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Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Light Snow and Breezy

28°F

-2°C

Humidity 69%
Wind Speed NW 24 G 38 mph
Barometer 29.78 in (1008.5 mb)
Dewpoint 19°F (-7°C)
Visibility 9.00 mi
Wind Chill14°F (-10°C)
Last update 16 Mar 4:53 am CDT
Extended Forecast for

Waterloo IL

Wind Advisory March 16, 05:07am until March 16, 12:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory March 16, 05:07am until March 16, 12:00pm

    NOW until 12:00pm Mon

    Wind Advisory

  • Today

    High: 28 °F

    Blustery.
    Slight Chance
    Snow then
    Mostly Cloudy

  • Tonight

    Tonight: Partly cloudy, with a low around 15. Northwest wind 11 to 17 mph, with gusts as high as 25 mph.

    Low: 15 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 37. Northwest wind 5 to 9 mph becoming southwest in the afternoon.

    High: 37 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow before 10pm, then a chance of rain and snow between 10pm and 4am, then a chance of rain after 4am. Mostly cloudy, with a low around 32. Southeast wind 6 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    Low: 32 °F

    Chance
    Rain/Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 64. South wind 8 to 11 mph becoming west in the afternoon. Winds could gust as high as 22 mph.

    High: 64 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Today
A chance of flurries with a slight chance of snow before 9am, then a slight chance of snow between 9am and 11am. Cloudy, with a high near 28. Blustery, with a northwest wind 21 to 26 mph, with gusts as high as 40 mph. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 15. Northwest wind 11 to 17 mph, with gusts as high as 25 mph.
Tuesday
Mostly sunny, with a high near 37. Northwest wind 5 to 9 mph becoming southwest in the afternoon.
Tuesday Night
A chance of snow before 10pm, then a chance of rain and snow between 10pm and 4am, then a chance of rain after 4am. Mostly cloudy, with a low around 32. Southeast wind 6 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 64. South wind 8 to 11 mph becoming west in the afternoon. Winds could gust as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
Sunny, with a high near 72.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 73.
Friday Night
Partly cloudy, with a low around 53.
Saturday
Sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Waterloo IL
 38.35°N 90.16°W (Elev. 650 ft)
Last Update:
3:56 am CDT Mar 16, 2026
Forecast Valid:
5am CDT Mar 16, 2026-6pm CDT Mar 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation