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

54°F

12°C

Humidity 44%
Wind Speed E 9 mph
Barometer 30.31 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 7 Apr 4:50 pm CDT
Extended Forecast for

Pierron IL

  • Tonight

    Tonight: Partly cloudy, with a low around 40. East wind 7 to 9 mph.

    Low: 40 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 71. Southeast wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 71 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52. South wind 10 to 13 mph, with gusts as high as 21 mph.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 75. South wind 10 to 14 mph.

    High: 75 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 57. South wind around 9 mph.

    Low: 57 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.

    High: 70 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 51. Chance of precipitation is 30%.

    Low: 51 °F

    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 72.

    High: 72 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 40. East wind 7 to 9 mph.
Wednesday
Mostly sunny, with a high near 71. Southeast wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 52. South wind 10 to 13 mph, with gusts as high as 21 mph.
Thursday
Mostly sunny, with a high near 75. South wind 10 to 14 mph.
Thursday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 57. South wind around 9 mph.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 51. Chance of precipitation is 30%.
Saturday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 72.
Saturday Night
Partly cloudy, with a low around 58.
Sunday
Partly sunny, with a high near 79.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Monday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Breezy.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 79. Chance of precipitation is 60%.
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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:
1:26 pm CDT Apr 7, 2026
Forecast Valid:
5pm CDT Apr 7, 2026-6pm CDT Apr 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