Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

59°F

15°C

Humidity 53%
Wind Speed S 8 mph
Barometer 30.05 in
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 30 Mar 12:35 am CDT
Extended Forecast for

Maryville IL

  • Overnight

    Overnight: Mostly clear, with a low around 57. South wind around 11 mph, with gusts as high as 21 mph.

    Low: 57 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 82. Southwest wind 13 to 18 mph, with gusts as high as 26 mph.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64. South wind around 15 mph, with gusts as high as 24 mph.

    Low: 64 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of rain, then a chance of rain and thunderstorms after 1pm.  Mostly sunny, with a high near 85. Breezy, with a southwest wind 14 to 21 mph, with gusts as high as 31 mph.  Chance of precipitation is 30%.

    High: 85 °F

    Chance Rain
    and Breezy

  • Tuesday Night

    Tuesday Night: A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 1am.  Low around 57. Southwest wind 10 to 14 mph becoming north after midnight. Winds could gust as high as 21 mph.  Chance of precipitation is 80%.

    Low: 57 °F

    Chance Rain
    then Rain

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm.  High near 68. Chance of precipitation is 80%.

    High: 68 °F

    Rain

  • Wednesday Night

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

    Low: 54 °F

    Rain

  • Thursday

    Thursday: Rain.  High near 66. Chance of precipitation is 80%.

    High: 66 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly before 1am.  Mostly cloudy, with a low around 49. Chance of precipitation is 60%.

    Low: 49 °F

    Rain Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 57. South wind around 11 mph, with gusts as high as 21 mph.
Monday
Sunny, with a high near 82. Southwest wind 13 to 18 mph, with gusts as high as 26 mph.
Monday Night
Partly cloudy, with a low around 64. South wind around 15 mph, with gusts as high as 24 mph.
Tuesday
A slight chance of rain, then a chance of rain and thunderstorms after 1pm. Mostly sunny, with a high near 85. Breezy, with a southwest wind 14 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 1am. Low around 57. Southwest wind 10 to 14 mph becoming north after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%.
Wednesday
Rain and possibly a thunderstorm. High near 68. Chance of precipitation is 80%.
Wednesday Night
Rain and possibly a thunderstorm. Low around 54. Chance of precipitation is 90%.
Thursday
Rain. High near 66. Chance of precipitation is 80%.
Thursday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Friday
A 40 percent chance of rain. Mostly cloudy, with a high near 73.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 57.
Saturday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 72. Chance of precipitation is 70%.
Saturday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Sunday
A 30 percent chance of rain. Mostly cloudy, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
Maryville IL
 38.72°N 89.97°W (Elev. 558 ft)
10:41 pm CDT Mar 29, 2026
12am CDT Mar 30, 2026-6pm CDT Apr 5, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database