midnight.

    Low: 78 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 77.

    Low: 77 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96.

    High: 96 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming clear, with a low around 77. South wind 5 to 9 mph becoming light after midnight.
Tuesday
Sunny and hot, with a high near 99. Heat index values as high as 109. Southwest wind 3 to 7 mph.
Tuesday Night
Clear, with a low around 77. South wind around 5 mph becoming calm in the evening.
Wednesday
Sunny and hot, with a high near 98. Heat index values as high as 107. Calm wind becoming south around 6 mph in the morning.
Wednesday Night
Mostly clear, with a low around 78. South wind around 5 mph becoming calm after midnight.
Thursday
Sunny and hot, with a high near 97.
Thursday Night
Mostly clear, with a low around 77.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96.
Friday Night
Partly cloudy, with a low around 77.
Independence Day
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Sunday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Valley Park MO
 38.56°N 90.46°W (Elev. 492 ft)
Last Update:
2:06 pm CDT Jun 29, 2026
Forecast Valid:
4pm CDT Jun 29, 2026-6pm CDT Jul 6, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation