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.

Partly Cloudy

70°F

21°C

Humidity 64%
Wind Speed NA
Barometer 29.89 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 21 Mar 10:45 am CDT
Extended Forecast for

Whiteash IL

  • Today

    Today: Sunny, with a high near 85. South southwest wind around 5 mph.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 62. South southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 62 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 85. South southwest wind 11 to 17 mph, with gusts as high as 26 mph.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 40. North wind 13 to 17 mph, with gusts as high as 28 mph.

    Low: 40 °F

    Chance
    T-storms

  • Monday

    Monday: Sunny, with a high near 59. North northeast wind 10 to 13 mph, with gusts as high as 21 mph.

    High: 59 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 42. Northeast wind around 6 mph.

    Low: 42 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 62. East wind around 6 mph.

    High: 62 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers. Mostly cloudy, with a low around 46. Light southeast wind.

    Low: 46 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 71. South wind 5 to 8 mph.

    High: 71 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 85. South southwest wind around 5 mph.
Tonight
Clear, with a low around 62. South southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 85. South southwest wind 11 to 17 mph, with gusts as high as 26 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 40. North wind 13 to 17 mph, with gusts as high as 28 mph.
Monday
Sunny, with a high near 59. North northeast wind 10 to 13 mph, with gusts as high as 21 mph.
Monday Night
Mostly cloudy, with a low around 42. Northeast wind around 6 mph.
Tuesday
Partly sunny, with a high near 62. East wind around 6 mph.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 46. Light southeast wind.
Wednesday
A slight chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 71. South wind 5 to 8 mph.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 56. South wind 6 to 8 mph.
Thursday
A slight chance of showers and thunderstorms. Sunny, with a high near 82. South southwest wind 8 to 13 mph, with gusts as high as 21 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 50. West northwest wind around 11 mph becoming north after midnight. Winds could gust as high as 21 mph.
Friday
A chance of showers. Partly sunny, with a high near 63. North northeast wind 11 to 13 mph, with gusts as high as 21 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Whiteash IL
 37.78°N 88.92°W
Last Update:
10:21 am CDT Mar 21, 2026
Forecast Valid:
11am CDT Mar 21, 2026-6pm CDT Mar 27, 2026
 
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Additional Resources

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Chance of Precipitation