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

53°F

12°C

Humidity 40%
Wind Speed E 17 G 28 mph
Barometer 30.05 in (1017.6 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 14 Mar 11:54 am CDT
Extended Forecast for

2 Miles WNW Fidelity IL

Wind Advisory March 15, 10:00am until March 16, 12:00pm
Click here for hazard details and duration
Wind Advisory

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 60. Southeast wind around 16 mph, with gusts as high as 24 mph.

    High: 60 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 52. South wind 13 to 18 mph, with gusts as high as 28 mph.

    Low: 52 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Rain and thunderstorms likely before 3pm, then rain and possibly a thunderstorm between 3pm and 4pm, then rain after 4pm. High near 65. Breezy, with a south wind 21 to 28 mph, with gusts as high as 40 mph. Chance of precipitation is 90%.

    High: 65 °F

    Breezy.
    Slight Chance
    T-storms then
    Rain

  • Sunday Night

    Sunday Night: Rain before 9pm, then a chance of rain and snow between 9pm and 10pm, then a chance of snow after 10pm. Low around 18. Windy, with a west wind 30 to 32 mph, with gusts as high as 48 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 18 °F

    Windy.
    Rain/Snow
    then Chance
    Snow

  • Monday

    Monday: A 30 percent chance of snow, mainly between 7am and 1pm. Mostly cloudy, with a high near 25. Windy, with a northwest wind 26 to 32 mph, with gusts as high as 45 mph.

    High: 25 °F

    Chance Snow
    and Windy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 10. Blustery.

    Low: 10 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 26.

    Low: 26 °F

    Chance Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 60. Southeast wind around 16 mph, with gusts as high as 24 mph.
Tonight
Increasing clouds, with a low around 52. South wind 13 to 18 mph, with gusts as high as 28 mph.
Sunday
Rain and thunderstorms likely before 3pm, then rain and possibly a thunderstorm between 3pm and 4pm, then rain after 4pm. High near 65. Breezy, with a south wind 21 to 28 mph, with gusts as high as 40 mph. Chance of precipitation is 90%.
Sunday Night
Rain before 9pm, then a chance of rain and snow between 9pm and 10pm, then a chance of snow after 10pm. Low around 18. Windy, with a west wind 30 to 32 mph, with gusts as high as 48 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Monday
A 30 percent chance of snow, mainly between 7am and 1pm. Mostly cloudy, with a high near 25. Windy, with a northwest wind 26 to 32 mph, with gusts as high as 45 mph.
Monday Night
Partly cloudy, with a low around 10. Blustery.
Tuesday
Mostly sunny, with a high near 33.
Tuesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 26.
Wednesday
Mostly sunny, with a high near 62.
Wednesday Night
Mostly clear, with a low around 37.
Thursday
Sunny, with a high near 68.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Fidelity IL
 39.15°N 90.18°W (Elev. 610 ft)
Last Update:
11:41 am CDT Mar 14, 2026
Forecast Valid:
12pm CDT Mar 14, 2026-6pm CDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation