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.

Drizzle

45°F

7°C

Humidity 95%
Wind Speed SW 3 mph
Barometer 29.79 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 14 Jan 1:55 am CST
Extended Forecast for

Ozark IL

  • Overnight

    Overnight: Showers, mainly before 4am. Low around 43. West southwest wind 3 to 5 mph. Chance of precipitation is 90%.

    Low: 43 °F

    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers before 7am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 31 by 5pm. West wind 6 to 11 mph becoming north northwest 13 to 18 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 44 °F⇓

    Slight Chance
    Showers then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 19. North northwest wind 6 to 15 mph, with gusts as high as 29 mph.

    Low: 19 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 33. North northwest wind around 6 mph becoming calm in the afternoon.

    High: 33 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 24. Light south southwest wind increasing to 5 to 10 mph in the evening. Winds could gust as high as 22 mph.

    Low: 24 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 46. West wind 7 to 10 mph, with gusts as high as 21 mph.

    High: 46 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 22. West northwest wind around 7 mph.

    Low: 22 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 31. West wind 6 to 10 mph, with gusts as high as 21 mph.

    High: 31 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 11. North northwest wind around 6 mph.

    Low: 11 °F

    Partly Cloudy

Detailed Forecast

Overnight
Showers, mainly before 4am. Low around 43. West southwest wind 3 to 5 mph. Chance of precipitation is 90%.
Wednesday
A 20 percent chance of showers before 7am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 31 by 5pm. West wind 6 to 11 mph becoming north northwest 13 to 18 mph in the afternoon. Winds could gust as high as 31 mph.
Wednesday Night
Mostly clear, with a low around 19. North northwest wind 6 to 15 mph, with gusts as high as 29 mph.
Thursday
Sunny, with a high near 33. North northwest wind around 6 mph becoming calm in the afternoon.
Thursday Night
Mostly cloudy, with a low around 24. Light south southwest wind increasing to 5 to 10 mph in the evening. Winds could gust as high as 22 mph.
Friday
Partly sunny, with a high near 46. West wind 7 to 10 mph, with gusts as high as 21 mph.
Friday Night
Mostly cloudy, with a low around 22. West northwest wind around 7 mph.
Saturday
Partly sunny, with a high near 31. West wind 6 to 10 mph, with gusts as high as 21 mph.
Saturday Night
Partly cloudy, with a low around 11. North northwest wind around 6 mph.
Sunday
Sunny, with a high near 26. Northwest wind 6 to 8 mph becoming west southwest in the afternoon.
Sunday Night
Mostly clear, with a low around 16. Southwest wind around 6 mph.
M.L.King Day
Mostly sunny, with a high near 34. West wind 6 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 13. West northwest wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 35. Calm wind becoming west around 6 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ozark IL
 37.5°N 88.76°W
Last Update:
1:16 am CST Jan 14, 2026
Forecast Valid:
2am CST Jan 14, 2026-6pm CST Jan 20, 2026
 
Forecast Discussion
 
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Additional Resources

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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