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

48°F

9°C

Humidity 100%
Wind Speed E 9 mph
Barometer 29.93 in
Dewpoint 48°F (9°C)
Visibility 0.75 mi
Wind Chill44°F (7°C)
Last update 27 Dec 11:45 am CST
Extended Forecast for

Pierron IL

  • This Afternoon

    This Afternoon: Cloudy, with a high near 58. Southeast wind 9 to 11 mph, with gusts as high as 20 mph.

    High: 58 °F

    Cloudy

  • Tonight

    Tonight: Cloudy, with a temperature rising to around 62 by 11pm. South wind around 11 mph, with gusts as high as 23 mph.

    Low: 57 °F⇑

    Cloudy

  • Sunday

    Sunday: Rain and thunderstorms likely, then rain and possibly a thunderstorm after 4pm. High near 70. Breezy, with a south wind 11 to 16 mph becoming west 21 to 26 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 80%.

    High: 70 °F

    Slight Chance
    Rain then
    Rain and
    Breezy

  • Sunday Night

    Sunday Night: A chance of rain before 7pm, then showers likely between 7pm and 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 19. Breezy, with a west wind 21 to 29 mph, with gusts as high as 43 mph. Chance of precipitation is 60%.

    Low: 19 °F

    Breezy.
    Showers
    Likely then
    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 27. Breezy, with a northwest wind 18 to 25 mph, with gusts as high as 34 mph.

    High: 27 °F

    Partly Sunny
    and Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 16.

    Low: 16 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 33.

    High: 33 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Cloudy, with a high near 58. Southeast wind 9 to 11 mph, with gusts as high as 20 mph.
Tonight
Cloudy, with a temperature rising to around 62 by 11pm. South wind around 11 mph, with gusts as high as 23 mph.
Sunday
Rain and thunderstorms likely, then rain and possibly a thunderstorm after 4pm. High near 70. Breezy, with a south wind 11 to 16 mph becoming west 21 to 26 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 80%.
Sunday Night
A chance of rain before 7pm, then showers likely between 7pm and 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 19. Breezy, with a west wind 21 to 29 mph, with gusts as high as 43 mph. Chance of precipitation is 60%.
Monday
Partly sunny, with a high near 27. Breezy, with a northwest wind 18 to 25 mph, with gusts as high as 34 mph.
Monday Night
Partly cloudy, with a low around 16.
Tuesday
Sunny, with a high near 33.
Tuesday Night
Mostly clear, with a low around 25.
Wednesday
Mostly sunny, with a high near 42.
Wednesday Night
Mostly cloudy, with a low around 23.
New Year's Day
Mostly sunny, with a high near 33.
Thursday Night
Partly cloudy, with a low around 14.
Friday
Mostly sunny, with a high near 31.
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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:
11:01 am CST Dec 27, 2025
Forecast Valid:
12pm CST Dec 27, 2025-6pm CST Jan 2, 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