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.

Fair

12°F

-11°C

Humidity 66%
Wind Speed W 3 mph
Barometer 30.24 in
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Last update 18 Jan 5:15 am CST
Extended Forecast for

Whiteash IL

  • Today

    Today: A chance of flurries between noon and 3pm. Increasing clouds, with a high near 31. Light west southwest wind becoming south southwest 10 to 15 mph in the morning. Winds could gust as high as 24 mph.

    High: 31 °F

    Chance
    Flurries

  • Tonight

    Tonight: Partly cloudy, with a low around 14. South southwest wind 11 to 15 mph becoming northwest after midnight. Winds could gust as high as 23 mph.

    Low: 14 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 23. Wind chill values as low as -1. Northwest wind 6 to 15 mph, with gusts as high as 23 mph.

    High: 23 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 10. Light and variable wind.

    Low: 10 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 36. South southwest wind 5 to 10 mph, with gusts as high as 18 mph.

    High: 36 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 27. South wind 9 to 14 mph, with gusts as high as 23 mph.

    Low: 27 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of rain and snow showers before noon. Mostly sunny, with a high near 46. South southwest wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    High: 46 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 23. Southwest wind around 6 mph becoming northwest after midnight.

    Low: 23 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 38. Northwest wind around 6 mph becoming south in the afternoon.

    High: 38 °F

    Sunny

Detailed Forecast

Today
A chance of flurries between noon and 3pm. Increasing clouds, with a high near 31. Light west southwest wind becoming south southwest 10 to 15 mph in the morning. Winds could gust as high as 24 mph.
Tonight
Partly cloudy, with a low around 14. South southwest wind 11 to 15 mph becoming northwest after midnight. Winds could gust as high as 23 mph.
M.L.King Day
Mostly sunny, with a high near 23. Wind chill values as low as -1. Northwest wind 6 to 15 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 10. Light and variable wind.
Tuesday
Sunny, with a high near 36. South southwest wind 5 to 10 mph, with gusts as high as 18 mph.
Tuesday Night
Partly cloudy, with a low around 27. South wind 9 to 14 mph, with gusts as high as 23 mph.
Wednesday
A slight chance of rain and snow showers before noon. Mostly sunny, with a high near 46. South southwest wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 23. Southwest wind around 6 mph becoming northwest after midnight.
Thursday
Sunny, with a high near 38. Northwest wind around 6 mph becoming south in the afternoon.
Thursday Night
Partly cloudy, with a low around 26. South wind 3 to 8 mph.
Friday
A slight chance of showers. Partly sunny, with a high near 46. South southwest wind 8 to 11 mph, with gusts as high as 18 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 29. South wind 8 to 10 mph becoming north in the evening.
Saturday
A chance of showers. Partly sunny, with a high near 37. North wind around 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:
4:56 am CST Jan 18, 2026
Forecast Valid:
5am CST Jan 18, 2026-6pm CST Jan 24, 2026
 
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Additional Resources

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Chance of Precipitation