Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

70°F

21°C

Humidity 87%
Wind Speed Calm
Barometer 29.98 in (1014.8 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 26 Aug 11:53 pm CDT
Extended Forecast for

2 Miles SE Belleville IL

  • Overnight

    Overnight: Clear, with a low around 67. Calm wind.

    Low: 67 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 86. Calm wind becoming north 5 to 9 mph in the morning.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63. North wind around 6 mph becoming calm  in the evening.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 87. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61. Northeast wind around 5 mph becoming calm  in the evening.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 96.

    High: 96 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 67. Calm wind.
Thursday
Sunny, with a high near 86. Calm wind becoming north 5 to 9 mph in the morning.
Thursday Night
Mostly clear, with a low around 63. North wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 87. Calm wind becoming northeast around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 61. Northeast wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 90.
Saturday Night
Partly cloudy, with a low around 67.
Sunday
Sunny, with a high near 96.
Sunday Night
Mostly clear, with a low around 72.
Monday
Sunny and hot, with a high near 98.
Monday Night
Mostly clear, with a low around 75.
Tuesday
Sunny and hot, with a high near 98.
Tuesday Night
Partly cloudy, with a low around 76.
Wednesday
Mostly sunny and hot, with a high near 98.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Belleville IL
 38.5°N 89.98°W (Elev. 495 ft)
12:31 am CDT Aug 27, 2026
12am CDT Aug 27, 2026-6pm CDT Sep 2, 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