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

N/A

Humidity NA
Wind Speed SE 3 mph
Barometer 29.91 in
Dewpoint N/A
Visibility 10.00 mi
Last update 16 Jun 11:35 pm CDT
Extended Forecast for

Wilsonville IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 69. Calm wind.

    Low: 69 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 87. South wind 3 to 6 mph.

    High: 87 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms between 9pm and midnight. Partly cloudy, with a low around 70. South wind around 7 mph. Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers and thunderstorms likely after 4pm. Mostly cloudy, with a high near 83. Southwest wind 9 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.

    High: 83 °F

    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly before 7pm. Mostly cloudy, with a low around 66. West wind 6 to 11 mph. Chance of precipitation is 60%.

    Low: 66 °F

    T-storms
    Likely

  • Juneteenth

    Juneteenth: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 69. Calm wind.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 87. South wind 3 to 6 mph.
Tuesday Night
A slight chance of showers and thunderstorms between 9pm and midnight. Partly cloudy, with a low around 70. South wind around 7 mph. Chance of precipitation is 20%.
Wednesday
A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers and thunderstorms likely after 4pm. Mostly cloudy, with a high near 83. Southwest wind 9 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Wednesday Night
Showers and thunderstorms likely, mainly before 7pm. Mostly cloudy, with a low around 66. West wind 6 to 11 mph. Chance of precipitation is 60%.
Juneteenth
Sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 66.
Friday
Sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 73.
Saturday
Sunny, with a high near 93.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Sunny, with a high near 93.
Sunday Night
Mostly clear, with a low around 73.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 91.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Wilsonville IL
 39.07°N 89.87°W (Elev. 636 ft)
Last Update:
10:21 pm CDT Jun 16, 2025
Forecast Valid:
11pm CDT Jun 16, 2025-6pm CDT Jun 23, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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