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 and Breezy

75°F

24°C

Humidity 36%
Wind Speed S 21 G 37 mph
Barometer 29.62 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 18 Mar 3:50 pm CDT
Extended Forecast for

Maryville IL

Wind Advisory March 19, 09:00am until March 19, 07:00pm
Click here for hazard details and duration
Wind Advisory

  • Tonight

    Tonight: Mostly cloudy, with a low around 58. Breezy, with a south wind 16 to 21 mph, with gusts as high as 33 mph.

    Low: 58 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms between noon and 3pm. Mostly sunny, with a high near 71. Windy, with a south wind 20 to 30 mph, with gusts as high as 50 mph. Chance of precipitation is 20%.

    High: 71 °F

    Slight Chance
    T-storms and
    Windy

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before 4am, then a chance of rain between 4am and 5am, then a chance of rain and snow after 5am. Increasing clouds, with a low around 35. Breezy, with a southwest wind 23 to 28 mph becoming northwest after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 50%.

    Low: 35 °F

    Breezy.
    Chance Rain
    then Chance
    Rain/Snow

  • Thursday

    Thursday: A 30 percent chance of snow before 7am. Mostly cloudy through mid morning, then gradual clearing, with a high near 50. Breezy, with a northwest wind 16 to 22 mph, with gusts as high as 31 mph.

    High: 50 °F

    Breezy.
    Chance Snow
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34. Northwest wind 5 to 9 mph becoming south after midnight.

    Low: 34 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 62. Breezy.

    High: 62 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: A 20 percent chance of rain before 1am. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy
    then Chance
    Rain

Detailed Forecast

Tonight
Mostly cloudy, with a low around 58. Breezy, with a south wind 16 to 21 mph, with gusts as high as 33 mph.
Wednesday
A slight chance of showers and thunderstorms between noon and 3pm. Mostly sunny, with a high near 71. Windy, with a south wind 20 to 30 mph, with gusts as high as 50 mph. Chance of precipitation is 20%.
Wednesday Night
A chance of rain and snow before 4am, then a chance of rain between 4am and 5am, then a chance of rain and snow after 5am. Increasing clouds, with a low around 35. Breezy, with a southwest wind 23 to 28 mph becoming northwest after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 50%.
Thursday
A 30 percent chance of snow before 7am. Mostly cloudy through mid morning, then gradual clearing, with a high near 50. Breezy, with a northwest wind 16 to 22 mph, with gusts as high as 31 mph.
Thursday Night
Mostly clear, with a low around 34. Northwest wind 5 to 9 mph becoming south after midnight.
Friday
Partly sunny, with a high near 62. Breezy.
Friday Night
A 20 percent chance of rain before 1am. Mostly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 59.
Saturday Night
A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 43.
Sunday
Rain, with thunderstorms also possible after 1pm. High near 61. Chance of precipitation is 80%.
Sunday Night
A 30 percent chance of rain. Partly cloudy, with a low around 40.
Monday
A 20 percent chance of rain. Mostly sunny, with a high near 58.
Monday Night
A 20 percent chance of rain. Partly cloudy, with a low around 38.
Tuesday
A 20 percent chance of rain. Mostly sunny, with a high near 58.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Maryville IL
 38.72°N 89.97°W (Elev. 558 ft)
Last Update:
2:21 pm CDT Mar 18, 2025
Forecast Valid:
4pm CDT Mar 18, 2025-6pm CDT Mar 25, 2025
 
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