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

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Partly Cloudy

45°F

7°C

Humidity 55%
Wind Speed SE 7 mph
Barometer 30.29 in
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 29 Mar 4:35 am CDT
Extended Forecast for

Maryville IL

  • Today

    Today: Partly sunny, with a high near 69. South wind 6 to 15 mph, with gusts as high as 22 mph.

    High: 69 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy during the early evening, then becoming mostly clear, with a low around 56. South wind 10 to 13 mph, with gusts as high as 20 mph.

    Low: 56 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 83. South wind 11 to 18 mph, with gusts as high as 26 mph.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 65. South wind 15 to 17 mph, with gusts as high as 26 mph.

    Low: 65 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of rain, then a chance of rain and thunderstorms after 10am. Partly sunny, with a high near 84. Breezy, with a southwest wind 15 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 40%.

    High: 84 °F

    Chance
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 1am. Low around 53. Chance of precipitation is 90%.

    Low: 53 °F

    Chance
    T-storms then
    Rain

  • Wednesday

    Wednesday: Rain likely and possibly a thunderstorm before 1pm, then a chance of rain and thunderstorms after 1pm. Mostly cloudy, with a high near 59. Chance of precipitation is 70%.

    High: 59 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1am. Cloudy, with a low around 48. Chance of precipitation is 70%.

    Low: 48 °F

    Chance
    T-storms then
    Rain Likely

  • Thursday

    Thursday: Rain likely and possibly a thunderstorm. Cloudy, with a high near 63. Chance of precipitation is 70%.

    High: 63 °F

    Rain Likely

Detailed Forecast

Today
Partly sunny, with a high near 69. South wind 6 to 15 mph, with gusts as high as 22 mph.
Tonight
Mostly cloudy during the early evening, then becoming mostly clear, with a low around 56. South wind 10 to 13 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 83. South wind 11 to 18 mph, with gusts as high as 26 mph.
Monday Night
Partly cloudy, with a low around 65. South wind 15 to 17 mph, with gusts as high as 26 mph.
Tuesday
A slight chance of rain, then a chance of rain and thunderstorms after 10am. Partly sunny, with a high near 84. Breezy, with a southwest wind 15 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 40%.
Tuesday Night
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 1am. Low around 53. Chance of precipitation is 90%.
Wednesday
Rain likely and possibly a thunderstorm before 1pm, then a chance of rain and thunderstorms after 1pm. Mostly cloudy, with a high near 59. Chance of precipitation is 70%.
Wednesday Night
A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1am. Cloudy, with a low around 48. Chance of precipitation is 70%.
Thursday
Rain likely and possibly a thunderstorm. Cloudy, with a high near 63. Chance of precipitation is 70%.
Thursday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.
Friday
A 40 percent chance of rain. Partly sunny, with a high near 75.
Friday Night
Rain and thunderstorms likely. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Saturday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Maryville IL
 38.72°N 89.97°W (Elev. 558 ft)
Last Update:
1:26 am CDT Mar 29, 2026
Forecast Valid:
4am CDT Mar 29, 2026-6pm CDT Apr 4, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation