Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
55°F
13°C
| Humidity | 69% |
| Wind Speed | SW 9 mph |
| Barometer | 30.11 in |
| Dewpoint | 45°F (7°C) |
| Visibility | 10.00 mi |
| Wind Chill | 53°F (12°C) |
| Last update | 21 Apr 5:15 am CDT |
Extended Forecast for
2 Miles WSW Alton IL
Today

High: 80 °F
Mostly Sunny
Tonight

Low: 57 °F
Mostly Clear
Wednesday

High: 79 °F
Mostly Sunny
Wednesday Night

Low: 58 °F
Mostly Clear
Thursday

High: 83 °F
Mostly Sunny
Thursday Night
Low: 61 °F
Mostly Cloudy
then Showers
LikelyFriday

High: 76 °F
Showers
Friday Night

Low: 55 °F
Slight Chance
T-stormsSaturday
High: 74 °F
Mostly Sunny
then Slight
Chance
Showers
Detailed Forecast
Today
Mostly sunny, with a high near 80. Southwest wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 26 mph.
Tonight
Mostly clear, with a low around 57. Southwest wind 7 to 13 mph, with gusts as high as 21 mph.
Wednesday
Mostly sunny, with a high near 79. Southwest wind 6 to 9 mph.
Wednesday Night
Mostly clear, with a low around 58. South wind around 6 mph.
Thursday
Mostly sunny, with a high near 83. South wind 7 to 17 mph, with gusts as high as 28 mph.
Thursday Night
Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 61. Chance of precipitation is 70%.
Friday
Showers and possibly a thunderstorm. High near 76. Chance of precipitation is 80%.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 55. Chance of precipitation is 20%.
Saturday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 74.
Saturday Night
A slight chance of showers, with thunderstorms also possible after 1am. Partly cloudy, with a low around 52. Chance of precipitation is 20%.
Sunday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 74.
Sunday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Monday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 74. Chance of precipitation is 60%.
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)
3:01 am CDT Apr 21, 2026
5am CDT Apr 21, 2026-6pm CDT Apr 27, 2026


