Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
51°F
11°C
| Humidity | 85% |
| Wind Speed | Calm |
| Barometer | 30.35 in |
| Dewpoint | 46°F (8°C) |
| Visibility | 10.00 mi |
| Last update | 20 Oct 3:35 am CDT |
Extended Forecast for
2 Miles S Donnellson IL
Overnight
Low: 45 °F
Cloudy
Tuesday
High: 72 °F
Becoming
SunnyTuesday Night
Low: 45 °F
Clear
Wednesday
High: 72 °F
Sunny
Wednesday Night
Low: 44 °F
Mostly Clear
Thursday
High: 75 °F
Sunny
Thursday Night
Low: 47 °F
Clear
Friday
High: 73 °F
Sunny
Friday Night
Low: 46 °F
Mostly Clear
Detailed Forecast
Overnight
Cloudy, with a low around 45. Calm wind.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 72. Calm wind.
Tuesday Night
Clear, with a low around 45. Calm wind.
Wednesday
Sunny, with a high near 72. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 44. Calm wind.
Thursday
Sunny, with a high near 75.
Thursday Night
Clear, with a low around 47.
Friday
Sunny, with a high near 73.
Friday Night
Mostly clear, with a low around 46.
Saturday
Mostly sunny, with a high near 74.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
Mostly sunny, with a high near 76.
Sunday Night
Mostly cloudy, with a low around 49.
Monday
Mostly sunny, with a high near 72.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles S Donnellson IL
39°N 89.47°W (Elev. 600 ft)
39°N 89.47°W (Elev. 600 ft)
2:31 am CDT Oct 20, 2026
3am CDT Oct 20, 2026-6pm CDT Oct 26, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
