National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

35°F

2°C

Humidity 61%
Wind Speed N 6 mph
Barometer 30.67 in (1039.0 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 28 Mar 7:53 am CDT
Extended Forecast for

3 Miles WSW Millstadt IL

Freeze Warning March 28, 08:39am until March 28, 09:00am
Click here for hazard details and duration
...
  •  
    Freeze Warning March 28, 08:39am until March 28, 09:00am

    NOW until 9:00am Sat

    Freeze Warning

  • Today

    High: 55 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 38. South wind around 8 mph.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 68. South wind 8 to 14 mph, with gusts as high as 23 mph.

    High: 68 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56. South wind around 11 mph, with gusts as high as 21 mph.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 81. South wind 11 to 17 mph, with gusts as high as 28 mph.

    High: 81 °F

    Sunny

  • Monday Night

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

    Low: 65 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of rain, then a chance of rain and thunderstorms after 1pm. Partly sunny, with a high near 84. Chance of precipitation is 40%.

    High: 84 °F

    Slight Chance
    Rain then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 48. Chance of precipitation is 90%.

    Low: 48 °F

    Rain

Detailed Forecast

Today
Sunny, with a high near 55. North wind 5 to 8 mph becoming southeast in the afternoon.
Tonight
Mostly clear, with a low around 38. South wind around 8 mph.
Sunday
Mostly sunny, with a high near 68. South wind 8 to 14 mph, with gusts as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 56. South wind around 11 mph, with gusts as high as 21 mph.
Monday
Sunny, with a high near 81. South wind 11 to 17 mph, with gusts as high as 28 mph.
Monday Night
Partly cloudy, with a low around 65.
Tuesday
A slight chance of rain, then a chance of rain and thunderstorms after 1pm. Partly sunny, with a high near 84. Chance of precipitation is 40%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 48. Chance of precipitation is 90%.
Wednesday
Rain likely, mainly before 1pm. Cloudy, with a high near 56. Chance of precipitation is 60%.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 40.
Thursday
Rain likely. Mostly cloudy, with a high near 56. Chance of precipitation is 60%.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 44.
Friday
A 40 percent chance of rain. Partly sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Millstadt IL
 38.44°N 90.13°W (Elev. 650 ft)
Last Update:
8:16 am CDT Mar 28, 2026
Forecast Valid:
8am CDT Mar 28, 2026-6pm CDT Apr 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation