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.

Fair

25°F

-4°C

Humidity 59%
Wind Speed S 17 mph
Barometer 30.06 in
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 24 Feb 6:50 am CST
Extended Forecast for

Maryville IL

  • Today

    Today: Increasing clouds, with a high near 54. Breezy, with a southeast wind 7 to 12 mph becoming south 17 to 22 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 54 °F

    Partly Sunny
    then Mostly
    Cloudy and
    Breezy

  • Tonight

    Tonight: Mostly cloudy, with a low around 34. Southwest wind 6 to 11 mph becoming light and variable after midnight.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 52. Light and variable wind becoming northeast around 6 mph in the morning.

    High: 52 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 36. East wind 5 to 9 mph. Chance of precipitation is 60%.

    Low: 36 °F

    Rain Likely

  • Thursday

    Thursday: A 20 percent chance of rain before noon. Partly sunny, with a high near 50. East wind 6 to 10 mph becoming north in the afternoon.

    High: 50 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 54. Breezy, with a southeast wind 7 to 12 mph becoming south 17 to 22 mph in the afternoon. Winds could gust as high as 33 mph.
Tonight
Mostly cloudy, with a low around 34. Southwest wind 6 to 11 mph becoming light and variable after midnight.
Wednesday
Partly sunny, with a high near 52. Light and variable wind becoming northeast around 6 mph in the morning.
Wednesday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 36. East wind 5 to 9 mph. Chance of precipitation is 60%.
Thursday
A 20 percent chance of rain before noon. Partly sunny, with a high near 50. East wind 6 to 10 mph becoming north in the afternoon.
Thursday Night
Mostly clear, with a low around 32.
Friday
Sunny, with a high near 64.
Friday Night
Mostly clear, with a low around 40.
Saturday
Sunny, with a high near 66.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
A chance of rain and snow. Partly sunny, with a high near 45. Chance of precipitation is 30%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 40%.
Monday
A 40 percent chance of rain. Mostly cloudy, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Maryville IL
 38.72°N 89.94°W (Elev. 554 ft)
Last Update:
6:46 am CST Feb 24, 2026
Forecast Valid:
6am CST Feb 24, 2026-6pm CST Mar 2, 2026
 
Forecast Discussion
 
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Additional Resources

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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