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.

Fair

73°F

23°C

Humidity 38%
Wind Speed SW 14 mph
Barometer 30.26 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 9 Apr 12:45 pm CDT
Extended Forecast for

Whiteash IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 78. South southwest wind 13 to 15 mph, with gusts as high as 22 mph.

    High: 78 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 57. South wind 7 to 9 mph.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 78. South southwest wind 9 to 14 mph becoming west in the afternoon. Winds could gust as high as 22 mph.

    High: 78 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 54. Northeast wind 3 to 6 mph. Chance of precipitation is 40%.

    Low: 54 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 79. East northeast wind around 6 mph becoming south southeast in the afternoon.

    High: 79 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 60. Southeast wind around 6 mph.

    Low: 60 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 81. South southwest wind 7 to 17 mph, with gusts as high as 28 mph.

    High: 81 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. South southwest wind around 14 mph, with gusts as high as 24 mph.

    Low: 67 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 82. South southwest wind 15 to 17 mph, with gusts as high as 28 mph.

    High: 82 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 78. South southwest wind 13 to 15 mph, with gusts as high as 22 mph.
Tonight
Mostly clear, with a low around 57. South wind 7 to 9 mph.
Friday
A 40 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 78. South southwest wind 9 to 14 mph becoming west in the afternoon. Winds could gust as high as 22 mph.
Friday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 54. Northeast wind 3 to 6 mph. Chance of precipitation is 40%.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 79. East northeast wind around 6 mph becoming south southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 60. Southeast wind around 6 mph.
Sunday
Partly sunny, with a high near 81. South southwest wind 7 to 17 mph, with gusts as high as 28 mph.
Sunday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. South southwest wind around 14 mph, with gusts as high as 24 mph.
Monday
A chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 82. South southwest wind 15 to 17 mph, with gusts as high as 28 mph.
Monday Night
Partly cloudy, with a low around 69. South southwest wind around 14 mph, with gusts as high as 23 mph.
Tuesday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 86. South southwest wind 11 to 17 mph, with gusts as high as 28 mph.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South wind around 14 mph, with gusts as high as 23 mph.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 84. South southwest wind 13 to 16 mph, with gusts as high as 26 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Whiteash IL
 37.78°N 88.92°W
Last Update:
1:27 pm CDT Apr 9, 2026
Forecast Valid:
1pm CDT Apr 9, 2026-6pm CDT Apr 15, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation