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.

Fog

52°F

11°C

Humidity 100%
Wind Speed S 6 mph
Barometer 29.56 in (1000.9 mb)
Dewpoint 52°F (11°C)
Visibility 0.50 mi
Wind Chill50°F (10°C)
Last update 19 Feb 6:53 am CST
Extended Forecast for

3 Miles WSW Millstadt IL

Dense Fog Advisory until February 19, 09:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory until February 19, 09:00am

    NOW until 9:00am Thu

    Dense Fog Advisory

  • Today

    High: 68 °F

    Scattered
    T-storms and
    Areas Dense
    Fog

  • Tonight

    Tonight: Mostly clear, with a low around 35. Breezy, with a west wind 11 to 20 mph, with gusts as high as 31 mph.

    Low: 35 °F

    Mostly Clear
    then Mostly
    Clear and
    Breezy

  • Friday

    Friday: Sunny, with a high near 49. West wind 13 to 18 mph decreasing to 6 to 11 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 49 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 30. Calm wind becoming north around 6 mph after midnight.

    Low: 30 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of snow between noon and 3pm, then a slight chance of rain after 3pm. Mostly sunny, with a high near 45. Northwest wind 6 to 10 mph. Chance of precipitation is 20%.

    High: 45 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 38.

    High: 38 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 20.

    Low: 20 °F

    Mostly Clear

Detailed Forecast

Today
Scattered showers and thunderstorms, mainly before 2pm. Areas of dense fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 68. South wind 6 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Tonight
Mostly clear, with a low around 35. Breezy, with a west wind 11 to 20 mph, with gusts as high as 31 mph.
Friday
Sunny, with a high near 49. West wind 13 to 18 mph decreasing to 6 to 11 mph in the afternoon. Winds could gust as high as 29 mph.
Friday Night
Partly cloudy, with a low around 30. Calm wind becoming north around 6 mph after midnight.
Saturday
A slight chance of snow between noon and 3pm, then a slight chance of rain after 3pm. Mostly sunny, with a high near 45. Northwest wind 6 to 10 mph. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 25.
Sunday
Sunny, with a high near 38.
Sunday Night
Mostly clear, with a low around 20.
Monday
Sunny, with a high near 36.
Monday Night
Mostly clear, with a low around 20.
Tuesday
Mostly sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 38.
Wednesday
Mostly cloudy, with a high near 59.
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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:
6:26 am CST Feb 19, 2026
Forecast Valid:
7am CST Feb 19, 2026-6pm CST Feb 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation