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

66°F

19°C

Humidity 50%
Wind Speed S 12 mph
Barometer 30.14 in
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 10 Apr 3:35 am CDT
Extended Forecast for

Pierron IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 59. South wind around 11 mph, with gusts as high as 21 mph.

    Low: 59 °F

    Mostly Cloudy

  • Friday

    Friday: Showers and thunderstorms likely before 4pm, then a chance of showers. Mostly cloudy, with a high near 70. Southwest wind around 10 mph becoming northwest in the afternoon. Chance of precipitation is 60%.

    High: 70 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A slight chance of showers before 10pm, then a chance of showers after 3am. Mostly cloudy, with a low around 49. North wind around 6 mph. Chance of precipitation is 30%.

    Low: 49 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 70. East wind 6 to 9 mph. Chance of precipitation is 30%.

    High: 70 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 59. Southeast wind 6 to 9 mph.

    Low: 59 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79. Breezy.

    High: 79 °F

    Partly Sunny
    then Slight
    Chance
    T-storms and
    Breezy

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.

    Low: 64 °F

    Chance
    Showers

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.

    High: 83 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Mostly cloudy, with a low around 59. South wind around 11 mph, with gusts as high as 21 mph.
Friday
Showers and thunderstorms likely before 4pm, then a chance of showers. Mostly cloudy, with a high near 70. Southwest wind around 10 mph becoming northwest in the afternoon. Chance of precipitation is 60%.
Friday Night
A slight chance of showers before 10pm, then a chance of showers after 3am. Mostly cloudy, with a low around 49. North wind around 6 mph. Chance of precipitation is 30%.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 70. East wind 6 to 9 mph. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 59. Southeast wind 6 to 9 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79. Breezy.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Monday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 84. Breezy.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Pierron IL
 38.78°N 89.57°W (Elev. 512 ft)
Last Update:
1:26 am CDT Apr 10, 2026
Forecast Valid:
3am CDT Apr 10, 2026-6pm CDT Apr 16, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation