National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

82°F

28°C

Humidity 51%
Wind Speed N 9 mph
Barometer 30.00 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 22 Aug 5:45 pm CDT
Extended Forecast for

Ozark IL

  • Tonight

    Tonight: Clear, with a low around 63. North wind around 6 mph becoming calm in the evening.

    Low: 63 °F

    Clear

  • Sunday

    Sunday: Patchy fog before 7am. Otherwise, sunny, with a high near 84. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 84 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 83. Calm wind.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 63. Calm wind. Chance of precipitation is 30%.

    Low: 63 °F

    Partly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of thunderstorms before 7am. Mostly sunny, with a high near 85. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 10%.

    High: 85 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 65. Calm wind.

    Low: 65 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 87. Light and variable wind.

    High: 87 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Clear, with a low around 63. North wind around 6 mph becoming calm in the evening.
Sunday
Patchy fog before 7am. Otherwise, sunny, with a high near 84. Calm wind becoming north northwest around 6 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 61. Calm wind.
Monday
Mostly sunny, with a high near 83. Calm wind.
Monday Night
A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 63. Calm wind. Chance of precipitation is 30%.
Tuesday
A slight chance of thunderstorms before 7am. Mostly sunny, with a high near 85. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 10%.
Tuesday Night
Partly cloudy, with a low around 65. Calm wind.
Wednesday
Mostly sunny, with a high near 87. Light and variable wind.
Wednesday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 66. Calm wind.
Thursday
Sunny, with a high near 88. Calm wind becoming northwest around 6 mph in the afternoon.
Thursday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 66. Calm wind.
Friday
Sunny, with a high near 87. Calm wind becoming north around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 66. Calm wind.
Saturday
Sunny, with a high near 88. Calm wind becoming east southeast around 5 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ozark IL
 37.53°N 88.76°W
Last Update:
4:56 pm CDT Aug 22, 2026
Forecast Valid:
6pm CDT Aug 22, 2026-6pm CDT Aug 29, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation