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.

Fair

64°F

18°C

Humidity 24%
Wind Speed N 7 mph
Barometer 30.26 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 3 Nov 3:50 pm CST
Extended Forecast for

Donnellson IL

  • Tonight

    Tonight: Mostly clear, with a low around 37. North wind around 5 mph becoming calm.

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 68. South wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 68 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 48. Southwest wind 9 to 15 mph, with gusts as high as 26 mph.

    Low: 48 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 70. Southwest wind 7 to 11 mph becoming north in the afternoon.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 38. North wind around 6 mph becoming calm in the evening.

    Low: 38 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: A 50 percent chance of rain and thunderstorms after midnight. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: A 20 percent chance of rain before noon. Mostly sunny, with a high near 67.

    High: 67 °F

    Slight Chance
    Rain then
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 37. North wind around 5 mph becoming calm.
Tuesday
Sunny, with a high near 68. South wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around 48. Southwest wind 9 to 15 mph, with gusts as high as 26 mph.
Wednesday
Sunny, with a high near 70. Southwest wind 7 to 11 mph becoming north in the afternoon.
Wednesday Night
Clear, with a low around 38. North wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 64.
Thursday Night
A 50 percent chance of rain and thunderstorms after midnight. Mostly cloudy, with a low around 51.
Friday
A 20 percent chance of rain before noon. Mostly sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 39.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
A 20 percent chance of rain. Partly cloudy, with a low around 38.
Sunday
Mostly sunny, with a high near 50.
Sunday Night
Mostly clear, with a low around 27.
Monday
Sunny, with a high near 48.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Donnellson IL
 39.04°N 89.47°W (Elev. 610 ft)
Last Update:
3:15 pm CST Nov 3, 2025
Forecast Valid:
4pm CST Nov 3, 2025-6pm CST Nov 10, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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