Hazardous Weather Conditions
Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair and Windy
73°F
23°C
| Humidity | 44% |
| Wind Speed | N 28 G 40 mph |
| Barometer | 29.72 in |
| Dewpoint | 50°F (10°C) |
| Visibility | 10.00 mi |
| Last update | 22 Mar 4:50 pm CDT |
Extended Forecast for
2 Miles WSW Alton IL
Tonight
Low: 36 °F
Slight Chance
T-storms and
Breezy then
ClearMonday

High: 56 °F
Increasing
CloudsMonday Night

Low: 38 °F
Mostly Cloudy
Tuesday

High: 64 °F
Mostly Sunny
Tuesday Night

Low: 43 °F
Mostly Cloudy
Wednesday

High: 77 °F
Mostly Sunny
Wednesday Night

Low: 60 °F
Partly Cloudy
Thursday
High: 89 °F
Sunny then
Slight Chance
T-stormsThursday Night
Low: 42 °F
Chance
T-storms then
Rain Likely
Detailed Forecast
Tonight
A slight chance of showers and thunderstorms between 7pm and 8pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 36. Breezy, with a north wind 17 to 22 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 20%.
Monday
Increasing clouds, with a high near 56. Northeast wind 8 to 10 mph.
Monday Night
Mostly cloudy, with a low around 38. East wind around 6 mph.
Tuesday
Mostly sunny, with a high near 64. Southeast wind 6 to 9 mph.
Tuesday Night
Mostly cloudy, with a low around 43. Southeast wind around 6 mph.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
A 20 percent chance of rain and thunderstorms after 1pm. Sunny, with a high near 89.
Thursday Night
A chance of rain and thunderstorms, then rain likely after 1am. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Friday
A 40 percent chance of rain, mainly before 1pm. Partly sunny, with a high near 51.
Friday Night
Partly cloudy, with a low around 31.
Saturday
Sunny, with a high near 57.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Mostly sunny, with a high near 66.
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)
1:25 pm CDT Mar 22, 2026
5pm CDT Mar 22, 2026-6pm CDT Mar 29, 2026



