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.

Partly Cloudy

82°F

28°C

Humidity 58%
Wind Speed S 20 mph
Barometer 29.83 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 17 Apr 1:45 pm CDT
Extended Forecast for

Pierron IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 83. South wind around 18 mph, with gusts as high as 25 mph.

    High: 83 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 2am, then showers and possibly a thunderstorm after 2am. Low around 48. South wind 13 to 16 mph becoming west in the evening. Winds could gust as high as 24 mph. Chance of precipitation is 100%.

    Low: 48 °F

    T-storms
    Likely then
    T-storms

  • Saturday

    Saturday: Showers likely, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 58. Breezy, with a northwest wind 16 to 20 mph. Chance of precipitation is 60%.

    High: 58 °F

    Showers
    Likely and
    Breezy then
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 38. Northwest wind 5 to 13 mph, with gusts as high as 20 mph.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 64. West wind 5 to 14 mph, with gusts as high as 21 mph.

    High: 64 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 83. South wind around 18 mph, with gusts as high as 25 mph.
Tonight
Showers and thunderstorms, mainly before 2am, then showers and possibly a thunderstorm after 2am. Low around 48. South wind 13 to 16 mph becoming west in the evening. Winds could gust as high as 24 mph. Chance of precipitation is 100%.
Saturday
Showers likely, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 58. Breezy, with a northwest wind 16 to 20 mph. Chance of precipitation is 60%.
Saturday Night
Mostly clear, with a low around 38. Northwest wind 5 to 13 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 64. West wind 5 to 14 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 40.
Monday
Sunny, with a high near 69.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
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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:
1:16 pm CDT Apr 17, 2026
Forecast Valid:
2pm CDT Apr 17, 2026-6pm CDT Apr 23, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation