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

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

46°F

8°C

Humidity 51%
Wind Speed S 15 mph
Barometer 29.80 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 13 Mar 2:15 am CDT
Extended Forecast for

Wilsonville IL

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

    NOW until 11:00am Fri

    Wind Advisory

  • Overnight

    Low: 43 °F

    Mostly Cloudy
    and Breezy

  • Friday

    Friday: Partly sunny, with a high near 57. Breezy, with a west wind 15 to 22 mph, with gusts as high as 30 mph.

    High: 57 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 34. Northwest wind 5 to 7 mph becoming light and variable.

    Low: 34 °F

    Partly Cloudy

  • Saturday

    Saturday: Increasing clouds, with a high near 62. East wind 6 to 14 mph.

    High: 62 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 52. South wind 10 to 14 mph, with gusts as high as 24 mph.

    Low: 52 °F

    Mostly Cloudy

  • Sunday

    Sunday: Rain, with thunderstorms also possible after 4pm. High near 67. Breezy. Chance of precipitation is 90%.

    High: 67 °F

    Breezy.
    Chance Rain
    then Rain

  • Sunday Night

    Sunday Night: Rain before 10pm, then snow, possibly mixed with rain between 10pm and 1am, then snow likely after 1am. Some thunder is also possible. Low around 21. Blustery. Chance of precipitation is 90%.

    Low: 21 °F

    Rain/Snow and
    Blustery

  • Monday

    Monday: A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 26. Blustery.

    High: 26 °F

    Chance Snow
    and Blustery

Detailed Forecast

Overnight
Mostly cloudy, with a low around 43. Breezy, with a southwest wind 18 to 22 mph, with gusts as high as 34 mph.
Friday
Partly sunny, with a high near 57. Breezy, with a west wind 15 to 22 mph, with gusts as high as 30 mph.
Friday Night
Partly cloudy, with a low around 34. Northwest wind 5 to 7 mph becoming light and variable.
Saturday
Increasing clouds, with a high near 62. East wind 6 to 14 mph.
Saturday Night
Mostly cloudy, with a low around 52. South wind 10 to 14 mph, with gusts as high as 24 mph.
Sunday
Rain, with thunderstorms also possible after 4pm. High near 67. Breezy. Chance of precipitation is 90%.
Sunday Night
Rain before 10pm, then snow, possibly mixed with rain between 10pm and 1am, then snow likely after 1am. Some thunder is also possible. Low around 21. Blustery. Chance of precipitation is 90%.
Monday
A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 26. Blustery.
Monday Night
Mostly clear, with a low around 11. Blustery.
Tuesday
Mostly sunny, with a high near 33.
Tuesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 25.
Wednesday
Mostly cloudy, with a high near 57.
Wednesday Night
Mostly cloudy, with a low around 37.
Thursday
Sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Wilsonville IL
 39.05°N 89.84°W (Elev. 600 ft)
Last Update:
1:25 am CDT Mar 13, 2026
Forecast Valid:
2am CDT Mar 13, 2026-6pm CDT Mar 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation