National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

35°F

2°C

Humidity 76%
Wind Speed NW 6 mph
Barometer 30.23 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 6 Feb 11:55 pm CST
Extended Forecast for

Maryville IL

  • Overnight

    Overnight: Mostly clear, with a low around 25. North wind 6 to 8 mph.

    Low: 25 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 36. Northeast wind around 6 mph becoming southeast in the afternoon.

    High: 36 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 26. Southeast wind 6 to 10 mph.

    Low: 26 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 45. Southeast wind 8 to 10 mph.

    High: 45 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 30. Southeast wind around 6 mph becoming calm after midnight.

    Low: 30 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain after noon. Mostly cloudy, with a high near 65.

    High: 65 °F

    Partly Sunny
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 40. Chance of precipitation is 60%.

    Low: 40 °F

    Rain Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 25. North wind 6 to 8 mph.
Saturday
Sunny, with a high near 36. Northeast wind around 6 mph becoming southeast in the afternoon.
Saturday Night
Mostly cloudy, with a low around 26. Southeast wind 6 to 10 mph.
Sunday
Mostly sunny, with a high near 45. Southeast wind 8 to 10 mph.
Sunday Night
Mostly clear, with a low around 30. Southeast wind around 6 mph becoming calm after midnight.
Monday
Sunny, with a high near 58.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
A 30 percent chance of rain after noon. Mostly cloudy, with a high near 65.
Tuesday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 40. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of rain, mainly before noon. Mostly cloudy, with a high near 50.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 31.
Thursday
A 20 percent chance of rain. Mostly cloudy, with a high near 46.
Thursday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 30.
Friday
A 20 percent chance of rain. Partly sunny, with a high near 46.
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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:
11:01 pm CST Feb 6, 2026
Forecast Valid:
12am CST Feb 7, 2026-6pm CST Feb 13, 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