Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

32°F

0°C

Humidity 69%
Wind Speed NE 13 G 23 mph
Barometer 30.40 in (1029.6 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 1 Mar 8:54 am CST
Extended Forecast for

4 Miles E Portage Des Sioux MO

Winter Weather Advisory March 1, 06:00pm until March 2, 06:00am
Click here for hazard details and duration
Winter Weather Advisory
  • Today

    Today: Mostly cloudy, with a high near 48. Northeast wind 11 to 15 mph, with gusts as high as 22 mph.

    High: 48 °F

    Mostly Cloudy

  • Tonight

    Tonight: Rain and snow, becoming all rain after 3am.  Low around 33. East wind 9 to 11 mph.  Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    Low: 33 °F

    Rain/Snow

  • Monday

    Monday: A chance of rain, mainly before 9am, then a slight chance of showers after noon.  Cloudy, with a high near 47. East wind 7 to 10 mph.  Chance of precipitation is 40%.

    High: 47 °F

    Chance Rain

  • Monday Night

    Monday Night: Showers.  Low around 41. East wind around 6 mph.  Chance of precipitation is 80%.

    Low: 41 °F

    Showers

  • Tuesday

    Tuesday: Showers.  High near 63. South wind 6 to 10 mph.  Chance of precipitation is 80%.

    High: 63 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely, then showers and possibly a thunderstorm after midnight.  Low around 54. Chance of precipitation is 80%.

    Low: 54 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm.  High near 68. Chance of precipitation is 80%.

    High: 68 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 50. Chance of precipitation is 70%.

    Low: 50 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely, mainly before noon.  Partly sunny, with a high near 69. Chance of precipitation is 60%.

    High: 69 °F

    Showers
    Likely

Detailed Forecast

Today
Mostly cloudy, with a high near 48. Northeast wind 11 to 15 mph, with gusts as high as 22 mph.
Tonight
Rain and snow, becoming all rain after 3am. Low around 33. East wind 9 to 11 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Monday
A chance of rain, mainly before 9am, then a slight chance of showers after noon. Cloudy, with a high near 47. East wind 7 to 10 mph. Chance of precipitation is 40%.
Monday Night
Showers. Low around 41. East wind around 6 mph. Chance of precipitation is 80%.
Tuesday
Showers. High near 63. South wind 6 to 10 mph. Chance of precipitation is 80%.
Tuesday Night
Showers likely, then showers and possibly a thunderstorm after midnight. Low around 54. Chance of precipitation is 80%.
Wednesday
Showers and possibly a thunderstorm. High near 68. Chance of precipitation is 80%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.
Thursday
Showers likely, mainly before noon. Partly sunny, with a high near 69. Chance of precipitation is 60%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 72. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.
Saturday
Showers likely. Cloudy, with a high near 64. Chance of precipitation is 60%.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Portage Des Sioux MO
 38.93°N 90.27°W (Elev. 407 ft)
8:26 am CST Mar 1, 2026
9am CST Mar 1, 2026-6pm CST Mar 7, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

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