National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Overcast

73°F

23°C

Humidity 76%
Wind Speed SW 17 G 26 mph
Barometer 29.77 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 11 Mar 3:35 am CDT
Extended Forecast for

Whiteash IL

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly after 5am. Mostly cloudy, with a steady temperature around 71. South southwest wind around 17 mph, with gusts as high as 30 mph.

    Low: 71 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers and thunderstorms before 4pm, then showers likely. Temperature falling to around 52 by 5pm. Breezy, with a southwest wind 13 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 90%.

    High: 69 °F⇓

    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: Cloudy during the early evening, then gradual clearing, with a low around 32. North northwest wind 10 to 18 mph, with gusts as high as 30 mph.

    Low: 32 °F

    Gradual
    Clearing

  • Thursday

    Thursday: Sunny, with a high near 55. Northwest wind 5 to 8 mph.

    High: 55 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42. South wind 7 to 12 mph increasing to 13 to 18 mph after midnight. Winds could gust as high as 23 mph.

    Low: 42 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 63. Southwest wind 11 to 16 mph, with gusts as high as 25 mph.

    High: 63 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38. West northwest wind around 6 mph becoming east northeast after midnight.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 67. East wind 6 to 10 mph becoming south southeast in the afternoon.

    High: 67 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 54. South southeast wind 9 to 14 mph, with gusts as high as 23 mph.

    Low: 54 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Mostly cloudy, with a steady temperature around 71. South southwest wind around 17 mph, with gusts as high as 30 mph.
Wednesday
Showers and thunderstorms before 4pm, then showers likely. Temperature falling to around 52 by 5pm. Breezy, with a southwest wind 13 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 90%.
Wednesday Night
Cloudy during the early evening, then gradual clearing, with a low around 32. North northwest wind 10 to 18 mph, with gusts as high as 30 mph.
Thursday
Sunny, with a high near 55. Northwest wind 5 to 8 mph.
Thursday Night
Partly cloudy, with a low around 42. South wind 7 to 12 mph increasing to 13 to 18 mph after midnight. Winds could gust as high as 23 mph.
Friday
Mostly sunny, with a high near 63. Southwest wind 11 to 16 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 38. West northwest wind around 6 mph becoming east northeast after midnight.
Saturday
Sunny, with a high near 67. East wind 6 to 10 mph becoming south southeast in the afternoon.
Saturday Night
Mostly cloudy, with a low around 54. South southeast wind 9 to 14 mph, with gusts as high as 23 mph.
Sunday
A chance of showers and thunderstorms, then showers likely after 1pm. Mostly cloudy, with a high near 70. Breezy, with a south wind 16 to 24 mph, with gusts as high as 36 mph.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 29. Blustery, with a northwest wind 18 to 24 mph, with gusts as high as 31 mph.
Monday
Sunny, with a high near 41. Northwest wind around 17 mph, with gusts as high as 26 mph.
Monday Night
Partly cloudy, with a low around 21. North northwest wind 6 to 11 mph.
Tuesday
Partly sunny, with a high near 44. Northwest wind 5 to 9 mph becoming southwest in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Whiteash IL
 37.78°N 88.92°W
Last Update:
3:26 am CDT Mar 11, 2026
Forecast Valid:
3am CDT Mar 11, 2026-6pm CDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation