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

Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Partly Cloudy

70°F

21°C

Humidity 97%
Wind Speed Calm
Barometer 29.98 in (1014.9 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 22 Aug 2:53 am CDT
Extended Forecast for

Millstadt ILSimilar City Names

  • Overnight

    Overnight: Mostly clear, with a low around 70. Light and variable wind becoming southwest around 5 mph.

    Low: 70 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 85. North wind 6 to 9 mph.

    High: 85 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 64. North wind around 5 mph becoming calm in the evening.

    Low: 64 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 83. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 62. Light and variable wind.

    Low: 62 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 70. Light and variable wind becoming southwest around 5 mph.
Saturday
Sunny, with a high near 85. North wind 6 to 9 mph.
Saturday Night
Mostly clear, with a low around 64. North wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 83. Calm wind becoming northwest around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 62. Light and variable wind.
Monday
Mostly sunny, with a high near 81.
Monday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66.
Wednesday
Partly sunny, with a high near 87.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Thursday
Sunny, with a high near 87.
Thursday Night
Mostly clear, with a low around 67.
Friday
Mostly sunny, with a high near 88.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Millstadt ILSimilar City Names
 38.46°N 90.1°W (Elev. 604 ft)
Last Update:
2:36 am CDT Aug 22, 2026
Forecast Valid:
3am CDT Aug 22, 2026-6pm CDT Aug 28, 2026
 
Forecast Discussion
 
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Additional Resources

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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