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

54°F

12°C

Humidity 26%
Wind Speed SE 10 mph
Barometer 30.10 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 17 Nov 10:50 am CST
Extended Forecast for

Maryville IL

  • Today

    Today: A 20 percent chance of rain after 5pm. Mostly sunny, with a high near 58. Southeast wind 10 to 13 mph, with gusts as high as 20 mph.

    High: 58 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: A 40 percent chance of rain and thunderstorms, mainly before 1am. Cloudy, with a low around 47. Southeast wind 9 to 11 mph, with gusts as high as 22 mph.

    Low: 47 °F

    Chance Rain
    then Chance
    T-storms

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 70. Southeast wind 7 to 10 mph becoming northwest in the afternoon.

    High: 70 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 46. North wind 5 to 7 mph.

    Low: 46 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 60. North wind around 5 mph becoming calm in the morning.

    High: 60 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: Rain, with thunderstorms also possible after noon. High near 64. Chance of precipitation is 90%.

    High: 64 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely and possibly a thunderstorm. Cloudy, with a low around 55. Chance of precipitation is 70%.

    Low: 55 °F

    Rain Likely

  • Friday

    Friday: Rain likely, mainly before noon. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.

    High: 64 °F

    Rain Likely

Detailed Forecast

Today
A 20 percent chance of rain after 5pm. Mostly sunny, with a high near 58. Southeast wind 10 to 13 mph, with gusts as high as 20 mph.
Tonight
A 40 percent chance of rain and thunderstorms, mainly before 1am. Cloudy, with a low around 47. Southeast wind 9 to 11 mph, with gusts as high as 22 mph.
Tuesday
Mostly cloudy, with a high near 70. Southeast wind 7 to 10 mph becoming northwest in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 46. North wind 5 to 7 mph.
Wednesday
Mostly cloudy, with a high near 60. North wind around 5 mph becoming calm in the morning.
Wednesday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 49.
Thursday
Rain, with thunderstorms also possible after noon. High near 64. Chance of precipitation is 90%.
Thursday Night
Rain likely and possibly a thunderstorm. Cloudy, with a low around 55. Chance of precipitation is 70%.
Friday
Rain likely, mainly before noon. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.
Friday Night
A 30 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 45.
Saturday
Partly sunny, with a high near 56.
Saturday Night
Partly cloudy, with a low around 40.
Sunday
Mostly sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Maryville IL
 38.72°N 89.97°W (Elev. 558 ft)
Last Update:
11:12 am CST Nov 17, 2025
Forecast Valid:
11am CST Nov 17, 2025-6pm CST Nov 23, 2025
 
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