


Hazardous Weather Conditions
Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fog
70°F
21°C
Humidity | 99% |
Wind Speed | NE 3 mph |
Barometer | 30.04 in |
Dewpoint | 69°F (21°C) |
Visibility | 0.50 mi |
Last update | 14 Jul 5:55 am CDT |
Extended Forecast for
Maryville IL
Today
High: 85 °F
Patchy Fog
then Slight
Chance
T-stormsTonight
Low: 70 °F
Mostly Cloudy
Tuesday
High: 87 °F
Slight Chance
T-storms then
Chance
T-stormsTuesday Night
Low: 73 °F
Slight Chance
T-stormsWednesday
High: 93 °F
Mostly Sunny
then Chance
T-stormsWednesday Night
Low: 76 °F
Slight Chance
T-stormsThursday
High: 93 °F
Sunny then
Chance
T-stormsThursday Night
Low: 74 °F
Chance
T-stormsFriday
High: 90 °F
Chance
T-storms
Detailed Forecast
Today
A slight chance of showers and thunderstorms between 3pm and 4pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 85. Calm wind becoming east around 6 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 70. East wind 3 to 5 mph.
Tuesday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 87. Calm wind becoming south around 6 mph in the morning.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. South wind around 6 mph becoming calm in the evening.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Southwest wind 3 to 7 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 76.
Thursday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 74.
Friday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 90.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 91.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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)
5:21 am CDT Jul 14, 2025
6am CDT Jul 14, 2025-6pm CDT Jul 20, 2025