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

24°F

-4°C

Humidity 62%
Wind Speed NW 13 mph
Barometer 30.18 in (1022.6 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 19 Jan 3:53 am CST
Extended Forecast for

Smithton IL

  • Overnight

    Overnight: Partly cloudy, with a low around 13. Northwest wind 11 to 18 mph, with gusts as high as 29 mph.

    Low: 13 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 22. Blustery, with a northwest wind 16 to 21 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 22 °F

    Sunny and
    Blustery then
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 12. West wind around 5 mph becoming light and variable after midnight.

    Low: 12 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 38. Light south wind becoming southwest 5 to 9 mph in the morning.

    High: 38 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 28. South wind 8 to 13 mph, with gusts as high as 23 mph.

    Low: 28 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 23.

    Low: 23 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 36.

    High: 36 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 13. Northwest wind 11 to 18 mph, with gusts as high as 29 mph.
M.L.King Day
Sunny, with a high near 22. Blustery, with a northwest wind 16 to 21 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 29 mph.
Monday Night
Mostly clear, with a low around 12. West wind around 5 mph becoming light and variable after midnight.
Tuesday
Mostly sunny, with a high near 38. Light south wind becoming southwest 5 to 9 mph in the morning.
Tuesday Night
Mostly cloudy, with a low around 28. South wind 8 to 13 mph, with gusts as high as 23 mph.
Wednesday
Mostly sunny, with a high near 46.
Wednesday Night
Mostly clear, with a low around 23.
Thursday
Sunny, with a high near 36.
Thursday Night
Mostly cloudy, with a low around 19.
Friday
Mostly cloudy, with a high near 28.
Friday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 3.
Saturday
A 20 percent chance of snow. Mostly cloudy and cold, with a high near 15.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 6.
Sunday
Mostly sunny, with a high near 25.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Smithton IL
 38.41°N 89.99°W (Elev. 453 ft)
Last Update:
3:25 am CST Jan 19, 2026
Forecast Valid:
3am CST Jan 19, 2026-6pm CST Jan 25, 2026
 
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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