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.

Overcast

54°F

12°C

Humidity 94%
Wind Speed NE 10 mph
Barometer 29.95 in
Dewpoint 52°F (11°C)
Visibility 7.00 mi
Wind Chill51°F (11°C)
Last update 1 Apr 8:50 pm CDT
Extended Forecast for

Piasa IL

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms, mainly between 2am and 4am. Cloudy, with a temperature rising to around 61 by 5am. East wind 10 to 14 mph becoming southeast after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 70%.

    Low: 53 °F⇑

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers and thunderstorms before 9am, then a chance of showers between 9am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 75. Breezy, with a south wind 20 to 26 mph, with gusts as high as 38 mph. Chance of precipitation is 50%.

    High: 75 °F

    Breezy.
    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 60. Breezy, with a south wind 16 to 21 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely and
    Breezy

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 80. South wind 8 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 52. South wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.

    Low: 52 °F

    Showers
    Likely then
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a steady temperature around 56. Chance of precipitation is 60%.

    High: 56 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 36.

    Low: 36 °F

    Clear

Detailed Forecast

Tonight
Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms, mainly between 2am and 4am. Cloudy, with a temperature rising to around 61 by 5am. East wind 10 to 14 mph becoming southeast after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 70%.
Thursday
A chance of showers and thunderstorms before 9am, then a chance of showers between 9am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 75. Breezy, with a south wind 20 to 26 mph, with gusts as high as 38 mph. Chance of precipitation is 50%.
Thursday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 60. Breezy, with a south wind 16 to 21 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%.
Friday
A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 80. South wind 8 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.
Friday Night
Showers and possibly a thunderstorm. Low around 52. South wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.
Saturday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a steady temperature around 56. Chance of precipitation is 60%.
Saturday Night
Partly cloudy, with a low around 37.
Sunday
Sunny, with a high near 55.
Sunday Night
Clear, with a low around 36.
Monday
Sunny, with a high near 62.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
Mostly sunny, with a high near 56.
Tuesday Night
Partly cloudy, with a low around 36.
Wednesday
Mostly sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Piasa IL
 39.13°N 90.12°W (Elev. 623 ft)
Last Update:
7:31 pm CDT Apr 1, 2026
Forecast Valid:
9pm CDT Apr 1, 2026-6pm CDT Apr 8, 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