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.

Mostly Cloudy

70°F

21°C

Humidity 78%
Wind Speed SW 12 mph
Barometer 29.92 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 15 Apr 11:45 am CDT
Extended Forecast for

Pierron IL

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Cloudy, with a high near 81. Southwest wind around 16 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    High: 81 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely before midnight, then showers and possibly a thunderstorm between midnight and 4am, then showers likely after 4am. Low around 63. South wind 9 to 11 mph. Chance of precipitation is 90%.

    Low: 63 °F

    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 1pm. Cloudy through mid morning, then gradual clearing, with a high near 80. Southwest wind 9 to 14 mph. Chance of precipitation is 50%.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 58. South wind 3 to 5 mph.

    Low: 58 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. South wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon.

    High: 84 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.

    Low: 54 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 67. Chance of precipitation is 50%.

    High: 67 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of rain showers before 4am, then a slight chance of rain and snow showers. Partly cloudy, with a low around 39. Chance of precipitation is 20%.

    Low: 39 °F

    Slight Chance
    Showers then
    Slight Chance
    Rain/Snow

  • Sunday

    Sunday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Cloudy, with a high near 81. Southwest wind around 16 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Tonight
Showers and thunderstorms likely before midnight, then showers and possibly a thunderstorm between midnight and 4am, then showers likely after 4am. Low around 63. South wind 9 to 11 mph. Chance of precipitation is 90%.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Cloudy through mid morning, then gradual clearing, with a high near 80. Southwest wind 9 to 14 mph. Chance of precipitation is 50%.
Thursday Night
Mostly clear, with a low around 58. South wind 3 to 5 mph.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. South wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 67. Chance of precipitation is 50%.
Saturday Night
A slight chance of rain showers before 4am, then a slight chance of rain and snow showers. Partly cloudy, with a low around 39. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 60.
Sunday Night
Clear, with a low around 39.
Monday
Sunny, with a high near 68.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Mostly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Pierron IL
 38.78°N 89.57°W (Elev. 512 ft)
Last Update:
10:46 am CDT Apr 15, 2026
Forecast Valid:
12pm CDT Apr 15, 2026-6pm CDT Apr 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation