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.

Light Snow

23°F

-5°C

Humidity 68%
Wind Speed NW 16 G 30 mph
Barometer 29.94 in
Dewpoint 14°F (-10°C)
Visibility 7.00 mi
Wind Chill10°F (-12°C)
Last update 16 Mar 9:50 am CDT
Extended Forecast for

Maryville IL

Wind Advisory March 16, 10:45am until March 16, 12:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory March 16, 10:45am until March 16, 12:00pm

    NOW until 12:00pm Mon

    Wind Advisory

  • Today

    High: 29 °F

    Slight Chance
    Snow and
    Blustery

  • Tonight

    Tonight: Mostly cloudy, with a low around 15. Northwest wind 13 to 18 mph, with gusts as high as 28 mph.

    Low: 15 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 35. Northwest wind 6 to 10 mph becoming southwest in the afternoon.

    High: 35 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 31. Southeast wind 6 to 14 mph, with gusts as high as 22 mph.

    Low: 31 °F

    Chance Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 63. South wind 9 to 13 mph becoming west in the afternoon. Winds could gust as high as 21 mph.

    High: 63 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Today
A slight chance of snow before 1pm, then a chance of flurries between 1pm and 4pm. Cloudy, with a high near 29. Blustery, with a northwest wind 21 to 24 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 15. Northwest wind 13 to 18 mph, with gusts as high as 28 mph.
Tuesday
Mostly sunny, with a high near 35. Northwest wind 6 to 10 mph becoming southwest in the afternoon.
Tuesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 31. Southeast wind 6 to 14 mph, with gusts as high as 22 mph.
Wednesday
Mostly sunny, with a high near 63. South wind 9 to 13 mph becoming west in the afternoon. Winds could gust as high as 21 mph.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Sunny, with a high near 72.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 73.
Friday Night
Partly cloudy, with a low around 53.
Saturday
Sunny, with a high near 77.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Maryville IL
 38.75°N 89.97°W (Elev. 499 ft)
Last Update:
8:41 am CDT Mar 16, 2026
Forecast Valid:
10am CDT Mar 16, 2026-6pm CDT Mar 22, 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