Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

A Few Clouds

85°F

29°C

Humidity 75%
Wind Speed SE 7 mph
Barometer 30.03 in (1016.4 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 18 Jul 6:53 pm CDT
Extended Forecast for

5 Miles SSW Columbia IL

Extreme Heat Warning July 19, 12:00pm until July 23, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  • Tonight

    Tonight: Scattered showers and thunderstorms before 4am, then isolated showers.  Mostly cloudy, with a low around 74. Light south wind.  Chance of precipitation is 30%.

    Low: 74 °F

    Scattered
    T-storms

  • Saturday

    Saturday: Isolated showers, then a chance of showers and thunderstorms after 7am.  Mostly sunny, with a high near 93. Heat index values as high as 109. Southwest wind 3 to 7 mph.  Chance of precipitation is 40%.

    High: 93 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before 1am.  Mostly clear, with a low around 76. Southwest wind 3 to 5 mph.

    Low: 76 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 96. Heat index values as high as 110. West wind 3 to 6 mph.

    High: 96 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 76. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 76 °F

    Slight Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 96.

    High: 96 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 98.

    High: 98 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 77.

    Low: 77 °F

    Mostly Clear

Detailed Forecast

Tonight
Scattered showers and thunderstorms before 4am, then isolated showers. Mostly cloudy, with a low around 74. Light south wind. Chance of precipitation is 30%.
Saturday
Isolated showers, then a chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 93. Heat index values as high as 109. Southwest wind 3 to 7 mph. Chance of precipitation is 40%.
Saturday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 76. Southwest wind 3 to 5 mph.
Sunday
Mostly sunny, with a high near 96. Heat index values as high as 110. West wind 3 to 6 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76. Southwest wind around 5 mph becoming calm in the evening.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96.
Monday Night
Mostly clear, with a low around 76.
Tuesday
Sunny and hot, with a high near 98.
Tuesday Night
Mostly clear, with a low around 77.
Wednesday
Sunny and hot, with a high near 99.
Wednesday Night
Mostly clear, with a low around 77.
Thursday
Sunny and hot, with a high near 99.
Thursday Night
Mostly clear, with a low around 77.
Friday
Sunny and hot, with a high near 98.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Columbia IL
 38.4°N 90.24°W (Elev. 518 ft)
5:36 pm CDT Jul 18, 2025
7pm CDT Jul 18, 2025-6pm CDT Jul 25, 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