Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
63°F
17°C
| Humidity | 24% |
| Wind Speed | SE 14 G 21 mph |
| Barometer | 30.20 in |
| Dewpoint | 25°F (-4°C) |
| Visibility | 10.00 mi |
| Last update | 24 Mar 3:50 pm CDT |
Extended Forecast for
2 Miles WSW Alton IL
Tonight

Low: 43 °F
Mostly Cloudy
Wednesday

High: 79 °F
Sunny
Wednesday Night

Low: 63 °F
Mostly Clear
Thursday

High: 90 °F
Sunny
Thursday Night

Low: 43 °F
Rain
Friday

High: 53 °F
Chance Rain
Friday Night

Low: 31 °F
Mostly Clear
Saturday

High: 59 °F
Sunny
Saturday Night

Low: 40 °F
Partly Cloudy
Detailed Forecast
Tonight
Mostly cloudy, with a low around 43. Southeast wind around 6 mph.
Wednesday
Sunny, with a high near 79. Light and variable wind becoming south 6 to 11 mph in the morning.
Wednesday Night
Mostly clear, with a low around 63. South wind around 10 mph.
Thursday
Sunny, with a high near 90. Southwest wind 9 to 15 mph, with gusts as high as 24 mph.
Thursday Night
Rain. Low around 43. Southwest wind 10 to 16 mph becoming north after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%.
Friday
A 30 percent chance of rain before 1pm. Partly sunny, with a high near 53.
Friday Night
Mostly clear, with a low around 31.
Saturday
Sunny, with a high near 59.
Saturday Night
Partly cloudy, with a low around 40.
Sunday
Partly sunny, with a high near 64.
Sunday Night
Mostly cloudy, with a low around 49.
Monday
Mostly sunny, with a high near 80.
Monday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 58.
Tuesday
A 40 percent chance of rain and thunderstorms. Partly sunny, with a high near 78.
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)
2:56 pm CDT Mar 24, 2026
4pm CDT Mar 24, 2026-6pm CDT Mar 31, 2026


