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

51°F

11°C

Humidity 36%
Wind Speed S 8 mph
Barometer 30.25 in (1024.4 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 12 Mar 1:53 pm CDT
Extended Forecast for

5 Miles SW Smithton IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 54. Southwest wind around 8 mph.

    High: 54 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 43. Breezy, with a south wind 10 to 15 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 30 mph.

    Low: 43 °F

    Mostly Clear
    then Partly
    Cloudy and
    Breezy

  • Friday

    Friday: Mostly sunny, with a high near 61. West wind 11 to 15 mph, with gusts as high as 25 mph.

    High: 61 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 35. Northwest wind around 6 mph becoming calm in the evening.

    Low: 35 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 65. Southeast wind 6 to 11 mph.

    High: 65 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain before 10am, then a chance of rain and thunderstorms between 10am and 1pm, then rain and possibly a thunderstorm after 1pm. High near 68. Breezy. Chance of precipitation is 90%.

    High: 68 °F

    Breezy.
    Chance Rain
    then Rain

  • Sunday Night

    Sunday Night: Rain and snow before 1am, then a chance of snow. Some thunder is also possible. Low around 22. Blustery. Chance of precipitation is 80%.

    Low: 22 °F

    Rain/Snow and
    Blustery

  • Monday

    Monday: Partly sunny, with a high near 30. Blustery.

    High: 30 °F

    Partly Sunny
    and Blustery

Detailed Forecast

This Afternoon
Sunny, with a high near 54. Southwest wind around 8 mph.
Tonight
Partly cloudy, with a low around 43. Breezy, with a south wind 10 to 15 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 30 mph.
Friday
Mostly sunny, with a high near 61. West wind 11 to 15 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 35. Northwest wind around 6 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 65. Southeast wind 6 to 11 mph.
Saturday Night
Mostly cloudy, with a low around 54.
Sunday
A chance of rain before 10am, then a chance of rain and thunderstorms between 10am and 1pm, then rain and possibly a thunderstorm after 1pm. High near 68. Breezy. Chance of precipitation is 90%.
Sunday Night
Rain and snow before 1am, then a chance of snow. Some thunder is also possible. Low around 22. Blustery. Chance of precipitation is 80%.
Monday
Partly sunny, with a high near 30. Blustery.
Monday Night
Mostly clear, with a low around 13.
Tuesday
Mostly sunny, with a high near 35.
Tuesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 55.
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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:
2:00 pm CDT Mar 12, 2026
Forecast Valid:
2pm CDT Mar 12, 2026-6pm CDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation