Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Mostly Cloudy

70°F

21°C

Humidity 93%
Wind Speed N 5 mph
Barometer 30.09 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 12 Jul 4:35 am CDT
Extended Forecast for

Donnellson IL

  • Today

    Today: Sunny, with a high near 84. Northeast wind 6 to 10 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 64. Northeast wind 5 to 7 mph becoming calm  in the evening.

    Low: 64 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 85. Northeast wind 3 to 8 mph.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 66. Light northeast wind.

    Low: 66 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 88 °F

    Sunny

  • Tuesday Night

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

    Low: 69 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 84. Northeast wind 6 to 10 mph.
Tonight
Clear, with a low around 64. Northeast wind 5 to 7 mph becoming calm in the evening.
Monday
Sunny, with a high near 85. Northeast wind 3 to 8 mph.
Monday Night
Clear, with a low around 66. Light northeast wind.
Tuesday
Sunny, with a high near 88. Calm wind becoming northeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
Sunny, with a high near 90.
Wednesday Night
Mostly clear, with a low around 70.
Thursday
Sunny, with a high near 90.
Thursday Night
Mostly clear, with a low around 71.
Friday
Sunny, with a high near 90.
Friday Night
Mostly clear, with a low around 72.
Saturday
Sunny, with a high near 91.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Donnellson IL
 39.04°N 89.47°W (Elev. 610 ft)
1:26 am CDT Jul 12, 2026
4am CDT Jul 12, 2026-6pm CDT Jul 18, 2026
 
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