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

59°F

15°C

Humidity 27%
Wind Speed N 14 mph
Barometer 30.27 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 6 Apr 5:50 pm CDT
Extended Forecast for

Maryville IL

  • Tonight

    Tonight: Increasing clouds, with a low around 38. North wind 6 to 10 mph, with gusts as high as 23 mph.

    Low: 38 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A 20 percent chance of showers between 8am and 9am. Cloudy, then gradually becoming mostly sunny, with a high near 54. East wind 9 to 14 mph, with gusts as high as 21 mph.

    High: 54 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 39. East wind around 9 mph, with gusts as high as 22 mph.

    Low: 39 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 71. South wind 9 to 15 mph, with gusts as high as 23 mph.

    High: 71 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53. South wind 10 to 13 mph, with gusts as high as 20 mph.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 75. Chance of precipitation is 40%.

    High: 75 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56.

    Low: 56 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Increasing clouds, with a low around 38. North wind 6 to 10 mph, with gusts as high as 23 mph.
Tuesday
A 20 percent chance of showers between 8am and 9am. Cloudy, then gradually becoming mostly sunny, with a high near 54. East wind 9 to 14 mph, with gusts as high as 21 mph.
Tuesday Night
Partly cloudy, with a low around 39. East wind around 9 mph, with gusts as high as 22 mph.
Wednesday
Mostly sunny, with a high near 71. South wind 9 to 15 mph, with gusts as high as 23 mph.
Wednesday Night
Partly cloudy, with a low around 53. South wind 10 to 13 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 75.
Thursday Night
A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 57.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 75. Chance of precipitation is 40%.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 80.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Monday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 81. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Maryville IL
 38.72°N 89.97°W (Elev. 558 ft)
Last Update:
5:36 pm CDT Apr 6, 2026
Forecast Valid:
6pm CDT Apr 6, 2026-6pm CDT Apr 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