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.

Light Rain

50°F

10°C

Humidity 88%
Wind Speed N 7 mph
Barometer 30.07 in
Dewpoint 46°F (8°C)
Visibility 7.00 mi
Wind Chill47°F (8°C)
Last update 1 Apr 8:50 am CDT
Extended Forecast for

Wilsonville IL

  • Today

    Today: Showers and possibly a thunderstorm. High near 54. East wind 8 to 11 mph. Chance of precipitation is 90%.

    High: 54 °F

    Showers

  • Tonight

    Tonight: Showers and thunderstorms likely before 1am, then a chance of showers. Mostly cloudy, with a temperature rising to around 63 by 4am. East wind 10 to 14 mph becoming south after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 60%.

    Low: 54 °F⇑

    Showers
    Likely then
    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 75. Breezy, with a south wind 18 to 23 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 80%.

    High: 75 °F

    Breezy.
    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 60. Breezy, with a south wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely and
    Breezy

  • Friday

    Friday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 78. South wind 8 to 17 mph. Chance of precipitation is 70%.

    High: 78 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 53. Chance of precipitation is 90%.

    Low: 53 °F

    Showers
    Likely then
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Mostly cloudy, with a high near 63. Chance of precipitation is 70%.

    High: 63 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 36.

    Low: 36 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

Detailed Forecast

Today
Showers and possibly a thunderstorm. High near 54. East wind 8 to 11 mph. Chance of precipitation is 90%.
Tonight
Showers and thunderstorms likely before 1am, then a chance of showers. Mostly cloudy, with a temperature rising to around 63 by 4am. East wind 10 to 14 mph becoming south after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 60%.
Thursday
A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 75. Breezy, with a south wind 18 to 23 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 80%.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 60. Breezy, with a south wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 60%.
Friday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 78. South wind 8 to 17 mph. Chance of precipitation is 70%.
Friday Night
Showers and possibly a thunderstorm. Low around 53. Chance of precipitation is 90%.
Saturday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Mostly cloudy, with a high near 63. Chance of precipitation is 70%.
Saturday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 36.
Sunday
Sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 33.
Monday
Sunny, with a high near 63.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
Mostly sunny, with a high near 58.
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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:
9:41 am CDT Apr 1, 2026
Forecast Valid:
9am CDT Apr 1, 2026-6pm CDT Apr 7, 2026
 
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