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.

Fog/Mist

50°F

10°C

Humidity 95%
Wind Speed Calm
Barometer 30.09 in
Dewpoint 49°F (9°C)
Visibility 4.00 mi
Last update 4 Mar 6:15 am CST
Extended Forecast for

Pierron IL

  • Today

    Today: Showers and thunderstorms before 3pm, then showers and possibly a thunderstorm, mainly after 3pm. Patchy fog before 1pm. High near 61. East wind 5 to 7 mph becoming southwest in the afternoon. Chance of precipitation is 90%.

    High: 61 °F

    Chance
    T-storms and
    Patchy Fog
    then Showers
    and Patchy
    Fog

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 9pm. Patchy fog after 8pm. Low around 54. South wind 5 to 7 mph. Chance of precipitation is 90%.

    Low: 54 °F

    Showers and
    Patchy Fog

  • Thursday

    Thursday: Showers likely, mainly before 9am. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 65. West wind 5 to 11 mph. Chance of precipitation is 70%.

    High: 65 °F

    Showers
    Likely and
    Patchy Fog
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 57. Light south wind increasing to 5 to 9 mph in the evening. Chance of precipitation is 60%.

    Low: 57 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday

    Friday: A 40 percent chance of showers, mainly before noon. Partly sunny, with a high near 77. Breezy, with a south wind 10 to 15 mph increasing to 17 to 22 mph in the morning. Winds could gust as high as 29 mph.

    High: 77 °F

    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: A chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then showers and possibly a thunderstorm after midnight. Low around 55. Chance of precipitation is 90%.

    Low: 55 °F

    Chance
    Showers then
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers before noon. Mostly cloudy, with a high near 64.

    High: 64 °F

    Chance
    Showers then
    Partly Sunny

  • Saturday Night

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

    Low: 39 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

Detailed Forecast

Today
Showers and thunderstorms before 3pm, then showers and possibly a thunderstorm, mainly after 3pm. Patchy fog before 1pm. High near 61. East wind 5 to 7 mph becoming southwest in the afternoon. Chance of precipitation is 90%.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 9pm. Patchy fog after 8pm. Low around 54. South wind 5 to 7 mph. Chance of precipitation is 90%.
Thursday
Showers likely, mainly before 9am. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 65. West wind 5 to 11 mph. Chance of precipitation is 70%.
Thursday Night
A chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 57. Light south wind increasing to 5 to 9 mph in the evening. Chance of precipitation is 60%.
Friday
A 40 percent chance of showers, mainly before noon. Partly sunny, with a high near 77. Breezy, with a south wind 10 to 15 mph increasing to 17 to 22 mph in the morning. Winds could gust as high as 29 mph.
Friday Night
A chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then showers and possibly a thunderstorm after midnight. Low around 55. Chance of precipitation is 90%.
Saturday
A 50 percent chance of showers before noon. Mostly cloudy, with a high near 64.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Sunny, with a high near 64.
Sunday Night
Mostly clear, with a low around 46.
Monday
Sunny, with a high near 75.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 59.
Tuesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 75. Breezy. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
Pierron IL
 38.78°N 89.57°W (Elev. 512 ft)
Last Update:
4:36 am CST Mar 4, 2026
Forecast Valid:
6am CST Mar 4, 2026-6pm CDT Mar 10, 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