Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
46°F
8°C
| Humidity | 80% |
| Wind Speed | E 3 mph |
| Barometer | 30.38 in |
| Dewpoint | 40°F (4°C) |
| Visibility | 10.00 mi |
| Last update | 18 Oct 11:35 pm CDT |
Extended Forecast for
3 Miles N West Alton MO
Tonight
Low: 42 °F
Clear
Monday
High: 73 °F
Patchy Fog
then SunnyMonday Night
Low: 46 °F
Partly Cloudy
Tuesday
High: 75 °F
Sunny
Tuesday Night
Low: 47 °F
Mostly Clear
Wednesday
High: 77 °F
Sunny
Wednesday Night
Low: 48 °F
Clear
Thursday
High: 78 °F
Sunny
Thursday Night
Low: 50 °F
Clear
Detailed Forecast
Tonight
Clear, with a low around 42. Southeast wind around 5 mph becoming calm after midnight.
Monday
Patchy fog before 8am. Otherwise, sunny, with a high near 73. Light and variable wind.
Monday Night
Partly cloudy, with a low around 46. Calm wind.
Tuesday
Sunny, with a high near 75. Light east wind.
Tuesday Night
Mostly clear, with a low around 47. Calm wind.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Clear, with a low around 48.
Thursday
Sunny, with a high near 78.
Thursday Night
Clear, with a low around 50.
Friday
Sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 50.
Saturday
Mostly sunny, with a high near 78.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Mostly sunny, with a high near 80.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles N West Alton MO
38.91°N 90.22°W (Elev. 407 ft)
38.91°N 90.22°W (Elev. 407 ft)
10:41 pm CDT Oct 18, 2026
11pm CDT Oct 18, 2026-6pm CDT Oct 25, 2026
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