Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Overcast and Breezy

73°F

23°C

Humidity 47%
Wind Speed S 24 G 35 mph
Barometer 29.92 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 12 Apr 4:50 pm CDT
Extended Forecast for

Maryville IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers.  Mostly cloudy, with a high near 79. South wind around 17 mph, with gusts as high as 30 mph.

    High: 79 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 1am.  Mostly cloudy, with a low around 66. Breezy, with a southwest wind 11 to 20 mph, with gusts as high as 29 mph.

    Low: 66 °F

    Chance
    T-storms and
    Breezy

  • Monday

    Monday: Partly sunny, with a high near 84. South wind 10 to 17 mph, with gusts as high as 26 mph.

    High: 84 °F

    Partly Sunny

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am.  Mostly cloudy, with a low around 69. South wind 13 to 16 mph, with gusts as high as 24 mph.  Chance of precipitation is 20%.

    Low: 69 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 87. South wind 10 to 18 mph, with gusts as high as 26 mph.

    High: 87 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am.  Mostly cloudy, with a low around 69.

    Low: 69 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a high near 81. Chance of precipitation is 70%.

    High: 81 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 64. Chance of precipitation is 60%.

    Low: 64 °F

    Showers
    Likely

  • Thursday

    Thursday: A 20 percent chance of showers before 1pm.  Mostly sunny, with a high near 83.

    High: 83 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Mostly cloudy, with a high near 79. South wind around 17 mph, with gusts as high as 30 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 66. Breezy, with a southwest wind 11 to 20 mph, with gusts as high as 29 mph.
Monday
Partly sunny, with a high near 84. South wind 10 to 17 mph, with gusts as high as 26 mph.
Monday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 69. South wind 13 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87. South wind 10 to 18 mph, with gusts as high as 26 mph.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 69.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.
Thursday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 63.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.
Saturday
Showers and thunderstorms likely. Partly sunny, with a high near 78. Chance of precipitation is 60%.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 46.
Sunday
Mostly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
Maryville IL
 38.72°N 89.97°W (Elev. 558 ft)
2:56 pm CDT Apr 12, 2026
5pm CDT Apr 12, 2026-6pm CDT Apr 19, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database