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.

A Few Clouds

86°F

30°C

Humidity 40%
Wind Speed SW 8 mph
Barometer 30.18 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 3 Oct 2:50 pm CDT
Extended Forecast for

Wilsonville IL

  • This Afternoon

    This Afternoon: A slight chance of showers and thunderstorms. Sunny, with a high near 88. South wind around 6 mph. Chance of precipitation is 20%.

    High: 88 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 61. South wind 3 to 5 mph.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 85. Light south wind increasing to 5 to 10 mph in the morning.

    High: 85 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 56. South wind 5 to 7 mph.

    Low: 56 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 85. South wind 6 to 15 mph.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 85.

    High: 85 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 61.

    Low: 61 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 78. Chance of precipitation is 30%.

    High: 78 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A slight chance of showers and thunderstorms. Sunny, with a high near 88. South wind around 6 mph. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 61. South wind 3 to 5 mph.
Saturday
Sunny, with a high near 85. Light south wind increasing to 5 to 10 mph in the morning.
Saturday Night
Clear, with a low around 56. South wind 5 to 7 mph.
Sunday
Sunny, with a high near 85. South wind 6 to 15 mph.
Sunday Night
Mostly clear, with a low around 61.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 85.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 61.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 78. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Sunny, with a high near 75.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 78.
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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:
2:36 pm CDT Oct 3, 2025
Forecast Valid:
3pm CDT Oct 3, 2025-6pm CDT Oct 10, 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