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Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Partly Cloudy
84°F
29°C
| Humidity | 58% |
| Wind Speed | NE 15 mph |
| Barometer | 30.12 in |
| Dewpoint | 68°F (20°C) |
| Visibility | 10.00 mi |
| Heat Index | 87°F (31°C) |
| Last update | 12 Jul 4:50 pm CDT |
Extended Forecast for
Donnellson IL
Tonight
Low: 64 °F
Clear
Monday
High: 85 °F
Sunny
Monday Night
Low: 65 °F
Clear
Tuesday
High: 88 °F
Sunny
Tuesday Night
Low: 68 °F
Clear
Wednesday
High: 89 °F
Sunny
Wednesday Night
Low: 70 °F
Mostly Clear
Thursday
High: 90 °F
Sunny
Thursday Night
Low: 70 °F
Mostly Clear
Detailed Forecast
Tonight
Clear, with a low around 64. North wind 3 to 8 mph.
Monday
Sunny, with a high near 85. Northeast wind 3 to 8 mph.
Monday Night
Clear, with a low around 65. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 88. Calm wind becoming northeast around 6 mph in the afternoon.
Tuesday Night
Clear, with a low around 68. Calm wind.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Mostly clear, with a low around 70.
Thursday
Sunny, with a high near 90.
Thursday Night
Mostly clear, with a low around 70.
Friday
Sunny, with a high near 90.
Friday Night
Mostly clear, with a low around 71.
Saturday
Sunny, with a high near 90.
Saturday Night
Mostly clear, with a low around 70.
Sunday
Sunny, with a high near 89.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Donnellson IL
39.04°N 89.47°W (Elev. 610 ft)
39.04°N 89.47°W (Elev. 610 ft)
4:46 pm CDT Jul 12, 2026
4pm CDT Jul 12, 2026-6pm CDT Jul 19, 2026
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