Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
66°F
19°C
| Humidity | 83% |
| Wind Speed | E 5 mph |
| Barometer | 30.09 in |
| Dewpoint | 61°F (16°C) |
| Visibility | 10.00 mi |
| Last update | 24 Aug 11:15 pm CDT |
Extended Forecast for
East Alton IL
Tonight
Low: 65 °F
Partly Cloudy
Tuesday
High: 87 °F
Mostly Sunny
Tuesday Night
Low: 69 °F
Partly Cloudy
Wednesday
High: 91 °F
Partly Sunny
then Slight
Chance
T-stormsWednesday Night
Low: 68 °F
Slight Chance
T-stormsThursday
High: 88 °F
Sunny
Thursday Night
Low: 65 °F
Mostly Clear
Friday
High: 88 °F
Sunny
Friday Night
Low: 66 °F
Mostly Clear
Detailed Forecast
Tonight
Partly cloudy, with a low around 65. Light east wind.
Tuesday
Mostly sunny, with a high near 87. Southeast wind 3 to 6 mph.
Tuesday Night
Partly cloudy, with a low around 69. East wind around 5 mph becoming calm in the evening.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 91. Calm wind becoming west 5 to 7 mph in the morning.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 68. West wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 88.
Thursday Night
Mostly clear, with a low around 65.
Friday
Sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 66.
Saturday
Sunny, with a high near 90.
Saturday Night
Mostly clear, with a low around 71.
Sunday
Mostly sunny, with a high near 95.
Sunday Night
Mostly clear, with a low around 75.
Monday
Mostly sunny, with a high near 95.
Additional Forecasts and Information
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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)
11:21 pm CDT Aug 24, 2026
11pm CDT Aug 24, 2026-6pm CDT Aug 31, 2026
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