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Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fog/Mist

45°F

7°C

Humidity 100%
Wind Speed S 5 mph
Barometer 30.13 in (1020.4 mb)
Dewpoint 45°F (7°C)
Visibility 5.00 mi
Wind Chill42°F (6°C)
Last update 24 Nov 6:53 am CST
Extended Forecast for

2 Miles E Valmeyer IL

Dense Fog Advisory November 24, 07:25am until November 24, 09:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory November 24, 07:25am until November 24, 09:00am

    NOW until 9:00am Mon

    Dense Fog Advisory

  • Today

    High: 51 °F

    Isolated
    Showers and
    Patchy Dense
    Fog then
    Scattered
    Showers

  • Tonight

    Tonight: Showers, mainly before 5am. Patchy fog after 7pm. Low around 51. Southeast wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 100%.

    Low: 51 °F

    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: A 20 percent chance of showers after noon. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 60. Calm wind becoming west 5 to 7 mph in the morning.

    High: 60 °F

    Patchy Fog
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 36. West wind 6 to 15 mph, with gusts as high as 25 mph.

    Low: 36 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 46. West wind 10 to 15 mph, with gusts as high as 26 mph.

    High: 46 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Thanksgiving Day

    Thanksgiving Day: Sunny, with a high near 44.

    High: 44 °F

    Sunny

  • Thursday Night

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

    Low: 25 °F

    Mostly Clear

Detailed Forecast

Today
Isolated showers before 9am, then scattered showers after noon. Patchy dense fog before 10am. Otherwise, cloudy, with a high near 51. South wind 3 to 8 mph. Chance of precipitation is 50%.
Tonight
Showers, mainly before 5am. Patchy fog after 7pm. Low around 51. Southeast wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 100%.
Tuesday
A 20 percent chance of showers after noon. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 60. Calm wind becoming west 5 to 7 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 36. West wind 6 to 15 mph, with gusts as high as 25 mph.
Wednesday
Sunny, with a high near 46. West wind 10 to 15 mph, with gusts as high as 26 mph.
Wednesday Night
Partly cloudy, with a low around 29.
Thanksgiving Day
Sunny, with a high near 44.
Thursday Night
Mostly clear, with a low around 25.
Friday
Mostly sunny, with a high near 41.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 50%.
Saturday
Rain likely, possibly mixed with snow. Cloudy, with a high near 42. Chance of precipitation is 70%.
Saturday Night
Rain likely. Cloudy, with a low around 38. Chance of precipitation is 70%.
Sunday
A 50 percent chance of rain. Mostly cloudy, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Valmeyer IL
 38.31°N 90.27°W (Elev. 699 ft)
Last Update:
6:21 am CST Nov 24, 2025
Forecast Valid:
7am CST Nov 24, 2025-6pm CST Nov 30, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation