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

48°F

9°C

Humidity 66%
Wind Speed N 13 mph
Barometer 29.98 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 18 Apr 8:45 am CDT
Extended Forecast for

Pierron IL

  • Today

    Today: A 30 percent chance of showers before 9am. Cloudy through mid morning, then gradual clearing, with a high near 56. Northwest wind 16 to 18 mph, with gusts as high as 25 mph.

    High: 56 °F

    Chance
    Showers then
    Mostly Sunny

  • Tonight

    Tonight: Clear, with a low around 38. Northwest wind 8 to 13 mph becoming light and variable after midnight.

    Low: 38 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 65. Light west wind increasing to 11 to 16 mph in the morning. Winds could gust as high as 23 mph.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38. Northwest wind 5 to 8 mph becoming light and variable after midnight.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 64. Calm wind becoming south 5 to 7 mph in the morning.

    High: 64 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

Detailed Forecast

Today
A 30 percent chance of showers before 9am. Cloudy through mid morning, then gradual clearing, with a high near 56. Northwest wind 16 to 18 mph, with gusts as high as 25 mph.
Tonight
Clear, with a low around 38. Northwest wind 8 to 13 mph becoming light and variable after midnight.
Sunday
Sunny, with a high near 65. Light west wind increasing to 11 to 16 mph in the morning. Winds could gust as high as 23 mph.
Sunday Night
Mostly clear, with a low around 38. Northwest wind 5 to 8 mph becoming light and variable after midnight.
Monday
Sunny, with a high near 64. Calm wind becoming south 5 to 7 mph in the morning.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 76. Chance of precipitation is 70%.
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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:
5:41 am CDT Apr 18, 2026
Forecast Valid:
8am CDT Apr 18, 2026-6pm CDT Apr 24, 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