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

68°F

20°C

Humidity 78%
Wind Speed SW 7 mph
Barometer 29.70 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 15 Nov 5:45 pm CST
Extended Forecast for

Whiteash IL

  • Tonight

    Tonight: Partly cloudy, with a low around 46. Southwest wind 6 to 8 mph becoming north northwest after midnight.

    Low: 46 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 60. North northwest wind 6 to 10 mph.

    High: 60 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 35. Calm wind.

    Low: 35 °F

    Clear

  • Monday

    Monday: A 20 percent chance of showers after noon. Increasing clouds, with a high near 61. Calm wind becoming southeast 5 to 9 mph in the morning.

    High: 61 °F

    Sunny then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: Showers likely, then showers and possibly a thunderstorm after midnight. Low around 48. Southeast wind 7 to 10 mph. Chance of precipitation is 80%.

    Low: 48 °F

    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before noon, then a slight chance of showers. Partly sunny, with a high near 73. South southwest wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

    High: 73 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 53. Southwest wind 6 to 8 mph.

    Low: 53 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers. Mostly cloudy, with a high near 68. Southeast wind 6 to 8 mph becoming southwest in the morning.

    High: 68 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after midnight. Mostly cloudy, with a low around 55. Southeast wind 3 to 6 mph.

    Low: 55 °F

    Showers
    Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 46. Southwest wind 6 to 8 mph becoming north northwest after midnight.
Sunday
Sunny, with a high near 60. North northwest wind 6 to 10 mph.
Sunday Night
Clear, with a low around 35. Calm wind.
Monday
A 20 percent chance of showers after noon. Increasing clouds, with a high near 61. Calm wind becoming southeast 5 to 9 mph in the morning.
Monday Night
Showers likely, then showers and possibly a thunderstorm after midnight. Low around 48. Southeast wind 7 to 10 mph. Chance of precipitation is 80%.
Tuesday
A chance of showers and thunderstorms before noon, then a slight chance of showers. Partly sunny, with a high near 73. South southwest wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 53. Southwest wind 6 to 8 mph.
Wednesday
A chance of showers. Mostly cloudy, with a high near 68. Southeast wind 6 to 8 mph becoming southwest in the morning.
Wednesday Night
Showers likely, mainly after midnight. Mostly cloudy, with a low around 55. Southeast wind 3 to 6 mph.
Thursday
Showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 68. South southeast wind 6 to 11 mph.
Thursday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 56. South wind 9 to 11 mph.
Friday
Showers likely. Partly sunny, with a high near 66. Southwest wind 11 to 14 mph, with gusts as high as 21 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 45. Southwest wind 7 to 10 mph becoming west northwest after midnight.
Saturday
A slight chance of showers. Partly sunny, with a high near 58. West northwest wind 7 to 10 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Whiteash IL
 37.78°N 88.92°W
Last Update:
3:21 pm CST Nov 15, 2025
Forecast Valid:
6pm CST Nov 15, 2025-6pm CST Nov 22, 2025
 
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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