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

63°F

17°C

Humidity 83%
Wind Speed SE 6 mph
Barometer 30.17 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 11 Apr 8:50 pm CDT
Extended Forecast for

Maryville IL

  • Tonight

    Tonight: Partly cloudy, with a low around 61. East wind 5 to 9 mph becoming south after midnight.

    Low: 61 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers, mainly after 5pm. Partly sunny, with a high near 81. Breezy, with a south wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 81 °F

    Partly Sunny
    then Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7pm. Mostly cloudy, with a low around 65. Southwest wind 13 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    Low: 65 °F

    Showers
    Likely

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 84. South wind 10 to 18 mph, with gusts as high as 26 mph.

    High: 84 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 68. South wind 11 to 16 mph, with gusts as high as 24 mph.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. Chance of precipitation is 70%.

    High: 81 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.

    Low: 64 °F

    Showers
    Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 61. East wind 5 to 9 mph becoming south after midnight.
Sunday
A 30 percent chance of showers, mainly after 5pm. Partly sunny, with a high near 81. Breezy, with a south wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7pm. Mostly cloudy, with a low around 65. Southwest wind 13 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Monday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 84. South wind 10 to 18 mph, with gusts as high as 26 mph.
Monday Night
Partly cloudy, with a low around 68. South wind 11 to 16 mph, with gusts as high as 24 mph.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Thursday Night
A 20 percent chance of showers. Mostly clear, with a low around 62.
Friday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
Maryville IL
 38.72°N 89.97°W (Elev. 558 ft)
Last Update:
9:26 pm CDT Apr 11, 2026
Forecast Valid:
9pm CDT Apr 11, 2026-6pm CDT Apr 18, 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