National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

52°F

11°C

Humidity 62%
Wind Speed S 9 mph
Barometer 30.03 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 8 Mar 11:50 am CDT
Extended Forecast for

Maryville IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 65. Southwest wind 6 to 10 mph.

    High: 65 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 45. South wind around 8 mph.

    Low: 45 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 76. South wind 7 to 15 mph, with gusts as high as 22 mph.

    High: 76 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61. South wind 9 to 11 mph, with gusts as high as 20 mph.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Rain likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 80. South wind 8 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    High: 80 °F

    Slight Chance
    Rain then
    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 54. Chance of precipitation is 90%.

    Low: 54 °F

    Rain

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm before 1pm, then a chance of rain. High near 66. Breezy. Chance of precipitation is 100%.

    High: 66 °F

    Rain and
    Breezy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain before 1am. Partly cloudy, with a low around 32. Breezy.

    Low: 32 °F

    Slight Chance
    Rain and
    Breezy

  • Thursday

    Thursday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 65. Southwest wind 6 to 10 mph.
Tonight
Clear, with a low around 45. South wind around 8 mph.
Monday
Sunny, with a high near 76. South wind 7 to 15 mph, with gusts as high as 22 mph.
Monday Night
Mostly clear, with a low around 61. South wind 9 to 11 mph, with gusts as high as 20 mph.
Tuesday
Rain likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 80. South wind 8 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 54. Chance of precipitation is 90%.
Wednesday
Rain and possibly a thunderstorm before 1pm, then a chance of rain. High near 66. Breezy. Chance of precipitation is 100%.
Wednesday Night
A 20 percent chance of rain before 1am. Partly cloudy, with a low around 32. Breezy.
Thursday
Sunny, with a high near 52.
Thursday Night
Mostly cloudy, with a low around 44.
Friday
Partly sunny, with a high near 66.
Friday Night
Mostly cloudy, with a low around 38.
Saturday
Partly sunny, with a high near 55.
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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:
11:41 am CDT Mar 8, 2026
Forecast Valid:
12pm CDT Mar 8, 2026-6pm CDT Mar 14, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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