Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
A Few Clouds
32°F
0°C
| Humidity | 55% |
| Wind Speed | NW 17 G 25 mph |
| Barometer | 30.40 in |
| Dewpoint | 18°F (-8°C) |
| Visibility | 10.00 mi |
| Wind Chill | 21°F (-6°C) |
| Last update | 10 Nov 9:50 am CST |
Extended Forecast for
Williamson IL
Today
High: 37 °F
Sunny
Tonight
Low: 23 °F
Increasing
CloudsVeterans Day
High: 52 °F
Decreasing
CloudsTuesday Night
Low: 36 °F
Mostly Clear
Wednesday
High: 62 °F
Sunny
Wednesday Night
Low: 33 °F
Mostly Clear
Thursday
High: 61 °F
Partly Sunny
Thursday Night
Low: 46 °F
Partly Cloudy
Friday
High: 72 °F
Mostly Sunny
Detailed Forecast
Today
Sunny, with a high near 37. Northwest wind 10 to 16 mph, with gusts as high as 25 mph.
Tonight
Increasing clouds, with a low around 23. West wind 5 to 7 mph becoming light and variable.
Veterans Day
Mostly cloudy, then gradually becoming sunny, with a high near 52. South wind 8 to 17 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 36. West wind 6 to 10 mph.
Wednesday
Sunny, with a high near 62. West wind 6 to 11 mph.
Wednesday Night
Mostly clear, with a low around 33.
Thursday
Partly sunny, with a high near 61.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Mostly sunny, with a high near 72.
Friday Night
Partly cloudy, with a low around 54.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 51.
Sunday
A 50 percent chance of rain. Partly sunny, with a high near 62.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Williamson IL
38.98°N 89.76°W (Elev. 597 ft)
38.98°N 89.76°W (Elev. 597 ft)
10:26 am CST Nov 10, 2025
10am CST Nov 10, 2025-6pm CST Nov 16, 2025
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