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.

Fair

58°F

14°C

Humidity 57%
Wind Speed SE 7 mph
Barometer 29.96 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 15 May 1:55 am CDT
Extended Forecast for

3 Miles ESE Pierron IL

  • Overnight

    Overnight: Partly cloudy, with a low around 54. Southeast wind around 8 mph.

    Low: 54 °F

    Partly Cloudy

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms, mainly before 9am. Partly sunny, with a high near 81. East wind 9 to 15 mph becoming south in the afternoon. Winds could gust as high as 22 mph.

    High: 81 °F

    Chance
    T-storms then
    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 66. South wind 8 to 10 mph.

    Low: 66 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely before 3pm, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 82. Southwest wind 8 to 10 mph. Chance of precipitation is 70%.

    High: 82 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 64. South wind 5 to 8 mph.

    Low: 64 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: Sunny, with a high near 88. Breezy.

    High: 88 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Breezy.

    High: 88 °F

    Breezy.
    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Partly cloudy, with a low around 54. Southeast wind around 8 mph.
Friday
A 50 percent chance of showers and thunderstorms, mainly before 9am. Partly sunny, with a high near 81. East wind 9 to 15 mph becoming south in the afternoon. Winds could gust as high as 22 mph.
Friday Night
A 20 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 66. South wind 8 to 10 mph.
Saturday
Showers and thunderstorms likely before 3pm, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 82. Southwest wind 8 to 10 mph. Chance of precipitation is 70%.
Saturday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 64. South wind 5 to 8 mph.
Sunday
Sunny, with a high near 88. Breezy.
Sunday Night
Mostly clear, with a low around 69.
Monday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Breezy.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 71.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85. Breezy. Chance of precipitation is 70%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 75.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Thursday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Pierron IL
 38.75°N 89.52°W (Elev. 476 ft)
Last Update:
1:26 am CDT May 15, 2026
Forecast Valid:
2am CDT May 15, 2026-6pm CDT May 21, 2026
 
Forecast Discussion
 
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Additional Resources

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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