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.

Light Rain

82°F

28°C

Humidity 70%
Wind Speed NW 10 mph
Barometer 29.97 in
Dewpoint 72°F (22°C)
Visibility 8.00 mi
Heat Index86°F (30°C)
Last update 11 Jul 6:45 pm CDT
Extended Forecast for

3 Miles SW Ozark IL

Flood Watch July 11, 07:31pm until July 12, 01:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch July 11, 07:31pm until July 12, 01:00am

    NOW until 1:00am Sun

    Flood Watch

  • Tonight

    Low: 68 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly before 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 82. North northeast wind 5 to 8 mph.

    High: 82 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 68. North wind 3 to 7 mph.

    Low: 68 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 84. North northeast wind 5 to 9 mph, with gusts as high as 18 mph.

    High: 84 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 69. North northeast wind around 6 mph becoming calm in the evening.

    Low: 69 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. East northeast wind 3 to 8 mph.

    High: 86 °F

    Sunny then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 70. Light and variable wind.

    Low: 70 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Light and variable wind.

    High: 87 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 3am. Mostly cloudy, with a low around 68. North wind around 5 mph becoming calm. Chance of precipitation is 40%.
Sunday
A 30 percent chance of showers and thunderstorms, mainly before 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 82. North northeast wind 5 to 8 mph.
Sunday Night
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 68. North wind 3 to 7 mph.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 84. North northeast wind 5 to 9 mph, with gusts as high as 18 mph.
Monday Night
Mostly clear, with a low around 69. North northeast wind around 6 mph becoming calm in the evening.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. East northeast wind 3 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 70. Light and variable wind.
Wednesday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 71. Calm wind.
Thursday
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 88. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 73. Calm wind.
Friday
Sunny, with a high near 91. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 73. Calm wind.
Saturday
Sunny, with a high near 91. Calm wind becoming west southwest around 6 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Ozark IL
 37.51°N 88.79°W
Last Update:
1:26 pm CDT Jul 11, 2026
Forecast Valid:
7pm CDT Jul 11, 2026-6pm CDT Jul 18, 2026
 
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Additional Resources

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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