Hazardous Weather Conditions
Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
71°F
22°C
| Humidity | 77% |
| Wind Speed | S 16 G 22 mph |
| Barometer | 29.83 in |
| Dewpoint | 64°F (18°C) |
| Visibility | 10.00 mi |
| Last update | 15 Apr 1:35 am CDT |
Extended Forecast for
Maryville IL
Overnight

Low: 70 °F
Mostly Cloudy
Wednesday
High: 81 °F
Isolated
T-storms then
Heavy RainWednesday Night

Low: 64 °F
Showers
Thursday

High: 82 °F
Scattered
ShowersThursday Night

Low: 60 °F
Mostly Clear
Friday
High: 86 °F
Mostly Sunny
then Chance
T-stormsFriday Night
Low: 55 °F
Chance
T-storms then
ShowersSaturday

High: 67 °F
Chance
ShowersSaturday Night

Low: 40 °F
Slight Chance
Showers
Detailed Forecast
Overnight
Mostly cloudy, with a low around 70. Southwest wind around 11 mph, with gusts as high as 20 mph.
Wednesday
Showers and thunderstorms likely, mainly after 4pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 81. Southwest wind 10 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Wednesday Night
Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then scattered showers and thunderstorms after 4am. Low around 64. South wind around 11 mph. Chance of precipitation is 90%.
Thursday
Scattered showers between 7am and 1pm, then scattered showers and thunderstorms after 1pm. Mostly sunny, with a high near 82. Southwest wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Thursday Night
Mostly clear, with a low around 60. South wind around 6 mph.
Friday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86.
Friday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 55. Chance of precipitation is 80%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 67. Chance of precipitation is 50%.
Saturday Night
A 20 percent chance of showers. Partly cloudy, with a low around 40.
Sunday
Sunny, with a high near 62.
Sunday Night
Clear, with a low around 40.
Monday
Sunny, with a high near 69.
Monday Night
Partly cloudy, with a low around 51.
Tuesday
Mostly sunny, with a high near 76.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Maryville IL
38.72°N 89.97°W (Elev. 558 ft)
38.72°N 89.97°W (Elev. 558 ft)
1:26 am CDT Apr 15, 2026
1am CDT Apr 15, 2026-6pm CDT Apr 21, 2026



