Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

70°F

21°C

Humidity 77%
Wind Speed S 12 mph
Barometer 29.73 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 10 Mar 10:15 pm CDT
Extended Forecast for

3 Miles SSW Piasa IL

  • Tonight

    Tonight: Rain and thunderstorms likely, then rain and possibly a thunderstorm after 3am.  Low around 56. South wind around 16 mph, with gusts as high as 28 mph.  Chance of precipitation is 90%.

    Low: 56 °F

    Mostly Cloudy
    then T-storms

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm before 3pm, then a slight chance of rain between 3pm and 4pm.  Temperature falling to around 46 by 5pm. Breezy, with a west wind 10 to 15 mph becoming northwest 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph.  Chance of precipitation is 90%.

    High: 65 °F

    Rain then
    Chance Rain
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 30. Blustery, with a northwest wind 16 to 21 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 31 mph.

    Low: 30 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Clear

  • Thursday

    Thursday: Sunny, with a high near 53. West wind 5 to 11 mph.

    High: 53 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 42. Breezy, with a south wind 11 to 21 mph, with gusts as high as 31 mph.

    Low: 42 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Friday

    Friday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain and thunderstorms after 1am.  Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Tonight
Rain and thunderstorms likely, then rain and possibly a thunderstorm after 3am. Low around 56. South wind around 16 mph, with gusts as high as 28 mph. Chance of precipitation is 90%.
Wednesday
Rain and possibly a thunderstorm before 3pm, then a slight chance of rain between 3pm and 4pm. Temperature falling to around 46 by 5pm. Breezy, with a west wind 10 to 15 mph becoming northwest 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 90%.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 30. Blustery, with a northwest wind 16 to 21 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 31 mph.
Thursday
Sunny, with a high near 53. West wind 5 to 11 mph.
Thursday Night
Mostly cloudy, with a low around 42. Breezy, with a south wind 11 to 21 mph, with gusts as high as 31 mph.
Friday
Partly sunny, with a high near 58.
Friday Night
Mostly cloudy, with a low around 37.
Saturday
Partly sunny, with a high near 65.
Saturday Night
A 30 percent chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 47.
Sunday
Rain and possibly a thunderstorm. High near 62. Breezy. Chance of precipitation is 80%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 20. Blustery. Chance of precipitation is 30%.
Monday
Sunny, with a high near 33.
Monday Night
Partly cloudy, with a low around 17.
Tuesday
Mostly sunny, with a high near 41.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Piasa IL
 39.08°N 90.15°W (Elev. 610 ft)
9:51 pm CDT Mar 10, 2026
10pm CDT Mar 10, 2026-6pm CDT Mar 17, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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