Hazardous Weather Conditions
Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fog/Mist
19°F
-7°C
| Humidity | 93% |
| Wind Speed | SE 3 mph |
| Barometer | 30.09 in |
| Dewpoint | 18°F (-8°C) |
| Visibility | 3.00 mi |
| Last update | 3 Dec 7:50 am CST |
Extended Forecast for
2 Miles WSW Alton IL
Today
High: 36 °F
Mostly Cloudy
then Chance
Rain/SnowTonight
Low: 11 °F
Snow Likely
then Slight
Chance SnowThursday

High: 23 °F
Sunny
Thursday Night

Low: 10 °F
Partly Cloudy
Friday

High: 37 °F
Mostly Sunny
Friday Night

Low: 23 °F
Mostly Cloudy
Saturday

High: 36 °F
Partly Sunny
Saturday Night

Low: 24 °F
Mostly Cloudy
Sunday
High: 35 °F
Mostly Cloudy
then Slight
Chance Rain
Detailed Forecast
Today
A slight chance of rain before 4pm, then a chance of rain and snow between 4pm and 5pm, then a chance of rain after 5pm. Mostly cloudy, with a high near 36. South wind 5 to 8 mph becoming light and variable. Chance of precipitation is 50%.
Tonight
Snow likely before 2am, then a chance of flurries between 2am and 3am. Cloudy, with a low around 11. North wind 6 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday
Sunny, with a high near 23. North wind 5 to 8 mph becoming light and variable in the afternoon.
Thursday Night
Partly cloudy, with a low around 10. Light and variable wind.
Friday
Mostly sunny, with a high near 37. South wind 3 to 6 mph.
Friday Night
Mostly cloudy, with a low around 23.
Saturday
Partly sunny, with a high near 36.
Saturday Night
Mostly cloudy, with a low around 24.
Sunday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 35.
Sunday Night
Mostly cloudy, with a low around 21.
Monday
Partly sunny, with a high near 34.
Monday Night
Mostly cloudy, with a low around 26.
Tuesday
Partly sunny, with a high near 43.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
2 Miles WSW Alton IL
38.88°N 90.19°W (Elev. 407 ft)
38.88°N 90.19°W (Elev. 407 ft)
6:26 am CST Dec 3, 2025
8am CST Dec 3, 2025-6pm CST Dec 9, 2025



