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Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair and Breezy

77°F

25°C

Humidity 30%
Wind Speed S 21 G 28 mph
Barometer 30.20 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 9 Apr 11:50 am CDT
Extended Forecast for

Maryville IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 79. South wind 10 to 15 mph, with gusts as high as 22 mph.

    High: 79 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 60. South wind 10 to 13 mph, with gusts as high as 22 mph.

    Low: 60 °F

    Increasing
    Clouds

  • Friday

    Friday: Showers likely before 1pm, then showers likely and possibly a thunderstorm between 1pm and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 70. Southwest wind 8 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.

    High: 70 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 40 percent chance of showers, mainly after 7pm. Mostly cloudy, with a low around 51. East wind around 7 mph.

    Low: 51 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 75. Southeast wind 7 to 9 mph. Chance of precipitation is 30%.

    High: 75 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 61.

    Low: 61 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 80. Breezy.

    High: 80 °F

    Partly Sunny
    then Slight
    Chance
    T-storms and
    Breezy

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.

    Low: 66 °F

    Chance
    Showers

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 83.

    High: 83 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 79. South wind 10 to 15 mph, with gusts as high as 22 mph.
Tonight
Increasing clouds, with a low around 60. South wind 10 to 13 mph, with gusts as high as 22 mph.
Friday
Showers likely before 1pm, then showers likely and possibly a thunderstorm between 1pm and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 70. Southwest wind 8 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Friday Night
A 40 percent chance of showers, mainly after 7pm. Mostly cloudy, with a low around 51. East wind around 7 mph.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 75. Southeast wind 7 to 9 mph. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 61.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 80. Breezy.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Monday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 83.
Monday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68.
Tuesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
Tuesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Maryville IL
 38.72°N 89.97°W (Elev. 558 ft)
Last Update:
11:51 am CDT Apr 9, 2026
Forecast Valid:
12pm CDT Apr 9, 2026-6pm CDT Apr 15, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation