Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

77°F

25°C

Humidity 28%
Wind Speed S 10 mph
Barometer 29.98 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 19 Mar 4:45 pm CDT
Extended Forecast for

Pierron IL

  • Tonight

    Tonight: Increasing clouds, with a low around 49. South wind around 7 mph.

    Low: 49 °F

    Increasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 79. Southwest wind 5 to 13 mph, with gusts as high as 21 mph.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 50. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 50 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 77. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 57. South wind 5 to 9 mph.

    Low: 57 °F

    Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 49. South wind around 7 mph.
Friday
Sunny, with a high near 79. Southwest wind 5 to 13 mph, with gusts as high as 21 mph.
Friday Night
Partly cloudy, with a low around 50. Northwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 77. Calm wind becoming southwest around 6 mph in the afternoon.
Saturday Night
Clear, with a low around 57. South wind 5 to 9 mph.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 39.
Monday
Mostly sunny, with a high near 56.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
Partly sunny, with a high near 58.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
Partly sunny, with a high near 67.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
A 20 percent chance of rain. Sunny, with a high near 74. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Pierron IL
 38.78°N 89.57°W (Elev. 512 ft)
4:36 pm CDT Mar 19, 2026
4pm CDT Mar 19, 2026-6pm CDT Mar 26, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database