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.

Overcast

24°F

-4°C

Humidity 77%
Wind Speed E 7 mph
Barometer 30.41 in (1030.2 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 1 Dec 7:53 am CST
Extended Forecast for

2 Miles E Valmeyer IL

  • Today

    Today: A 40 percent chance of snow, mainly after 4pm. Cloudy, with a high near 30. East wind around 5 mph becoming calm in the afternoon.

    High: 30 °F

    Mostly Cloudy
    then Chance
    Snow

  • Tonight

    Tonight: Snow, mainly before 11pm. Low around 20. Calm wind becoming northwest 5 to 7 mph after midnight. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 20 °F

    Snow then
    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 33. Northwest wind 5 to 7 mph becoming calm in the afternoon.

    High: 33 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 22. Calm wind becoming south around 6 mph in the evening.

    Low: 22 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 42. South wind around 6 mph becoming west in the afternoon.

    High: 42 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 25.

    High: 25 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy
    then Chance
    Snow

  • Friday

    Friday: A chance of snow before noon, then a chance of rain and snow. Mostly cloudy, with a high near 36. Chance of precipitation is 30%.

    High: 36 °F

    Chance Snow
    then Chance
    Rain/Snow

Detailed Forecast

Today
A 40 percent chance of snow, mainly after 4pm. Cloudy, with a high near 30. East wind around 5 mph becoming calm in the afternoon.
Tonight
Snow, mainly before 11pm. Low around 20. Calm wind becoming northwest 5 to 7 mph after midnight. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 33. Northwest wind 5 to 7 mph becoming calm in the afternoon.
Tuesday Night
Mostly clear, with a low around 22. Calm wind becoming south around 6 mph in the evening.
Wednesday
Mostly sunny, with a high near 42. South wind around 6 mph becoming west in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 18.
Thursday
Partly sunny, with a high near 25.
Thursday Night
A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 17.
Friday
A chance of snow before noon, then a chance of rain and snow. Mostly cloudy, with a high near 36. Chance of precipitation is 30%.
Friday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 27.
Saturday
Partly sunny, with a high near 42.
Saturday Night
Mostly cloudy, with a low around 27.
Sunday
Mostly cloudy, with a high near 37.
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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:
4:36 am CST Dec 1, 2025
Forecast Valid:
8am CST Dec 1, 2025-6pm CST Dec 7, 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