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

14°F

-10°C

Humidity 62%
Wind Speed Vrbl 5 mph
Barometer 30.41 in
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill6°F (-14°C)
Last update 27 Jan 8:50 pm CST
Extended Forecast for

Maryville IL

  • Tonight

    Tonight: Mostly clear, with a low around 0. North wind 5 to 8 mph becoming light and variable after midnight.

    Low: 0 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 28. Wind chill values as low as -10. Southwest wind 5 to 10 mph.

    High: 28 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 9. Southwest wind around 5 mph becoming light and variable in the evening.

    Low: 9 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 21. Northeast wind 3 to 6 mph.

    High: 21 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 5. North wind 3 to 6 mph.

    Low: 5 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny and cold, with a high near 15.

    High: 15 °F

    Cold

  • Friday Night

    Friday Night: Partly cloudy, with a low around 1.

    Low: 1 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny and cold, with a high near 17.

    High: 17 °F

    Cold

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 2.

    Low: 2 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 0. North wind 5 to 8 mph becoming light and variable after midnight.
Wednesday
Partly sunny, with a high near 28. Wind chill values as low as -10. Southwest wind 5 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 9. Southwest wind around 5 mph becoming light and variable in the evening.
Thursday
Mostly cloudy, with a high near 21. Northeast wind 3 to 6 mph.
Thursday Night
Mostly cloudy, with a low around 5. North wind 3 to 6 mph.
Friday
Mostly sunny and cold, with a high near 15.
Friday Night
Partly cloudy, with a low around 1.
Saturday
Mostly sunny and cold, with a high near 17.
Saturday Night
Partly cloudy, with a low around 2.
Sunday
A 20 percent chance of snow after noon. Partly sunny, with a high near 26.
Sunday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 15.
Monday
Partly sunny, with a high near 31.
Monday Night
Mostly cloudy, with a low around 15.
Tuesday
Partly sunny, with a high near 33.
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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:
7:46 pm CST Jan 27, 2026
Forecast Valid:
8pm CST Jan 27, 2026-6pm CST Feb 3, 2026
 
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