National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

35°F

2°C

Humidity 74%
Wind Speed NW 7 mph
Barometer 30.24 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 7 Feb 12:15 am CST
Extended Forecast for

Pierron IL

  • Overnight

    Overnight: Mostly clear, with a low around 23. Northeast wind 6 to 8 mph.

    Low: 23 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 34. Northeast wind around 6 mph becoming light and variable.

    High: 34 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 24. Southeast wind 5 to 9 mph.

    Low: 24 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 43. Southeast wind 7 to 10 mph.

    High: 43 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 27. East wind around 6 mph becoming calm after midnight.

    Low: 27 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly clear, with a low around 23. Northeast wind 6 to 8 mph.
Saturday
Sunny, with a high near 34. Northeast wind around 6 mph becoming light and variable.
Saturday Night
Mostly cloudy, with a low around 24. Southeast wind 5 to 9 mph.
Sunday
Mostly sunny, with a high near 43. Southeast wind 7 to 10 mph.
Sunday Night
Mostly clear, with a low around 27. East wind around 6 mph becoming calm after midnight.
Monday
Sunny, with a high near 54.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 36.
Wednesday
A 30 percent chance of rain, mainly before noon. Mostly cloudy, with a high near 49.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 30.
Thursday
A 30 percent chance of rain. Mostly cloudy, with a high near 46.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 31.
Friday
A 30 percent chance of rain. Mostly cloudy, with a high near 46.
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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:
12:26 am CST Feb 7, 2026
Forecast Valid:
12am CST Feb 7, 2026-6pm CST Feb 13, 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