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

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

70°F

21°C

Humidity 73%
Wind Speed S 9 mph
Barometer 29.96 in (1014.3 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 13 Apr 4:53 am CDT
Extended Forecast for

3 Miles WSW Millstadt IL

  • Today

    Today: Mostly sunny, with a high near 82. South wind 8 to 16 mph, with gusts as high as 24 mph.

    High: 82 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 68. South wind 11 to 15 mph, with gusts as high as 28 mph.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Southwest wind 10 to 17 mph, with gusts as high as 26 mph.

    High: 86 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Southwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.

    Low: 69 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 81. South wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.

    High: 81 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.

    Low: 63 °F

    Showers
    Likely

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82.

    High: 82 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 82. South wind 8 to 16 mph, with gusts as high as 24 mph.
Tonight
Partly cloudy, with a low around 68. South wind 11 to 15 mph, with gusts as high as 28 mph.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Southwest wind 10 to 17 mph, with gusts as high as 26 mph.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Southwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.
Wednesday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 81. South wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 61.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 86.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
Saturday
Showers and thunderstorms likely. Partly sunny, with a high near 74. Chance of precipitation is 60%.
Saturday Night
A 30 percent chance of showers. Partly cloudy, with a low around 44.
Sunday
Sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Millstadt IL
 38.44°N 90.13°W (Elev. 650 ft)
Last Update:
4:46 am CDT Apr 13, 2026
Forecast Valid:
5am CDT Apr 13, 2026-6pm CDT Apr 19, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation