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.

Light Rain Fog/Mist

52°F

11°C

Humidity 100%
Wind Speed Calm
Barometer 29.81 in (1009.3 mb)
Dewpoint 52°F (11°C)
Visibility 2.00 mi
Last update 25 Nov 5:53 am CST
Extended Forecast for

Smithton IL

  • Today

    Today: Patchy drizzle before 10am. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 59. Calm wind becoming west 5 to 9 mph in the morning.

    High: 59 °F

    Patchy
    Drizzle and
    Patchy Fog
    then Cloudy

  • Tonight

    Tonight: Isolated showers between 8pm and 9pm. Cloudy during the early evening, then gradual clearing, with a low around 35. West wind 8 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.

    Low: 35 °F

    Isolated
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 46. Breezy, with a west wind 13 to 21 mph, with gusts as high as 33 mph.

    High: 46 °F

    Mostly Sunny
    and Breezy
    then Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 28. West wind 6 to 10 mph.

    Low: 28 °F

    Partly Cloudy

  • Thanksgiving Day

    Thanksgiving Day: Sunny, with a high near 43. Northwest wind 6 to 10 mph.

    High: 43 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of snow before midnight, then a chance of rain and snow. Cloudy, with a low around 31. Chance of precipitation is 50%.

    Low: 31 °F

    Slight Chance
    Snow then
    Chance
    Rain/Snow

  • Saturday

    Saturday: Rain, possibly mixed with snow. High near 39. Chance of precipitation is 80%.

    High: 39 °F

    Rain/Snow

Detailed Forecast

Today
Patchy drizzle before 10am. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 59. Calm wind becoming west 5 to 9 mph in the morning.
Tonight
Isolated showers between 8pm and 9pm. Cloudy during the early evening, then gradual clearing, with a low around 35. West wind 8 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 46. Breezy, with a west wind 13 to 21 mph, with gusts as high as 33 mph.
Wednesday Night
Partly cloudy, with a low around 28. West wind 6 to 10 mph.
Thanksgiving Day
Sunny, with a high near 43. Northwest wind 6 to 10 mph.
Thursday Night
Mostly clear, with a low around 22.
Friday
Mostly sunny, with a high near 40.
Friday Night
A slight chance of snow before midnight, then a chance of rain and snow. Cloudy, with a low around 31. Chance of precipitation is 50%.
Saturday
Rain, possibly mixed with snow. High near 39. Chance of precipitation is 80%.
Saturday Night
Rain likely, mainly before midnight. Cloudy, with a low around 30. Chance of precipitation is 60%.
Sunday
A 40 percent chance of rain. Mostly cloudy, with a high near 41.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.
Monday
A 40 percent chance of rain. Mostly cloudy, with a high near 40.
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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:
6:21 am CST Nov 25, 2025
Forecast Valid:
6am CST Nov 25, 2025-6pm CST Dec 1, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation