Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

59°F

15°C

Humidity 51%
Wind Speed Calm
Barometer 30.01 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 18 Mar 6:45 pm CDT
Extended Forecast for

Maryville IL

  • Tonight

    Tonight: Partly cloudy, with a low around 44. Light south wind.

    Low: 44 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 72. Light and variable wind becoming northwest around 6 mph in the afternoon.

    High: 72 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 48. Light and variable wind.

    Low: 48 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 79. Light southwest wind becoming west 5 to 9 mph in the morning.

    High: 79 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 52. West wind 3 to 6 mph.

    Low: 52 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 44. Light south wind.
Thursday
Mostly sunny, with a high near 72. Light and variable wind becoming northwest around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 48. Light and variable wind.
Friday
Mostly sunny, with a high near 79. Light southwest wind becoming west 5 to 9 mph in the morning.
Friday Night
Partly cloudy, with a low around 52. West wind 3 to 6 mph.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Mostly sunny, with a high near 80.
Sunday Night
Mostly cloudy, with a low around 38.
Monday
Partly sunny, with a high near 53.
Monday Night
Partly cloudy, with a low around 35.
Tuesday
Partly sunny, with a high near 59.
Tuesday Night
Mostly cloudy, with a low around 42.
Wednesday
Partly sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
Maryville IL
 38.72°N 89.97°W (Elev. 558 ft)
5:51 pm CDT Mar 18, 2026
7pm CDT Mar 18, 2026-6pm CDT Mar 25, 2026
 
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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