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

46°F

8°C

Humidity 76%
Wind Speed N 16 mph
Barometer 29.95 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 11 Mar 1:50 pm CDT
Extended Forecast for

Piasa IL

  • This Afternoon

    This Afternoon: A 50 percent chance of showers. Cloudy, with a steady temperature around 44. Breezy, with a northwest wind around 22 mph, with gusts as high as 32 mph.

    High: 44 °F

    Chance
    Showers and
    Breezy

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 29. Blustery, with a northwest wind 16 to 21 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 31 mph.

    Low: 29 °F

    Decreasing
    Clouds and
    Blustery then
    Clear

  • Thursday

    Thursday: Sunny, with a high near 53. West wind 6 to 13 mph.

    High: 53 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42. Breezy, with a south wind 14 to 22 mph, with gusts as high as 32 mph.

    Low: 42 °F

    Partly Cloudy
    and Breezy

  • Friday

    Friday: Partly sunny, with a high near 58. West wind 14 to 18 mph, with gusts as high as 26 mph.

    High: 58 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 58.

    High: 58 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday

    Sunday: Rain likely and possibly a thunderstorm, then rain after 1pm. High near 64. Breezy. Chance of precipitation is 80%.

    High: 64 °F

    Rain and
    Breezy

Detailed Forecast

This Afternoon
A 50 percent chance of showers. Cloudy, with a steady temperature around 44. Breezy, with a northwest wind around 22 mph, with gusts as high as 32 mph.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 29. Blustery, with a northwest wind 16 to 21 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 31 mph.
Thursday
Sunny, with a high near 53. West wind 6 to 13 mph.
Thursday Night
Partly cloudy, with a low around 42. Breezy, with a south wind 14 to 22 mph, with gusts as high as 32 mph.
Friday
Partly sunny, with a high near 58. West wind 14 to 18 mph, with gusts as high as 26 mph.
Friday Night
Mostly cloudy, with a low around 34.
Saturday
Mostly cloudy, with a high near 58.
Saturday Night
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 48.
Sunday
Rain likely and possibly a thunderstorm, then rain after 1pm. High near 64. Breezy. Chance of precipitation is 80%.
Sunday Night
A chance of rain and snow before 1am. Mostly cloudy, with a low around 22. Blustery. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 33. Breezy.
Monday Night
Mostly clear, with a low around 15.
Tuesday
Partly sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Piasa IL
 39.1°N 90.15°W (Elev. 584 ft)
Last Update:
1:26 pm CDT Mar 11, 2026
Forecast Valid:
2pm CDT Mar 11, 2026-6pm CDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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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