Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
63°F
17°C
| Humidity | 83% |
| Wind Speed | N 5 mph |
| Barometer | 30.01 in |
| Dewpoint | 57°F (14°C) |
| Visibility | 10.00 mi |
| Last update | 27 Sep 9:50 pm CDT |
Extended Forecast for
Alton ILSimilar City Names
Tonight
Low: 58 °F
Clear
Sunday
High: 88 °F
Sunny
Sunday Night
Low: 58 °F
Clear
Monday
High: 89 °F
Sunny
Monday Night
Low: 60 °F
Mostly Clear
Tuesday
High: 89 °F
Sunny
Tuesday Night
Low: 61 °F
Partly Cloudy
Wednesday
High: 86 °F
Mostly Sunny
Wednesday Night
Low: 58 °F
Partly Cloudy
Detailed Forecast
Tonight
Clear, with a low around 58. Calm wind.
Sunday
Sunny, with a high near 88. Calm wind becoming southeast around 6 mph in the afternoon.
Sunday Night
Clear, with a low around 58. East wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 89. Calm wind becoming east around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 60. Light northeast wind.
Tuesday
Sunny, with a high near 89.
Tuesday Night
Partly cloudy, with a low around 61.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
Sunny, with a high near 84.
Thursday Night
Clear, with a low around 56.
Friday
Sunny, with a high near 84.
Friday Night
Clear, with a low around 59.
Saturday
Sunny, with a high near 83.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Alton ILSimilar City Names
38.91°N 90.16°W (Elev. 505 ft)
38.91°N 90.16°W (Elev. 505 ft)
8:06 pm CDT Sep 27, 2025
10pm CDT Sep 27, 2025-6pm CDT Oct 4, 2025
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