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

28°F

-2°C

Humidity 62%
Wind Speed SE 8 mph
Barometer 30.30 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 8 Feb 12:35 am CST
Extended Forecast for

Pierron IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 24. Southeast wind 7 to 10 mph.

    Low: 24 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 43. Southeast wind 9 to 13 mph.

    High: 43 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 26. East wind 5 to 7 mph becoming calm after midnight.

    Low: 26 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 52. Calm wind becoming south around 6 mph in the afternoon.

    High: 52 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 38. South wind around 7 mph becoming southwest after midnight.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 24. Southeast wind 7 to 10 mph.
Sunday
Partly sunny, with a high near 43. Southeast wind 9 to 13 mph.
Sunday Night
Partly cloudy, with a low around 26. East wind 5 to 7 mph becoming calm after midnight.
Monday
Mostly sunny, with a high near 52. Calm wind becoming south around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 38. South wind around 7 mph becoming southwest after midnight.
Tuesday
Mostly sunny, with a high near 57.
Tuesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 32.
Wednesday
Partly sunny, with a high near 49.
Wednesday Night
Mostly cloudy, with a low around 31.
Thursday
A 30 percent chance of rain, mainly after noon. Mostly cloudy, with a high near 45.
Thursday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 30.
Friday
A 20 percent chance of rain. Partly sunny, with a high near 47.
Friday Night
A 30 percent chance of rain. Partly cloudy, with a low around 29.
Saturday
A 40 percent chance of rain. Partly sunny, with a high near 46.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Pierron IL
 38.78°N 89.57°W (Elev. 512 ft)
Last Update:
12:26 am CST Feb 8, 2026
Forecast Valid:
12am CST Feb 8, 2026-6pm CST Feb 14, 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