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

38°F

3°C

Humidity 100%
Wind Speed Calm
Barometer 30.25 in
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 19 Apr 2:55 am CDT
Extended Forecast for

Whiteash IL

  • Overnight

    Overnight: Clear, with a low around 39. Calm wind.

    Low: 39 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 67. Light west southwest wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 42. West wind around 5 mph becoming northeast after midnight.

    Low: 42 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 68. Light and variable wind becoming east northeast around 6 mph.

    High: 68 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50. South southeast wind 3 to 7 mph.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78. Southwest wind 7 to 15 mph, with gusts as high as 24 mph.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 55. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 55 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79. Southwest wind 6 to 11 mph, with gusts as high as 18 mph.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. South wind around 6 mph.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 39. Calm wind.
Sunday
Sunny, with a high near 67. Light west southwest wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear, with a low around 42. West wind around 5 mph becoming northeast after midnight.
Monday
Sunny, with a high near 68. Light and variable wind becoming east northeast around 6 mph.
Monday Night
Mostly clear, with a low around 50. South southeast wind 3 to 7 mph.
Tuesday
Mostly sunny, with a high near 78. Southwest wind 7 to 15 mph, with gusts as high as 24 mph.
Tuesday Night
Clear, with a low around 55. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 79. Southwest wind 6 to 11 mph, with gusts as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 59. South wind around 6 mph.
Thursday
Sunny, with a high near 82. South wind 6 to 15 mph, with gusts as high as 25 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 64. South wind around 11 mph, with gusts as high as 21 mph.
Friday
Showers and thunderstorms likely. Partly sunny, with a high near 80. South southwest wind 13 to 15 mph, with gusts as high as 24 mph.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 53. Southwest wind 8 to 10 mph becoming northwest after midnight. Winds could gust as high as 18 mph.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 72. North northwest wind 9 to 11 mph, with gusts as high as 18 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Whiteash IL
 37.78°N 88.92°W
Last Update:
2:01 am CDT Apr 19, 2026
Forecast Valid:
3am CDT Apr 19, 2026-6pm CDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation