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

61°F

16°C

Humidity 86%
Wind Speed NW 3 mph
Barometer 30.00 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 3 Apr 6:15 am CDT
Extended Forecast for

Pierron IL

  • Today

    Today: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 79. South wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 30%.

    High: 79 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Some of the storms could produce heavy rainfall. Low around 58. South wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    Low: 58 °F

    Chance
    T-storms then
    Heavy Rain

  • Saturday

    Saturday: Showers and possibly a thunderstorm before 1pm, then a slight chance of showers between 1pm and 4pm. Some of the storms could produce heavy rainfall. Temperature falling to around 56 by 5pm. West wind 11 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.

    High: 62 °F⇓

    Heavy Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 38. Northwest wind 7 to 14 mph, with gusts as high as 22 mph.

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 57. Northwest wind 7 to 14 mph.

    High: 57 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 38.

    Low: 38 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 79. South wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 30%.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Some of the storms could produce heavy rainfall. Low around 58. South wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Saturday
Showers and possibly a thunderstorm before 1pm, then a slight chance of showers between 1pm and 4pm. Some of the storms could produce heavy rainfall. Temperature falling to around 56 by 5pm. West wind 11 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.
Saturday Night
Partly cloudy, with a low around 38. Northwest wind 7 to 14 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 57. Northwest wind 7 to 14 mph.
Sunday Night
Clear, with a low around 38.
Monday
Sunny, with a high near 59.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
Mostly sunny, with a high near 53.
Tuesday Night
Partly cloudy, with a low around 38.
Wednesday
Partly sunny, with a high near 67.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 73.
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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:
4:51 am CDT Apr 3, 2026
Forecast Valid:
7am CDT Apr 3, 2026-6pm CDT Apr 9, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation