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.

Light Rain

49°F

9°C

Humidity 91%
Wind Speed Calm
Barometer 29.81 in
Dewpoint 46°F (8°C)
Visibility 7.00 mi
Last update 18 Apr 5:15 am CDT
Extended Forecast for

Pierron IL

  • Overnight

    Overnight: Showers. Steady temperature around 57. West wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.

    Low: 57 °F

    Showers

  • Saturday

    Saturday: Showers likely, mainly before 7am. Cloudy through mid morning, then gradual clearing, with a high near 56. Northwest wind 15 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    High: 56 °F

    Showers
    Likely then
    Mostly Sunny

  • Saturday Night

    Saturday Night: 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.

    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

Detailed Forecast

Overnight
Showers. Steady temperature around 57. West wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
Saturday
Showers likely, mainly before 7am. Cloudy through mid morning, then gradual clearing, with a high near 56. Northwest wind 15 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Saturday Night
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.
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
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ABOUT THIS FORECAST

 
Point Forecast:
Pierron IL
 38.78°N 89.57°W (Elev. 512 ft)
Last Update:
2:26 am CDT Apr 18, 2026
Forecast Valid:
5am CDT Apr 18, 2026-6pm CDT Apr 24, 2026
 
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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