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

N/A

Humidity NA
Wind Speed Calm
Barometer 30.02 in
Dewpoint N/A
Visibility 10.00 mi
Last update 15 Jun 11:35 pm CDT
Extended Forecast for

3 Miles S Donnellson IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 68. Light east wind.

    Low: 68 °F

    Mostly Cloudy

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 81. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 81 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 66. Southeast wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 88. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 88 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. South wind around 7 mph.

    Low: 71 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 85. Chance of precipitation is 60%.

    High: 85 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

    Low: 68 °F

    T-storms
    Likely

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 68. Light east wind.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 81. Calm wind becoming southeast around 5 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 66. Southeast wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 88. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. South wind around 7 mph.
Wednesday
Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 85. Chance of precipitation is 60%.
Wednesday Night
Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Juneteenth
Mostly sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 64.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 71.
Saturday
Sunny, with a high near 92.
Saturday Night
Mostly clear, with a low around 73.
Sunday
Sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Donnellson IL
 39°N 89.47°W (Elev. 600 ft)
Last Update:
10:51 pm CDT Jun 15, 2025
Forecast Valid:
11pm CDT Jun 15, 2025-6pm CDT Jun 22, 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