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.

Fair

75°F

24°C

Humidity 88%
Wind Speed Calm
Barometer 29.99 in (1015.3 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 22 Aug 7:53 am CDT
Extended Forecast for

Fairview Heights IL

  • Today

    Today: Sunny, with a high near 86. North wind 6 to 9 mph.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 65. North wind around 6 mph becoming calm  in the evening.

    Low: 65 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 84. North wind 5 to 8 mph.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 62. North wind around 5 mph becoming calm  in the evening.

    Low: 62 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 82. Calm wind becoming east 5 to 7 mph in the morning.

    High: 82 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 86. North wind 6 to 9 mph.
Tonight
Mostly clear, with a low around 65. North wind around 6 mph becoming calm in the evening.
Sunday
Sunny, with a high near 84. North wind 5 to 8 mph.
Sunday Night
Partly cloudy, with a low around 62. North wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 82. Calm wind becoming east 5 to 7 mph in the morning.
Monday Night
Partly cloudy, with a low around 65.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67.
Wednesday
Mostly sunny, with a high near 87.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 68.
Thursday
Sunny, with a high near 88.
Thursday Night
Mostly clear, with a low around 67.
Friday
Sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
Fairview Heights IL
 38.59°N 89.98°W (Elev. 561 ft)
5:36 am CDT Aug 22, 2026
8am CDT Aug 22, 2026-6pm CDT Aug 28, 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