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

59°F

15°C

Humidity 94%
Wind Speed Calm
Barometer 29.96 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 11 Oct 4:35 am CDT
Extended Forecast for

Whiteash IL

  • Today

    Today: Sunny, with a high near 85. West northwest wind 3 to 7 mph.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 61. Calm wind becoming southwest around 5 mph after midnight.

    Low: 61 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 91. Southwest wind 5 to 13 mph, with gusts as high as 18 mph.

    High: 91 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 67. Southwest wind around 8 mph.

    Low: 67 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93. Southwest wind 8 to 11 mph.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 70. Southwest wind around 6 mph.

    Low: 70 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 87. West southwest wind 3 to 8 mph. Chance of precipitation is 60%.

    High: 87 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Northeast wind 3 to 6 mph.

    Low: 65 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 82. East wind 8 to 11 mph becoming south southwest in the afternoon.

    High: 82 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 85. West northwest wind 3 to 7 mph.
Tonight
Mostly clear, with a low around 61. Calm wind becoming southwest around 5 mph after midnight.
Columbus Day
Sunny, with a high near 91. Southwest wind 5 to 13 mph, with gusts as high as 18 mph.
Monday Night
Clear, with a low around 67. Southwest wind around 8 mph.
Tuesday
Sunny, with a high near 93. Southwest wind 8 to 11 mph.
Tuesday Night
Mostly clear, with a low around 70. Southwest wind around 6 mph.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 87. West southwest wind 3 to 8 mph. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Northeast wind 3 to 6 mph.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 82. East wind 8 to 11 mph becoming south southwest in the afternoon.
Thursday Night
A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 56. South southwest wind 6 to 9 mph becoming west after midnight.
Friday
A slight chance of showers. Partly sunny, with a high near 71. Northwest wind 14 to 18 mph, with gusts as high as 24 mph.
Friday Night
Partly cloudy, with a low around 43. Breezy, with a north northwest wind 10 to 20 mph, with gusts as high as 23 mph.
Saturday
Mostly sunny, with a high near 62. North wind 11 to 15 mph, with gusts as high as 20 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Whiteash IL
 37.78°N 88.92°W
Last Update:
1:21 am CDT Oct 11, 2026
Forecast Valid:
4am CDT Oct 11, 2026-6pm CDT Oct 17, 2026
 
Forecast Discussion
 
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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