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

63°F

17°C

Humidity 73%
Wind Speed Vrbl 1 mph
Barometer 29.97 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 8 Oct 12:15 am CDT
Extended Forecast for

Whiteash IL

  • Overnight

    Overnight: Clear, with a low around 58. Light and variable wind.

    Low: 58 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 85. Calm wind becoming east 5 to 7 mph in the morning.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 57. Light east southeast wind.

    Low: 57 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 88. South southeast wind 3 to 8 mph.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. South southeast wind 3 to 5 mph.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: A 40 percent chance of showers after 1pm. Partly sunny, with a high near 83. Light and variable wind becoming east southeast 6 to 11 mph in the morning.

    High: 83 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 1am, then showers likely. Low around 58. East northeast wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.

    Low: 58 °F

    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 76. East northeast wind 9 to 11 mph becoming west northwest in the afternoon.

    High: 76 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57. Light southwest wind.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 58. Light and variable wind.
Thursday
Sunny, with a high near 85. Calm wind becoming east 5 to 7 mph in the morning.
Thursday Night
Clear, with a low around 57. Light east southeast wind.
Friday
Sunny, with a high near 88. South southeast wind 3 to 8 mph.
Friday Night
Mostly clear, with a low around 60. South southeast wind 3 to 5 mph.
Saturday
A 40 percent chance of showers after 1pm. Partly sunny, with a high near 83. Light and variable wind becoming east southeast 6 to 11 mph in the morning.
Saturday Night
Showers and possibly a thunderstorm before 1am, then showers likely. Low around 58. East northeast wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.
Sunday
Partly sunny, with a high near 76. East northeast wind 9 to 11 mph becoming west northwest in the afternoon.
Sunday Night
Partly cloudy, with a low around 57. Light southwest wind.
Columbus Day
Mostly sunny, with a high near 85. Light southwest wind becoming south southwest 6 to 11 mph in the morning.
Monday Night
Mostly clear, with a low around 58. South southwest wind 7 to 9 mph.
Tuesday
Sunny, with a high near 75. West wind 8 to 14 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 51. North northeast wind 6 to 11 mph.
Wednesday
Mostly sunny, with a high near 73. East northeast wind 6 to 9 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 88.95°W
Last Update:
10:31 pm CDT Oct 7, 2026
Forecast Valid:
12am CDT Oct 8, 2026-6pm CDT Oct 14, 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