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

18°F

-8°C

Humidity 56%
Wind Speed N 10 G 20 mph
Barometer 30.51 in
Dewpoint 4°F (-16°C)
Visibility 10.00 mi
Wind Chill6°F (-14°C)
Last update 23 Feb 5:15 am CST
Extended Forecast for

Whiteash IL

  • Today

    Today: Mostly cloudy through mid morning, then gradual clearing, with a high near 34. North northwest wind 6 to 14 mph, with gusts as high as 22 mph.

    High: 34 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 20. Calm wind becoming south around 6 mph after midnight.

    Low: 20 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 49. Breezy, with a south wind 8 to 13 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 49 °F

    Partly Sunny
    then Mostly
    Cloudy and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38. Southwest wind 13 to 18 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 26 mph.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 56. West northwest wind around 6 mph becoming light and variable in the afternoon.

    High: 56 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 40. East southeast wind 3 to 8 mph. Chance of precipitation is 60%.

    Low: 40 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Thursday

    Thursday: Showers likely, mainly before noon. Partly sunny, with a high near 53. South southeast wind 8 to 10 mph becoming north northwest in the afternoon. Chance of precipitation is 60%.

    High: 53 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29. North northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 59. Calm wind becoming south southwest 5 to 7 mph in the morning.

    High: 59 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy through mid morning, then gradual clearing, with a high near 34. North northwest wind 6 to 14 mph, with gusts as high as 22 mph.
Tonight
Mostly clear, with a low around 20. Calm wind becoming south around 6 mph after midnight.
Tuesday
Partly sunny, with a high near 49. Breezy, with a south wind 8 to 13 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 33 mph.
Tuesday Night
Mostly cloudy, with a low around 38. Southwest wind 13 to 18 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 26 mph.
Wednesday
Partly sunny, with a high near 56. West northwest wind around 6 mph becoming light and variable in the afternoon.
Wednesday Night
A slight chance of showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 40. East southeast wind 3 to 8 mph. Chance of precipitation is 60%.
Thursday
Showers likely, mainly before noon. Partly sunny, with a high near 53. South southeast wind 8 to 10 mph becoming north northwest in the afternoon. Chance of precipitation is 60%.
Thursday Night
Mostly clear, with a low around 29. North northwest wind 5 to 7 mph becoming calm in the evening.
Friday
Sunny, with a high near 59. Calm wind becoming south southwest 5 to 7 mph in the morning.
Friday Night
Clear, with a low around 38. South southwest wind around 6 mph.
Saturday
Sunny, with a high near 64. South southwest wind 6 to 10 mph.
Saturday Night
A slight chance of showers. Mostly cloudy, with a low around 37. South wind 8 to 10 mph becoming north after midnight.
Sunday
A chance of showers. Partly sunny, with a high near 55. Northeast wind around 11 mph, with gusts as high as 20 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Whiteash IL
 37.78°N 88.92°W
Last Update:
4:42 am CST Feb 23, 2026
Forecast Valid:
5am CST Feb 23, 2026-6pm CST Mar 1, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation