Hazardous Weather Conditions
Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fog/Mist
38°F
3°C
| Humidity | 94% |
| Wind Speed | Calm |
| Barometer | 30.47 in |
| Dewpoint | 37°F (3°C) |
| Visibility | 4.00 mi |
| Last update | 18 Oct 2:15 am CDT |
Extended Forecast for
3 Miles NNE Alton IL
Frost Advisory until October 18, 09:00am
NOW until 9:00am Sun
Frost Advisory
Overnight
Low: 35 °F
Patchy Frost
Sunday
High: 69 °F
Patchy Frost
then SunnySunday Night
Low: 39 °F
Clear
Monday
High: 71 °F
Sunny
Monday Night
Low: 40 °F
Mostly Clear
Tuesday
High: 74 °F
Sunny
Tuesday Night
Low: 42 °F
Mostly Clear
Wednesday
High: 77 °F
Sunny
Detailed Forecast
Overnight
Patchy frost after 5am. Otherwise, clear, with a low around 35. Light southeast wind.
Sunday
Patchy frost before 8am. Otherwise, sunny, with a high near 69. South wind 3 to 8 mph.
Sunday Night
Clear, with a low around 39. Southeast wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 71. Light southeast wind.
Monday Night
Mostly clear, with a low around 40. Calm wind.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Clear, with a low around 46.
Thursday
Sunny, with a high near 81.
Thursday Night
Clear, with a low around 46.
Friday
Sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 47.
Saturday
Sunny, with a high near 80.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles NNE Alton IL
38.95°N 90.13°W (Elev. 502 ft)
38.95°N 90.13°W (Elev. 502 ft)
2:21 am CDT Oct 18, 2026
2am CDT Oct 18, 2026-6pm CDT Oct 24, 2026
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