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.

Fair

72°F

22°C

Humidity 69%
Wind Speed SW 13 G 20 mph
Barometer 29.94 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 16 Apr 11:50 am CDT
Extended Forecast for

Pierron IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 80. West wind 8 to 10 mph.

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 58. Light south wind.

    Low: 58 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers between 8am and 10am. Mostly sunny, with a high near 83. South wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 20%.

    High: 83 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Friday Night

    Friday Night: Showers and thunderstorms, mainly before 4am, then showers and possibly a thunderstorm after 4am. Low around 50. South wind 13 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.

    Low: 50 °F

    Showers
    Likely then
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms. Partly sunny, with a steady temperature around 56. Northwest wind 14 to 18 mph. Chance of precipitation is 50%.

    High: 56 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before 1am. Mostly clear, with a low around 37.

    Low: 37 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 40.

    Low: 40 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 80. West wind 8 to 10 mph.
Tonight
Mostly clear, with a low around 58. Light south wind.
Friday
A slight chance of showers between 8am and 10am. Mostly sunny, with a high near 83. South wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 20%.
Friday Night
Showers and thunderstorms, mainly before 4am, then showers and possibly a thunderstorm after 4am. Low around 50. South wind 13 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a steady temperature around 56. Northwest wind 14 to 18 mph. Chance of precipitation is 50%.
Saturday Night
A 20 percent chance of showers before 1am. Mostly clear, with a low around 37.
Sunday
Sunny, with a high near 63.
Sunday Night
Clear, with a low around 40.
Monday
Sunny, with a high near 69.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
A 20 percent chance of showers. Mostly clear, with a low around 54.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 77.
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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:
12:06 pm CDT Apr 16, 2026
Forecast Valid:
12pm CDT Apr 16, 2026-6pm CDT Apr 22, 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