


Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fog/Mist
72°F
22°C
Humidity | 99% |
Wind Speed | Calm |
Barometer | 30.05 in |
Dewpoint | 72°F (22°C) |
Visibility | 5.00 mi |
Last update | 15 Jul 2:15 am CDT |
Extended Forecast for
Maryville IL
Overnight
Low: 71 °F
Mostly Cloudy
Tuesday
High: 87 °F
Chance
T-stormsTuesday Night
Low: 72 °F
Slight Chance
T-storms then
Partly CloudyWednesday
High: 94 °F
Mostly Sunny
then Slight
Chance
T-stormsWednesday Night
Low: 75 °F
Slight Chance
T-stormsThursday
High: 89 °F
Mostly Sunny
then Chance
T-stormsThursday Night
Low: 71 °F
Chance
T-stormsFriday
High: 86 °F
Mostly Cloudy
then Chance
T-stormsFriday Night
Low: 73 °F
Slight Chance
T-storms
Detailed Forecast
Overnight
Mostly cloudy, with a low around 71. Calm wind.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 87. South wind 3 to 7 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 72. South wind 3 to 6 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Heat index values as high as 102. Calm wind becoming southwest 5 to 7 mph in the morning.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 75. South wind around 6 mph.
Thursday
A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89.
Thursday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 71.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 86.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 92.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
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)
1:51 am CDT Jul 15, 2025
2am CDT Jul 15, 2025-6pm CDT Jul 21, 2025