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.

Overcast

34°F

1°C

Humidity 76%
Wind Speed NW 17 G 31 mph
Barometer 29.63 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 16 Mar 12:35 am CDT
Extended Forecast for

Maryville IL

Wind Advisory March 16, 01:04am until March 16, 12:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory March 16, 01:04am until March 16, 12:00pm

    NOW until 12:00pm Mon

    Wind Advisory

  • Overnight

    Low: 21 °F

    Chance Snow
    and Blustery

  • Monday

    Monday: A chance of snow before 3pm, then a chance of flurries between 3pm and 4pm. Cloudy, with a high near 28. Blustery, with a northwest wind 23 to 28 mph, with gusts as high as 37 mph. Chance of precipitation is 30%.

    High: 28 °F

    Blustery.
    Chance Snow
    then Chance
    Flurries

  • Monday Night

    Monday Night: Partly cloudy, with a low around 14. Blustery, with a northwest wind 13 to 20 mph, with gusts as high as 28 mph.

    Low: 14 °F

    Mostly Cloudy
    and Blustery
    then Partly
    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 30 percent chance of snow, mainly after 1am. Mostly cloudy, with a low around 30. Southeast wind 6 to 14 mph, with gusts as high as 23 mph.

    Low: 30 °F

    Chance Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 61.

    High: 61 °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 70.

    High: 70 °F

    Sunny

Detailed Forecast

Overnight
A 40 percent chance of snow, mainly between 2am and 4am. Cloudy, with a low around 21. Blustery, with a northwest wind around 26 mph, with gusts as high as 37 mph.
Monday
A chance of snow before 3pm, then a chance of flurries between 3pm and 4pm. Cloudy, with a high near 28. Blustery, with a northwest wind 23 to 28 mph, with gusts as high as 37 mph. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 14. Blustery, with a northwest wind 13 to 20 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 30 percent chance of snow, mainly after 1am. Mostly cloudy, with a low around 30. Southeast wind 6 to 14 mph, with gusts as high as 23 mph.
Wednesday
Mostly sunny, with a high near 61.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Sunny, with a high near 70.
Thursday Night
Mostly clear, with a low around 44.
Friday
Mostly sunny, with a high near 73.
Friday Night
Partly cloudy, with a low around 51.
Saturday
Sunny, with a high near 75.
Saturday Night
Mostly clear, with a low around 47.
Sunday
Mostly sunny, with a high near 72.
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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:
12:11 am CDT Mar 16, 2026
Forecast Valid:
1am CDT Mar 16, 2026-6pm CDT Mar 22, 2026
 
Forecast Discussion
 
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Additional Resources

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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