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

31°F

-1°C

Humidity 69%
Wind Speed N 5 mph
Barometer 29.98 in
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 3 Jan 12:35 am CST
Extended Forecast for

Whiteash IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 29. North northeast wind around 6 mph.

    Low: 29 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 41. North wind 6 to 8 mph.

    High: 41 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 24. North northwest wind 3 to 6 mph.

    Low: 24 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 41. Light and variable wind.

    High: 41 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 30. Calm wind becoming south around 6 mph after midnight.

    Low: 30 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 55. South southwest wind 6 to 11 mph, with gusts as high as 18 mph.

    High: 55 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 45. South southwest wind around 8 mph.

    Low: 45 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 62. Southwest wind 6 to 11 mph.

    High: 62 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 43. South southwest wind around 5 mph becoming calm in the evening.

    Low: 43 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 29. North northeast wind around 6 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 41. North wind 6 to 8 mph.
Saturday Night
Mostly clear, with a low around 24. North northwest wind 3 to 6 mph.
Sunday
Increasing clouds, with a high near 41. Light and variable wind.
Sunday Night
Partly cloudy, with a low around 30. Calm wind becoming south around 6 mph after midnight.
Monday
Sunny, with a high near 55. South southwest wind 6 to 11 mph, with gusts as high as 18 mph.
Monday Night
Partly cloudy, with a low around 45. South southwest wind around 8 mph.
Tuesday
Partly sunny, with a high near 62. Southwest wind 6 to 11 mph.
Tuesday Night
Mostly cloudy, with a low around 43. South southwest wind around 5 mph becoming calm in the evening.
Wednesday
Mostly cloudy, with a high near 62. Calm wind becoming south around 6 mph.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 49. Calm wind becoming south southeast around 6 mph after midnight.
Thursday
Showers likely. Mostly cloudy, with a high near 64. South wind 6 to 10 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 52. South southwest wind around 10 mph.
Friday
A chance of showers. Mostly sunny, with a high near 62. South southwest wind 8 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:
10:27 pm CST Jan 2, 2026
Forecast Valid:
12am CST Jan 3, 2026-6pm CST Jan 9, 2026
 
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Additional Resources

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Chance of Precipitation