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.

Rain

67°F

19°C

Humidity 87%
Wind Speed W 6 mph
Barometer 29.92 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 3 Apr 1:15 am CDT
Extended Forecast for

Maryville IL

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Northwest wind 5 to 7 mph.

    Low: 60 °F

    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly between 1pm and 4pm. Partly sunny, with a high near 81. South wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 81 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 58. South wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%.

    Low: 58 °F

    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm before 1pm, then a slight chance of showers between 1pm and 4pm. Temperature falling to around 56 by 5pm. West wind 11 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    High: 62 °F⇓

    Showers then
    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 40. Northwest wind 8 to 14 mph, with gusts as high as 22 mph.

    Low: 40 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 40.

    Low: 40 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Northwest wind 5 to 7 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly between 1pm and 4pm. Partly sunny, with a high near 81. South wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 25 mph.
Friday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 58. South wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%.
Saturday
Showers and possibly a thunderstorm before 1pm, then a slight chance of showers between 1pm and 4pm. Temperature falling to around 56 by 5pm. West wind 11 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Saturday Night
Partly cloudy, with a low around 40. Northwest wind 8 to 14 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 58.
Sunday Night
Clear, with a low around 40.
Monday
Sunny, with a high near 60.
Monday Night
Partly cloudy, with a low around 34.
Tuesday
Mostly sunny, with a high near 54.
Tuesday Night
Partly cloudy, with a low around 40.
Wednesday
Partly sunny, with a high near 70.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 75.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Maryville IL
 38.72°N 89.97°W (Elev. 558 ft)
Last Update:
1:26 am CDT Apr 3, 2026
Forecast Valid:
2am CDT Apr 3, 2026-6pm CDT Apr 9, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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