Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Overcast

34°F

1°C

Humidity 87%
Wind Speed Calm
Barometer 29.93 in
Dewpoint 30°F (-1°C)
Visibility 7.00 mi
Last update 1 Jan 6:45 pm CST
Extended Forecast for

Pierron IL

  • Tonight

    Tonight: Patchy fog before 8pm.  Otherwise, cloudy, with a low around 28. Calm wind becoming north around 5 mph after midnight.

    Low: 28 °F

    Patchy Fog
    then Cloudy

  • Friday

    Friday: Cloudy, with a high near 36. Northeast wind 5 to 7 mph.

    High: 36 °F

    Cloudy

  • Friday Night

    Friday Night: Cloudy, with a low around 27. Northeast wind 5 to 7 mph.

    Low: 27 °F

    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 40. Northeast wind around 6 mph.

    High: 40 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 23. Light north wind.

    Low: 23 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog before 8pm. Otherwise, cloudy, with a low around 28. Calm wind becoming north around 5 mph after midnight.
Friday
Cloudy, with a high near 36. Northeast wind 5 to 7 mph.
Friday Night
Cloudy, with a low around 27. Northeast wind 5 to 7 mph.
Saturday
Mostly sunny, with a high near 40. Northeast wind around 6 mph.
Saturday Night
Mostly clear, with a low around 23. Light north wind.
Sunday
Mostly sunny, with a high near 41.
Sunday Night
Partly cloudy, with a low around 32.
Monday
Mostly sunny, with a high near 56.
Monday Night
Mostly cloudy, with a low around 42.
Tuesday
Partly sunny, with a high near 61.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Partly sunny, with a high near 56.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 41.
Thursday
A 30 percent chance of rain. Mostly cloudy, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
Pierron IL
 38.78°N 89.57°W (Elev. 512 ft)
7:31 pm CST Jan 1, 2026
7pm CST Jan 1, 2026-6pm CST Jan 8, 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