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

37°F

3°C

Humidity 81%
Wind Speed Vrbl 3 mph
Barometer 30.24 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 6 Nov 7:45 am CST
Extended Forecast for

Pierron IL

  • Today

    Today: Increasing clouds, with a high near 64. Southeast wind 5 to 14 mph, with gusts as high as 21 mph.

    High: 64 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A 20 percent chance of rain and thunderstorms after 4am. Increasing clouds, with a low around 52. Southeast wind 8 to 13 mph becoming southwest after midnight. Winds could gust as high as 24 mph.

    Low: 52 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Friday

    Friday: Cloudy through mid morning, then gradual clearing, with a high near 72. West wind 8 to 14 mph, with gusts as high as 21 mph.

    High: 72 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41. West wind around 6 mph becoming calm in the evening.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of rain after noon. Partly sunny, with a high near 66. Light and variable wind becoming southwest 6 to 11 mph in the morning.

    High: 66 °F

    Partly Sunny
    then Chance
    Rain

  • Saturday Night

    Saturday Night: A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain
    then Mostly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 42. Breezy.

    High: 42 °F

    Mostly Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 42.

    High: 42 °F

    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 64. Southeast wind 5 to 14 mph, with gusts as high as 21 mph.
Tonight
A 20 percent chance of rain and thunderstorms after 4am. Increasing clouds, with a low around 52. Southeast wind 8 to 13 mph becoming southwest after midnight. Winds could gust as high as 24 mph.
Friday
Cloudy through mid morning, then gradual clearing, with a high near 72. West wind 8 to 14 mph, with gusts as high as 21 mph.
Friday Night
Mostly clear, with a low around 41. West wind around 6 mph becoming calm in the evening.
Saturday
A 30 percent chance of rain after noon. Partly sunny, with a high near 66. Light and variable wind becoming southwest 6 to 11 mph in the morning.
Saturday Night
A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 32.
Sunday
Mostly sunny, with a high near 42. Breezy.
Sunday Night
Mostly clear, with a low around 22.
Monday
Sunny, with a high near 42.
Monday Night
Mostly clear, with a low around 25.
Veterans Day
Mostly sunny, with a high near 57.
Tuesday Night
Partly cloudy, with a low around 38.
Wednesday
Sunny, with a high near 62.
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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:
6:36 am CST Nov 6, 2025
Forecast Valid:
7am CST Nov 6, 2025-6pm CST Nov 12, 2025
 
Forecast Discussion
 
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Additional Resources

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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