Hazardous Weather Conditions
Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Partly Cloudy
61°F
16°C
| Humidity | 59% |
| Wind Speed | S 10 mph |
| Barometer | 30.23 in |
| Dewpoint | 46°F (8°C) |
| Visibility | 10.00 mi |
| Last update | 10 Oct 11:50 am CDT |
Extended Forecast for
Alton IL
This Afternoon
High: 76 °F
Partly Sunny
Tonight
Low: 54 °F
Decreasing
CloudsSaturday
High: 78 °F
Mostly Sunny
Saturday Night
Low: 51 °F
Mostly Clear
Sunday
High: 81 °F
Sunny
Sunday Night
Low: 58 °F
Mostly Clear
Columbus Day
High: 81 °F
Mostly Sunny
Monday Night
Low: 58 °F
Partly Cloudy
Tuesday
High: 78 °F
Mostly Sunny
Detailed Forecast
This Afternoon
Partly sunny, with a high near 76. Southwest wind 6 to 9 mph.
Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 54. Light and variable wind.
Saturday
Mostly sunny, with a high near 78. Northeast wind 3 to 6 mph.
Saturday Night
Mostly clear, with a low around 51. East wind 3 to 5 mph.
Sunday
Sunny, with a high near 81. Southeast wind 5 to 8 mph.
Sunday Night
Mostly clear, with a low around 58.
Columbus Day
Mostly sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
Partly cloudy, with a low around 57.
Wednesday
Mostly sunny, with a high near 76.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Sunny, with a high near 79.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Alton IL
38.91°N 90.16°W (Elev. 505 ft)
38.91°N 90.16°W (Elev. 505 ft)
11:46 am CDT Oct 10, 2025
12pm CDT Oct 10, 2025-6pm CDT Oct 16, 2025
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