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

Hazardous Weather Conditions

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

48°F

9°C

Humidity 48%
Wind Speed SE 12 mph
Barometer 29.97 in (1014.9 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 12 Mar 7:54 pm CDT
Extended Forecast for

5 Miles WSW Fidelity IL

Wind Advisory March 12, 10:00pm until March 13, 11:00am
Click here for hazard details and duration
Wind Advisory

  • Tonight

    Tonight: Partly cloudy, with a low around 43. Breezy, with a south wind 15 to 23 mph, with gusts as high as 37 mph.

    Low: 43 °F

    Partly Cloudy
    and Breezy

  • Friday

    Friday: Mostly sunny, with a high near 57. Breezy, with a west wind 15 to 21 mph, with gusts as high as 30 mph.

    High: 57 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 34. Northwest wind 5 to 8 mph becoming east after midnight.

    Low: 34 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 62. Southeast wind 8 to 14 mph, with gusts as high as 21 mph.

    High: 62 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 51. Southeast wind 11 to 15 mph, with gusts as high as 24 mph.

    Low: 51 °F

    Mostly Cloudy

  • Sunday

    Sunday: Rain and possibly a thunderstorm. High near 66. Breezy. Chance of precipitation is 90%.

    High: 66 °F

    Breezy. Rain
    Likely then
    Rain

  • Sunday Night

    Sunday Night: Rain and snow before 1am, then a chance of snow. Some thunder is also possible. Low around 19. Windy. Chance of precipitation is 80%.

    Low: 19 °F

    Rain/Snow and
    Windy

  • Monday

    Monday: A 20 percent chance of snow before 1pm. Partly sunny, with a high near 26. Blustery.

    High: 26 °F

    Slight Chance
    Snow and
    Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 10.

    Low: 10 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 43. Breezy, with a south wind 15 to 23 mph, with gusts as high as 37 mph.
Friday
Mostly sunny, with a high near 57. Breezy, with a west wind 15 to 21 mph, with gusts as high as 30 mph.
Friday Night
Partly cloudy, with a low around 34. Northwest wind 5 to 8 mph becoming east after midnight.
Saturday
Partly sunny, with a high near 62. Southeast wind 8 to 14 mph, with gusts as high as 21 mph.
Saturday Night
Mostly cloudy, with a low around 51. Southeast wind 11 to 15 mph, with gusts as high as 24 mph.
Sunday
Rain and possibly a thunderstorm. High near 66. 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 19. Windy. Chance of precipitation is 80%.
Monday
A 20 percent chance of snow before 1pm. Partly sunny, with a high near 26. Blustery.
Monday Night
Mostly clear, with a low around 10.
Tuesday
Mostly sunny, with a high near 32.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 53.
Wednesday Night
Partly cloudy, with a low around 36.
Thursday
Sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Fidelity IL
 39.13°N 90.24°W (Elev. 600 ft)
Last Update:
7:26 pm CDT Mar 12, 2026
Forecast Valid:
8pm CDT Mar 12, 2026-6pm CDT Mar 19, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation