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.

Partly Cloudy and Breezy

20°F

-7°C

Humidity 53%
Wind Speed W 25 G 38 mph
Barometer 30.08 in
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Wind Chill3°F (-16°C)
Last update 29 Dec 2:35 am CST
Extended Forecast for

Maryville IL

Wind Advisory until December 29, 06:00am
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory until December 29, 06:00am

    NOW until 6:00am Mon

    Wind Advisory

  • Overnight

    Low: 17 °F

    Chance
    Flurries and
    Breezy

  • Monday

    Monday: Partly sunny, with a high near 29. Breezy, with a northwest wind 17 to 25 mph, with gusts as high as 37 mph.

    High: 29 °F

    Partly Sunny
    and Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 17. Northwest wind 9 to 16 mph, with gusts as high as 24 mph.

    Low: 17 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 36. West wind 7 to 9 mph.

    High: 36 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 28. West wind 6 to 9 mph.

    Low: 28 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny

Detailed Forecast

Overnight
A chance of flurries before 5am. Mostly cloudy, with a low around 17. Breezy, with a west wind 26 to 28 mph, with gusts as high as 39 mph.
Monday
Partly sunny, with a high near 29. Breezy, with a northwest wind 17 to 25 mph, with gusts as high as 37 mph.
Monday Night
Mostly clear, with a low around 17. Northwest wind 9 to 16 mph, with gusts as high as 24 mph.
Tuesday
Increasing clouds, with a high near 36. West wind 7 to 9 mph.
Tuesday Night
Mostly clear, with a low around 28. West wind 6 to 9 mph.
Wednesday
Partly sunny, with a high near 43.
Wednesday Night
Partly cloudy, with a low around 25.
New Year's Day
Mostly sunny, with a high near 35.
Thursday Night
Partly cloudy, with a low around 22.
Friday
Mostly cloudy, with a high near 39.
Friday Night
Mostly cloudy, with a low around 25.
Saturday
Sunny, with a high near 40.
Saturday Night
Partly cloudy, with a low around 23.
Sunday
Mostly sunny, with a high near 43.
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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:
2:31 am CST Dec 29, 2025
Forecast Valid:
3am CST Dec 29, 2025-6pm CST Jan 4, 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