National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

A Few Clouds

66°F

19°C

Humidity 75%
Wind Speed W 6 mph
Barometer 29.72 in (1006.1 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 7 Nov 8:53 am CST
Extended Forecast for

4 Miles WSW Smithton IL

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 71. West wind 5 to 13 mph.

    High: 71 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 43. West wind around 6 mph becoming calm in the evening.

    Low: 43 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, with a high near 69. Calm wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 22 mph.

    High: 69 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 37. Southwest wind 8 to 15 mph becoming northwest after midnight. Winds could gust as high as 22 mph.

    Low: 37 °F

    Chance Rain
    then Mostly
    Cloudy

  • Sunday

    Sunday: A slight chance of rain and snow between noon and 3pm, then a slight chance of snow after 3pm. Mostly sunny, with a high near 42. Northwest wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    High: 42 °F

    Partly Sunny
    then Slight
    Chance
    Rain/Snow

  • Sunday Night

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

    Low: 25 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 42.

    High: 42 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 71. West wind 5 to 13 mph.
Tonight
Increasing clouds, with a low around 43. West wind around 6 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 69. Calm wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 22 mph.
Saturday Night
A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 37. Southwest wind 8 to 15 mph becoming northwest after midnight. Winds could gust as high as 22 mph.
Sunday
A slight chance of rain and snow between noon and 3pm, then a slight chance of snow after 3pm. Mostly sunny, with a high near 42. Northwest wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 25.
Monday
Sunny, with a high near 42.
Monday Night
Mostly clear, with a low around 25.
Veterans Day
Mostly sunny, with a high near 55.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 38.
Thursday
Mostly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Smithton IL
 38.37°N 90.07°W (Elev. 499 ft)
Last Update:
9:01 am CST Nov 7, 2025
Forecast Valid:
9am CST Nov 7, 2025-6pm CST Nov 13, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation