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.

Fog/Mist

39°F

4°C

Humidity 75%
Wind Speed N 15 G 23 mph
Barometer 30.08 in
Dewpoint 32°F (0°C)
Visibility 6.00 mi
Wind Chill31°F (-1°C)
Last update 7 Dec 10:50 am CST
Extended Forecast for

Maryville IL

  • Today

    Today: A slight chance of drizzle before 4pm, then a slight chance of drizzle after 5pm. Cloudy, with a temperature falling to around 32 by 5pm. North wind 9 to 14 mph, with gusts as high as 21 mph.

    High: 42 °F⇓

    Slight Chance
    Drizzle

  • Tonight

    Tonight: A 20 percent chance of snow before 9pm. Mostly cloudy, with a low around 22. North wind 6 to 13 mph, with gusts as high as 20 mph.

    Low: 22 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 34. North wind around 6 mph becoming calm in the morning.

    High: 34 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 26. Light southeast wind becoming south 5 to 10 mph in the evening.

    Low: 26 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 52. South wind 10 to 14 mph, with gusts as high as 21 mph.

    High: 52 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Thursday

    Thursday: A chance of rain and snow. Mostly cloudy, with a high near 37. Chance of precipitation is 30%.

    High: 37 °F

    Chance
    Rain/Snow

Detailed Forecast

Today
A slight chance of drizzle before 4pm, then a slight chance of drizzle after 5pm. Cloudy, with a temperature falling to around 32 by 5pm. North wind 9 to 14 mph, with gusts as high as 21 mph.
Tonight
A 20 percent chance of snow before 9pm. Mostly cloudy, with a low around 22. North wind 6 to 13 mph, with gusts as high as 20 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 34. North wind around 6 mph becoming calm in the morning.
Monday Night
Partly cloudy, with a low around 26. Light southeast wind becoming south 5 to 10 mph in the evening.
Tuesday
Mostly sunny, with a high near 52. South wind 10 to 14 mph, with gusts as high as 21 mph.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
Partly sunny, with a high near 48.
Wednesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 28.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 37. Chance of precipitation is 30%.
Thursday Night
A slight chance of rain and snow before midnight. Mostly cloudy, with a low around 18. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 25.
Friday Night
Mostly cloudy, with a low around 6.
Saturday
Partly sunny, with a high near 21.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Maryville IL
 38.7°N 89.94°W (Elev. 551 ft)
Last Update:
11:06 am CST Dec 7, 2025
Forecast Valid:
11am CST Dec 7, 2025-6pm CST Dec 13, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation