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

57°F

14°C

Humidity 31%
Wind Speed S 14 mph
Barometer 30.31 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 29 Mar 9:45 am CDT
Extended Forecast for

Whiteash IL

  • Today

    Today: Mostly sunny, with a high near 70. South southwest wind 9 to 16 mph, with gusts as high as 25 mph.

    High: 70 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 56. South wind around 11 mph, with gusts as high as 21 mph.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 79. Breezy, with a south southwest wind 14 to 21 mph, with gusts as high as 32 mph.

    High: 79 °F

    Mostly Sunny
    and Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 66. South southwest wind 14 to 16 mph, with gusts as high as 26 mph.

    Low: 66 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 83. Breezy, with a south southwest wind 16 to 22 mph, with gusts as high as 36 mph.

    High: 83 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: A slight chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 56. South southwest wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    Low: 56 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 69. Northwest wind 10 to 13 mph becoming north northeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%.

    High: 69 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 54. East southeast wind around 10 mph, with gusts as high as 18 mph.

    Low: 54 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 70. Southeast wind 9 to 11 mph, with gusts as high as 18 mph.

    High: 70 °F

    Showers
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 70. South southwest wind 9 to 16 mph, with gusts as high as 25 mph.
Tonight
Partly cloudy, with a low around 56. South wind around 11 mph, with gusts as high as 21 mph.
Monday
Mostly sunny, with a high near 79. Breezy, with a south southwest wind 14 to 21 mph, with gusts as high as 32 mph.
Monday Night
Mostly clear, with a low around 66. South southwest wind 14 to 16 mph, with gusts as high as 26 mph.
Tuesday
Mostly sunny, with a high near 83. Breezy, with a south southwest wind 16 to 22 mph, with gusts as high as 36 mph.
Tuesday Night
A slight chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 56. South southwest wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Wednesday
Showers and possibly a thunderstorm. High near 69. Northwest wind 10 to 13 mph becoming north northeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%.
Wednesday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 54. East southeast wind around 10 mph, with gusts as high as 18 mph.
Thursday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 70. Southeast wind 9 to 11 mph, with gusts as high as 18 mph.
Thursday Night
Showers likely. Mostly cloudy, with a low around 53. Southwest wind around 9 mph.
Friday
A chance of showers. Mostly cloudy, with a high near 76. South wind 8 to 10 mph.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. South wind around 9 mph.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 74. South wind 11 to 15 mph, with gusts as high as 23 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:
9:16 am CDT Mar 29, 2026
Forecast Valid:
9am CDT Mar 29, 2026-6pm CDT Apr 4, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation