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.

Fair

6°F

-14°C

Humidity 63%
Wind Speed NW 12 mph
Barometer 30.38 in (1029.6 mb)
Dewpoint -4°F (-20°C)
Visibility 10.00 mi
Wind Chill-10°F (-23°C)
Last update 26 Jan 12:53 am CST
Extended Forecast for

Smithton IL

Cold Weather Advisory January 26, 06:00pm until January 27, 06:00am
Extreme Cold Warning January 26, 01:51am until January 26, 12:00pm
Click here for hazard details and duration
Cold Weather Advisory
Extreme Cold Warning
  •  
    Extreme Cold Warning January 26, 01:51am until January 26, 12:00pm

    NOW until 12:00pm Mon

    Extreme Cold Warning

  • Overnight

    Low: -7 °F

    Mostly Clear

  • Monday

    Monday: Sunny and cold, with a high near 15. Wind chill values as low as -25. Northwest wind 6 to 9 mph becoming southwest in the afternoon.

    High: 15 °F

    Cold

  • Monday Night

    Monday Night: Clear, with a low around 3. Wind chill values as low as -10. South wind 6 to 10 mph.

    Low: 3 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 31. Southwest wind 7 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.

    High: 31 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around -3. Northwest wind around 6 mph becoming calm in the evening.

    Low: -3 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 28.

    High: 28 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 1.

    Low: 1 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny and cold, with a high near 19.

    High: 19 °F

    Cold

Detailed Forecast

Overnight
Mostly clear, with a low around -7. Wind chill values as low as -20. Northwest wind around 9 mph.
Monday
Sunny and cold, with a high near 15. Wind chill values as low as -25. Northwest wind 6 to 9 mph becoming southwest in the afternoon.
Monday Night
Clear, with a low around 3. Wind chill values as low as -10. South wind 6 to 10 mph.
Tuesday
Sunny, with a high near 31. Southwest wind 7 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.
Tuesday Night
Partly cloudy, with a low around -3. Northwest wind around 6 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 28.
Wednesday Night
Partly cloudy, with a low around 1.
Thursday
Partly sunny and cold, with a high near 19.
Thursday Night
Mostly cloudy, with a low around 3.
Friday
Partly sunny and cold, with a high near 18.
Friday Night
Partly cloudy, with a low around -2.
Saturday
Sunny and cold, with a high near 20.
Saturday Night
Partly cloudy, with a low around 4.
Sunday
Partly sunny, with a high near 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Smithton IL
 38.41°N 89.99°W (Elev. 453 ft)
Last Update:
10:16 pm CST Jan 25, 2026
Forecast Valid:
1am CST Jan 26, 2026-6pm CST Feb 1, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

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Chance of Precipitation