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

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Ozark IL

  • Today

    Today: Sunny, with a high near 40. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 40 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 27. South southwest wind 3 to 6 mph.

    Low: 27 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, with a high near 43. Light and variable wind.

    High: 43 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 31. Light east southeast wind.

    Low: 31 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers before noon. Mostly cloudy, with a high near 45. Light and variable wind becoming north northwest 5 to 10 mph in the morning.

    High: 45 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Sunday Night

    Sunday Night: A slight chance of rain and snow showers before 9pm, then a slight chance of snow showers between 9pm and midnight. Mostly cloudy, with a low around 21. North wind 6 to 10 mph. Chance of precipitation is 20%.

    Low: 21 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 35. North wind around 6 mph becoming calm in the morning.

    High: 35 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 24. Calm wind becoming south southwest 5 to 7 mph after midnight.

    Low: 24 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 45. South southwest wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 45 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 40. Calm wind becoming south southwest around 6 mph in the afternoon.
Tonight
Increasing clouds, with a low around 27. South southwest wind 3 to 6 mph.
Saturday
Partly sunny, with a high near 43. Light and variable wind.
Saturday Night
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 31. Light east southeast wind.
Sunday
A 20 percent chance of showers before noon. Mostly cloudy, with a high near 45. Light and variable wind becoming north northwest 5 to 10 mph in the morning.
Sunday Night
A slight chance of rain and snow showers before 9pm, then a slight chance of snow showers between 9pm and midnight. Mostly cloudy, with a low around 21. North wind 6 to 10 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 35. North wind around 6 mph becoming calm in the morning.
Monday Night
Partly cloudy, with a low around 24. Calm wind becoming south southwest 5 to 7 mph after midnight.
Tuesday
Mostly sunny, with a high near 45. South southwest wind 8 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 36. South southwest wind 9 to 14 mph, with gusts as high as 23 mph.
Wednesday
A slight chance of showers. Mostly cloudy, with a high near 48. South southwest wind 9 to 14 mph becoming west in the afternoon. Winds could gust as high as 23 mph.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 24. Northwest wind around 8 mph.
Thursday
Partly sunny, with a high near 35. Northwest wind 6 to 8 mph becoming south southwest in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ozark IL
 37.55°N 88.76°W
Last Update:
4:16 am CST Dec 5, 2025
Forecast Valid:
4am CST Dec 5, 2025-6pm CST Dec 11, 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