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.

Partly Cloudy

57°F

14°C

Humidity 72%
Wind Speed SW 9 mph
Barometer 29.97 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 20 Mar 7:45 am CDT
Extended Forecast for

Whiteash IL

  • Today

    Today: Sunny, with a high near 82. West southwest wind around 10 mph, with gusts as high as 18 mph.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 52. South southwest wind around 6 mph becoming light and variable after midnight.

    Low: 52 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 81. Calm wind becoming east northeast around 6 mph in the afternoon.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 60. Calm wind becoming south southwest 5 to 7 mph in the evening.

    Low: 60 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 86. South southwest wind 9 to 15 mph, with gusts as high as 24 mph.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 44. Southwest wind around 15 mph becoming north after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 20%.

    Low: 44 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Monday

    Monday: Sunny, with a high near 60. North wind 10 to 13 mph, with gusts as high as 22 mph.

    High: 60 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 40. East northeast wind around 6 mph.

    Low: 40 °F

    Partly Cloudy

  • Tuesday

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

    High: 62 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 82. West southwest wind around 10 mph, with gusts as high as 18 mph.
Tonight
Partly cloudy, with a low around 52. South southwest wind around 6 mph becoming light and variable after midnight.
Saturday
Sunny, with a high near 81. Calm wind becoming east northeast around 6 mph in the afternoon.
Saturday Night
Clear, with a low around 60. Calm wind becoming south southwest 5 to 7 mph in the evening.
Sunday
Sunny, with a high near 86. South southwest wind 9 to 15 mph, with gusts as high as 24 mph.
Sunday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 44. Southwest wind around 15 mph becoming north after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 20%.
Monday
Sunny, with a high near 60. North wind 10 to 13 mph, with gusts as high as 22 mph.
Monday Night
Partly cloudy, with a low around 40. East northeast wind around 6 mph.
Tuesday
Partly sunny, with a high near 62. East southeast wind around 6 mph.
Tuesday Night
Mostly cloudy, with a low around 44. East southeast wind 3 to 5 mph.
Wednesday
Partly sunny, with a high near 67. East wind 6 to 9 mph.
Wednesday Night
Partly cloudy, with a low around 51. Southeast wind 7 to 9 mph.
Thursday
Sunny, with a high near 78. South southwest wind 9 to 15 mph, with gusts as high as 23 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Whiteash IL
 37.78°N 88.92°W
Last Update:
7:21 am CDT Mar 20, 2026
Forecast Valid:
7am CDT Mar 20, 2026-6pm CDT Mar 26, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation