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

72°F

22°C

Humidity 69%
Wind Speed S 14 mph
Barometer 29.52 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 28 Dec 12:50 pm CST
Extended Forecast for

Pierron IL

Wind Advisory December 28, 03:00pm until December 29, 06:00am
Click here for hazard details and duration
Wind Advisory

  • This Afternoon

    This Afternoon: A 50 percent chance of rain and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 71. Breezy, with a southwest wind 20 to 25 mph becoming west. Winds could gust as high as 39 mph.

    High: 71 °F

    Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 19. Breezy, with a west wind 26 to 29 mph, with gusts as high as 41 mph.

    Low: 19 °F

    Decreasing
    Clouds and
    Breezy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 28. Breezy, with a northwest wind 16 to 25 mph, with gusts as high as 37 mph.

    High: 28 °F

    Decreasing
    Clouds and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 17. Northwest wind 8 to 15 mph, with gusts as high as 23 mph.

    Low: 17 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 34. West wind 7 to 10 mph.

    High: 34 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 50 percent chance of rain and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 71. Breezy, with a southwest wind 20 to 25 mph becoming west. Winds could gust as high as 39 mph.
Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 19. Breezy, with a west wind 26 to 29 mph, with gusts as high as 41 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 28. Breezy, with a northwest wind 16 to 25 mph, with gusts as high as 37 mph.
Monday Night
Partly cloudy, with a low around 17. Northwest wind 8 to 15 mph, with gusts as high as 23 mph.
Tuesday
Mostly sunny, with a high near 34. West wind 7 to 10 mph.
Tuesday Night
Mostly clear, with a low around 26.
Wednesday
Partly sunny, with a high near 41.
Wednesday Night
Partly cloudy, with a low around 24.
New Year's Day
Mostly sunny, with a high near 38.
Thursday Night
Partly cloudy, with a low around 22.
Friday
Partly sunny, with a high near 41.
Friday Night
Mostly cloudy, with a low around 27.
Saturday
Mostly sunny, with a high near 42.
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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:
12:56 pm CST Dec 28, 2025
Forecast Valid:
1pm CST Dec 28, 2025-6pm CST Jan 3, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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