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.

Rain

51°F

11°C

Humidity 95%
Wind Speed N 5 mph
Barometer 29.96 in
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 5 Mar 3:35 am CST
Extended Forecast for

Pierron IL

  • Overnight

    Overnight: Showers and possibly a thunderstorm. Patchy fog. Low around 53. South wind around 7 mph. Chance of precipitation is 90%.

    Low: 53 °F

    Showers and
    Patchy Fog

  • Thursday

    Thursday: Showers and thunderstorms likely before 9am, then a chance of showers between 9am and 10am. Patchy fog before noon. Otherwise, mostly cloudy, with a high near 66. West wind 5 to 10 mph becoming light and variable in the afternoon. Chance of precipitation is 70%.

    High: 66 °F

    Showers
    Likely and
    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 56. Light and variable wind becoming southeast 5 to 9 mph after midnight.

    Low: 56 °F

    Chance
    T-storms

  • Friday

    Friday: A slight chance of showers before 9am, then a slight chance of showers after noon. Partly sunny, with a high near 77. Breezy, with a south wind 10 to 15 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 20%.

    High: 77 °F

    Slight Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: A slight chance of showers before 9pm, then a slight chance of showers and thunderstorms between 9pm and midnight, then showers and possibly a thunderstorm after midnight. Low around 59. South wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 90%.

    Low: 59 °F

    Slight Chance
    T-storms then
    Showers

  • Saturday

    Saturday: Showers likely, mainly before noon. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.

    High: 68 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Patchy fog. Low around 53. South wind around 7 mph. Chance of precipitation is 90%.
Thursday
Showers and thunderstorms likely before 9am, then a chance of showers between 9am and 10am. Patchy fog before noon. Otherwise, mostly cloudy, with a high near 66. West wind 5 to 10 mph becoming light and variable in the afternoon. Chance of precipitation is 70%.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 56. Light and variable wind becoming southeast 5 to 9 mph after midnight.
Friday
A slight chance of showers before 9am, then a slight chance of showers after noon. Partly sunny, with a high near 77. Breezy, with a south wind 10 to 15 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 20%.
Friday Night
A slight chance of showers before 9pm, then a slight chance of showers and thunderstorms between 9pm and midnight, then showers and possibly a thunderstorm after midnight. Low around 59. South wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 90%.
Saturday
Showers likely, mainly before noon. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Sunny, with a high near 62.
Sunday Night
Mostly clear, with a low around 45.
Monday
Sunny, with a high near 74.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 58.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 75. Breezy. Chance of precipitation is 70%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 51. Breezy. Chance of precipitation is 90%.
Wednesday
Showers likely. Cloudy, with a high near 61. Breezy. Chance of precipitation is 70%.
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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:
3:36 am CST Mar 5, 2026
Forecast Valid:
3am CST Mar 5, 2026-6pm CDT Mar 11, 2026
 
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