Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

45°F

7°C

Humidity 92%
Wind Speed Calm
Barometer 30.16 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 6 Oct 2:35 am CDT
Extended Forecast for

Maryville IL

  • Overnight

    Overnight: Clear, with a low around 47. Calm wind.

    Low: 47 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 80. Light and variable wind becoming south 5 to 7 mph in the morning.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54. South wind 3 to 5 mph.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88. West wind 5 to 9 mph.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57. West wind around 5 mph becoming light and variable  in the evening.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 47. Calm wind.
Tuesday
Sunny, with a high near 80. Light and variable wind becoming south 5 to 7 mph in the morning.
Tuesday Night
Mostly clear, with a low around 54. South wind 3 to 5 mph.
Wednesday
Sunny, with a high near 88. West wind 5 to 9 mph.
Wednesday Night
Mostly clear, with a low around 57. West wind around 5 mph becoming light and variable in the evening.
Thursday
Sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 53.
Friday
Sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 56.
Saturday
Sunny, with a high near 88.
Saturday Night
A 20 percent chance of showers. Partly cloudy, with a low around 59.
Sunday
Mostly sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 61.
Columbus Day
Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
Maryville IL
 38.72°N 89.97°W (Elev. 558 ft)
1:26 am CDT Oct 6, 2026
2am CDT Oct 6, 2026-6pm CDT Oct 12, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database