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.

Overcast

60°F

16°C

Humidity 58%
Wind Speed S 9 mph
Barometer 30.02 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 30 Mar 5:15 am CDT
Extended Forecast for

Maryville IL

  • Today

    Today: Mostly sunny, with a high near 81. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 33 mph.

    High: 81 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 64. South wind 10 to 15 mph, with gusts as high as 25 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 south wind 13 to 21 mph, with gusts as high as 37 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 likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 59. South wind 9 to 13 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%.

    Low: 59 °F

    Chance Rain
    then Rain
    Likely

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm. High near 75. Northeast wind 8 to 11 mph becoming southeast in the afternoon. Chance of precipitation is 80%.

    High: 75 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.

    Low: 64 °F

    Rain Likely

  • Thursday

    Thursday: Rain and possibly a thunderstorm. High near 76. Breezy. Chance of precipitation is 80%.

    High: 76 °F

    Rain and
    Breezy

  • Thursday Night

    Thursday Night: Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 59. Chance of precipitation is 70%.

    Low: 59 °F

    Rain Likely

  • Friday

    Friday: A chance of rain and thunderstorms. Mostly cloudy, with a high near 77. Chance of precipitation is 50%.

    High: 77 °F

    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 81. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 33 mph.
Tonight
Partly cloudy, with a low around 64. South wind 10 to 15 mph, with gusts as high as 25 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 south wind 13 to 21 mph, with gusts as high as 37 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 59. South wind 9 to 13 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Wednesday
Rain and possibly a thunderstorm. High near 75. Northeast wind 8 to 11 mph becoming southeast in the afternoon. Chance of precipitation is 80%.
Wednesday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.
Thursday
Rain and possibly a thunderstorm. High near 76. Breezy. Chance of precipitation is 80%.
Thursday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 59. Chance of precipitation is 70%.
Friday
A chance of rain and thunderstorms. Mostly cloudy, with a high near 77. Chance of precipitation is 50%.
Friday Night
Rain likely, mainly after 1am. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Saturday
Rain and thunderstorms likely. Mostly cloudy, with a high near 69. Chance of precipitation is 60%.
Saturday Night
A 40 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 42.
Sunday
A 20 percent chance of rain. Mostly sunny, with a high near 58.
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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:
1:25 am CDT Mar 30, 2026
Forecast Valid:
5am CDT Mar 30, 2026-6pm CDT Apr 5, 2026
 
Forecast Discussion
 
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Additional Resources

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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