National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fog/Mist Rain

72°F

22°C

Humidity 94%
Wind Speed SE 8 mph
Barometer 29.98 in
Dewpoint 70°F (21°C)
Visibility 4.00 mi
Last update 15 Oct 11:50 am CDT
Extended Forecast for

Butler IL

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm, mainly before 3pm, then a chance of showers and thunderstorms after 3pm. High near 78. Southwest wind 8 to 10 mph. Chance of precipitation is 90%.

    High: 78 °F

    Showers

  • Tonight

    Tonight: Showers and thunderstorms likely before midnight, then showers likely and possibly a thunderstorm between midnight and 1am. Increasing clouds, with a low around 43. Southwest wind 10 to 16 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 60%.

    Low: 43 °F

    Showers
    Likely

  • Friday

    Friday: A 30 percent chance of showers, mainly after 4pm. Partly sunny, with a high near 56. Breezy, with a northwest wind 17 to 20 mph.

    High: 56 °F

    Breezy.
    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 34. North wind 7 to 16 mph.

    Low: 34 °F

    Chance
    Showers then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 59. North wind around 5 mph becoming calm in the morning.

    High: 59 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 33.

    Low: 33 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm, mainly before 3pm, then a chance of showers and thunderstorms after 3pm. High near 78. Southwest wind 8 to 10 mph. Chance of precipitation is 90%.
Tonight
Showers and thunderstorms likely before midnight, then showers likely and possibly a thunderstorm between midnight and 1am. Increasing clouds, with a low around 43. Southwest wind 10 to 16 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 60%.
Friday
A 30 percent chance of showers, mainly after 4pm. Partly sunny, with a high near 56. Breezy, with a northwest wind 17 to 20 mph.
Friday Night
A 30 percent chance of showers before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 34. North wind 7 to 16 mph.
Saturday
Sunny, with a high near 59. North wind around 5 mph becoming calm in the morning.
Saturday Night
Clear, with a low around 33.
Sunday
Sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 36.
Monday
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 39.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Butler IL
 39.22°N 89.52°W (Elev. 650 ft)
Last Update:
11:21 am CDT Oct 15, 2026
Forecast Valid:
12pm CDT Oct 15, 2026-6pm CDT Oct 21, 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