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

26°F

-3°C

Humidity 81%
Wind Speed S 6 mph
Barometer 30.34 in (1027.9 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 1 Dec 10:53 am CST
Extended Forecast for

5 Miles SSE Waterloo IL

  • Today

    Today: Snow likely, mainly after 5pm. Cloudy, with a high near 28. Light and variable wind. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.

    High: 28 °F

    Snow Likely

  • Tonight

    Tonight: Snow, mainly before midnight. Low around 20. Calm wind becoming northwest 5 to 7 mph after midnight. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    Low: 20 °F

    Snow then
    Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 31. Northwest wind 5 to 7 mph becoming calm in the afternoon.

    High: 31 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 21. Calm wind becoming south around 6 mph after midnight.

    Low: 21 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 42. South wind 5 to 7 mph becoming light and variable 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 40%.

    High: 36 °F

    Chance Snow
    then Chance
    Rain/Snow

Detailed Forecast

Today
Snow likely, mainly after 5pm. Cloudy, with a high near 28. Light and variable wind. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow, mainly before midnight. Low around 20. Calm wind becoming northwest 5 to 7 mph after midnight. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 31. Northwest wind 5 to 7 mph becoming calm in the afternoon.
Tuesday Night
Mostly clear, with a low around 21. Calm wind becoming south around 6 mph after midnight.
Wednesday
Mostly sunny, with a high near 42. South wind 5 to 7 mph becoming light and variable 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 40%.
Friday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 26.
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:
5 Miles SSE Waterloo IL
 38.26°N 90.11°W (Elev. 597 ft)
Last Update:
10:36 am CST Dec 1, 2025
Forecast Valid:
11am 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