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

69°F

21°C

Humidity 90%
Wind Speed Calm
Barometer 30.02 in (1016.3 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 22 Aug 9:53 pm CDT
Extended Forecast for

2 Miles SSE Belleville IL

  • Tonight

    Tonight: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 84. Calm wind becoming north 5 to 7 mph in the afternoon.

    High: 84 °F

    Sunny

  • Sunday Night

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

    Low: 62 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 83. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of showers, with thunderstorms also possible after 10pm.  Partly cloudy, with a low around 65. East wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 88.

    High: 88 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 65. Calm wind.
Sunday
Sunny, with a high near 84. Calm wind becoming north 5 to 7 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 62. Light northeast wind.
Monday
Mostly sunny, with a high near 83. Calm wind becoming southeast around 5 mph in the afternoon.
Monday Night
A slight chance of showers, with thunderstorms also possible after 10pm. Partly cloudy, with a low around 65. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 86.
Tuesday Night
Partly cloudy, with a low around 68.
Wednesday
Partly sunny, with a high near 88.
Wednesday Night
Partly cloudy, with a low around 69.
Thursday
Sunny, with a high near 88.
Thursday Night
Mostly clear, with a low around 67.
Friday
Sunny, with a high near 87.
Friday Night
Partly cloudy, with a low around 68.
Saturday
Mostly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Belleville IL
 38.5°N 89.98°W (Elev. 495 ft)
5:56 pm CDT Aug 22, 2026
10pm CDT Aug 22, 2026-6pm CDT Aug 29, 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