Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

19°F

-7°C

Humidity 57%
Wind Speed NW 16 mph
Barometer 30.18 in (1022.5 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill4°F (-16°C)
Last update 17 Mar 3:54 am CDT
Extended Forecast for

Portage Des Sioux MO

  • Today

    Today: Increasing clouds, with a high near 34. Northwest wind 6 to 10 mph becoming south in the afternoon.

    High: 34 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A chance of snow before 3am, then a chance of rain.  Cloudy, with a low around 29. Southeast wind 6 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 40%.

    Low: 29 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Wednesday

    Wednesday: Partly sunny, then gradually becoming sunny, with a high near 64. South wind 8 to 10 mph becoming west in the afternoon.

    High: 64 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 41. Light and variable wind.

    Low: 41 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 74. Light and variable wind becoming southwest 5 to 7 mph in the morning.

    High: 74 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 34. Northwest wind 6 to 10 mph becoming south in the afternoon.
Tonight
A chance of snow before 3am, then a chance of rain. Cloudy, with a low around 29. Southeast wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 64. South wind 8 to 10 mph becoming west in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 41. Light and variable wind.
Thursday
Mostly sunny, with a high near 74. Light and variable wind becoming southwest 5 to 7 mph in the morning.
Thursday Night
Mostly clear, with a low around 45.
Friday
Mostly sunny, with a high near 76.
Friday Night
Mostly clear, with a low around 49.
Saturday
Sunny, with a high near 78.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 75.
Sunday Night
Partly cloudy, with a low around 41.
Monday
Partly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
Portage Des Sioux MO
 38.93°N 90.33°W (Elev. 407 ft)
3:31 am CDT Mar 17, 2026
4am CDT Mar 17, 2026-6pm CDT Mar 23, 2026
 
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Additional Resources

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