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

70°F

21°C

Humidity 99%
Wind Speed Calm
Barometer 29.83 in
Dewpoint 70°F (21°C)
Visibility 7.00 mi
Last update 18 Jun 2:15 am CDT
Extended Forecast for

4 Miles SE Donnellson IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 72. South wind around 6 mph.

    Low: 72 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly after 5pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 84. South wind 9 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    High: 84 °F

    Chance
    T-storms then
    Heavy Rain

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before midnight, then a slight chance of showers between midnight and 1am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 65. Southwest wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 60%.

    Low: 65 °F

    Heavy Rain
    then Slight
    Chance
    Showers

  • Juneteenth

    Juneteenth: Sunny, with a high near 82. Northwest wind around 6 mph.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 72. South wind around 6 mph.
Wednesday
Showers and thunderstorms likely, mainly after 5pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 84. South wind 9 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Wednesday Night
Showers and thunderstorms likely before midnight, then a slight chance of showers between midnight and 1am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 65. Southwest wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 60%.
Juneteenth
Sunny, with a high near 82. Northwest wind around 6 mph.
Thursday Night
Mostly clear, with a low around 65. Calm wind.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 71.
Saturday
Sunny, with a high near 91.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Sunny, with a high near 92.
Sunday Night
Mostly clear, with a low around 74.
Monday
Sunny, with a high near 91.
Monday Night
Mostly clear, with a low around 74.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Donnellson IL
 38.99°N 89.42°W (Elev. 558 ft)
Last Update:
10:52 pm CDT Jun 17, 2025
Forecast Valid:
2am CDT Jun 18, 2025-6pm CDT Jun 24, 2025
 
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