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.

Partly Cloudy

54°F

12°C

Humidity 89%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 10 May 4:55 am CDT
Extended Forecast for

Donnellson IL

  • Today

    Today: Increasing clouds, with a high near 67. North wind 6 to 8 mph.

    High: 67 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 44. Light north wind.

    Low: 44 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 71. Calm wind becoming west around 6 mph in the afternoon.

    High: 71 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 47. Light and variable wind.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77. Southwest wind 5 to 14 mph.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 55.

    Low: 55 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 67. North wind 6 to 8 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 44. Light north wind.
Monday
Sunny, with a high near 71. Calm wind becoming west around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 47. Light and variable wind.
Tuesday
Sunny, with a high near 77. Southwest wind 5 to 14 mph.
Tuesday Night
A 50 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 55.
Wednesday
Sunny, with a high near 72.
Wednesday Night
Clear, with a low around 46.
Thursday
Sunny, with a high near 71.
Thursday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 53.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 80.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 62.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Donnellson IL
 39.04°N 89.47°W (Elev. 610 ft)
Last Update:
4:21 am CDT May 10, 2026
Forecast Valid:
5am CDT May 10, 2026-6pm CDT May 16, 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