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

74°F

23°C

Humidity 64%
Wind Speed SW 13 G 20 mph
Barometer 29.52 in (999.3 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 28 Dec 12:53 pm CST
Extended Forecast for

5 Miles SW Smithton IL

Wind Advisory December 28, 03:00pm until December 29, 06:00am
Click here for hazard details and duration
Wind Advisory

  • This Afternoon

    This Afternoon: A chance of rain, with thunderstorms also possible after 3pm. Mostly cloudy, with a high near 73. Breezy, with a southwest wind 17 to 24 mph becoming west. Winds could gust as high as 38 mph. Chance of precipitation is 50%.

    High: 73 °F

    Chance Rain
    and Breezy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 20. Breezy, with a west wind 22 to 26 mph, with gusts as high as 41 mph.

    Low: 20 °F

    Decreasing
    Clouds and
    Breezy

  • Monday

    Monday: Mostly sunny, with a high near 29. Blustery, with a northwest wind 16 to 22 mph, with gusts as high as 34 mph.

    High: 29 °F

    Mostly Sunny
    and Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 18. Northwest wind 7 to 14 mph, with gusts as high as 23 mph.

    Low: 18 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 36. West wind around 7 mph.

    High: 36 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A chance of rain, with thunderstorms also possible after 3pm. Mostly cloudy, with a high near 73. Breezy, with a southwest wind 17 to 24 mph becoming west. Winds could gust as high as 38 mph. Chance of precipitation is 50%.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 20. Breezy, with a west wind 22 to 26 mph, with gusts as high as 41 mph.
Monday
Mostly sunny, with a high near 29. Blustery, with a northwest wind 16 to 22 mph, with gusts as high as 34 mph.
Monday Night
Mostly clear, with a low around 18. Northwest wind 7 to 14 mph, with gusts as high as 23 mph.
Tuesday
Sunny, with a high near 36. West wind around 7 mph.
Tuesday Night
Mostly clear, with a low around 27.
Wednesday
Mostly sunny, with a high near 44.
Wednesday Night
Partly cloudy, with a low around 25.
New Year's Day
Mostly sunny, with a high near 41.
Thursday Night
Partly cloudy, with a low around 23.
Friday
Partly sunny, with a high near 44.
Friday Night
Mostly cloudy, with a low around 28.
Saturday
Mostly sunny, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Smithton IL
 38.37°N 90.04°W (Elev. 499 ft)
Last Update:
12:56 pm CST Dec 28, 2025
Forecast Valid:
1pm CST Dec 28, 2025-6pm CST Jan 3, 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