Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

A Few Clouds

90°F

32°C

Humidity 58%
Wind Speed N 9 mph
Barometer 29.94 in (1013.4 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 19 Aug 5:53 pm CDT
Extended Forecast for

Columbia IL

Heat Advisory August 19, 06:39pm until August 19, 08:00pm
Click here for hazard details and duration
...
  •  
    Heat Advisory August 19, 06:39pm until August 19, 08:00pm

    NOW until 8:00pm Tue

    Heat Advisory

  • Tonight

    Low: 72 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 88. North wind 5 to 9 mph.

    High: 88 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 66. Northeast wind 5 to 8 mph.

    Low: 66 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 85. Northeast wind 5 to 8 mph.

    High: 85 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 64. Northeast wind around 6 mph becoming calm  in the evening.

    Low: 64 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

Detailed Forecast

Tonight
Partly cloudy, with a low around 72. North wind 3 to 8 mph.
Wednesday
Mostly sunny, with a high near 88. North wind 5 to 9 mph.
Wednesday Night
Mostly clear, with a low around 66. Northeast wind 5 to 8 mph.
Thursday
Mostly sunny, with a high near 85. Northeast wind 5 to 8 mph.
Thursday Night
Mostly clear, with a low around 64. Northeast wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 65.
Saturday
Mostly sunny, with a high near 89.
Saturday Night
Mostly clear, with a low around 63.
Sunday
Sunny, with a high near 83.
Sunday Night
Mostly clear, with a low around 58.
Monday
Mostly sunny, with a high near 79.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 78.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Columbia IL
 38.46°N 90.21°W (Elev. 436 ft)
6:21 pm CDT Aug 19, 2025
6pm CDT Aug 19, 2025-6pm CDT Aug 26, 2025
 
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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