Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
57°F
14°C
| Humidity | 88% |
| Wind Speed | Calm |
| Barometer | 30.03 in |
| Dewpoint | 54°F (12°C) |
| Visibility | 10.00 mi |
| Last update | 11 Oct 8:50 am CDT |
Extended Forecast for
East Alton IL
Today
High: 89 °F
Sunny
Tonight
Low: 65 °F
Mostly Clear
Columbus Day
High: 95 °F
Sunny
Monday Night
Low: 71 °F
Clear
Tuesday
High: 96 °F
Sunny
Tuesday Night
Low: 70 °F
Chance
T-stormsWednesday
High: 84 °F
Showers
Wednesday Night
Low: 63 °F
Showers
LikelyThursday
High: 79 °F
Showers
Detailed Forecast
Today
Sunny, with a high near 89. Light and variable wind.
Tonight
Mostly clear, with a low around 65. Southeast wind 3 to 5 mph.
Columbus Day
Sunny, with a high near 95. Southwest wind 5 to 13 mph, with gusts as high as 20 mph.
Monday Night
Clear, with a low around 71. Southwest wind 7 to 9 mph.
Tuesday
Sunny, with a high near 96. West wind 7 to 9 mph.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Wednesday
Showers and possibly a thunderstorm. High near 84. Chance of precipitation is 80%.
Wednesday Night
A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Thursday
Showers and possibly a thunderstorm. High near 79. Chance of precipitation is 80%.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 54.
Friday
Partly sunny, with a high near 69. Breezy.
Friday Night
Partly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 62.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
East Alton IL
38.88°N 90.11°W (Elev. 436 ft)
38.88°N 90.11°W (Elev. 436 ft)
9:01 am CDT Oct 11, 2026
9am CDT Oct 11, 2026-6pm CDT Oct 17, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
