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

66°F

19°C

Humidity 91%
Wind Speed S 16 mph
Barometer 29.82 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 28 Dec 1:15 am CST
Extended Forecast for

Whiteash IL

  • Overnight

    Overnight: Patchy fog before 4am. Otherwise, cloudy, with a steady temperature around 67. South southwest wind around 14 mph, with gusts as high as 25 mph.

    Low: 67 °F

    Patchy Fog

  • Sunday

    Sunday: A chance of showers before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then showers and possibly a thunderstorm after 5pm. High near 70. Breezy, with a south southwest wind 14 to 22 mph, with gusts as high as 38 mph. Chance of precipitation is 80%.

    High: 70 °F

    Breezy.
    Cloudy then
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly before 8pm. The rain could be heavy at times. Cloudy during the early evening, then gradual clearing, with a low around 20. Blustery, with a west northwest wind 21 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 60%.

    Low: 20 °F

    Blustery.
    Heavy Rain
    then Mostly
    Clear

  • Monday

    Monday: Mostly sunny, with a high near 30. Blustery, with a west northwest wind 16 to 21 mph, with gusts as high as 33 mph.

    High: 30 °F

    Mostly Sunny
    and Blustery
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 18. Northwest wind 9 to 16 mph, with gusts as high as 23 mph.

    Low: 18 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 34. Northwest wind 5 to 8 mph becoming west southwest in the afternoon.

    High: 34 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 26. West southwest wind 3 to 6 mph.

    Low: 26 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 44. West wind 6 to 10 mph.

    High: 44 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 27. West wind around 6 mph.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog before 4am. Otherwise, cloudy, with a steady temperature around 67. South southwest wind around 14 mph, with gusts as high as 25 mph.
Sunday
A chance of showers before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then showers and possibly a thunderstorm after 5pm. High near 70. Breezy, with a south southwest wind 14 to 22 mph, with gusts as high as 38 mph. Chance of precipitation is 80%.
Sunday Night
Showers likely, mainly before 8pm. The rain could be heavy at times. Cloudy during the early evening, then gradual clearing, with a low around 20. Blustery, with a west northwest wind 21 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 30. Blustery, with a west northwest wind 16 to 21 mph, with gusts as high as 33 mph.
Monday Night
Mostly clear, with a low around 18. Northwest wind 9 to 16 mph, with gusts as high as 23 mph.
Tuesday
Sunny, with a high near 34. Northwest wind 5 to 8 mph becoming west southwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 26. West southwest wind 3 to 6 mph.
Wednesday
Mostly sunny, with a high near 44. West wind 6 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 27. West wind around 6 mph.
New Year's Day
Mostly sunny, with a high near 45. Northwest wind 5 to 9 mph.
Thursday Night
Partly cloudy, with a low around 24. Light north wind.
Friday
Partly sunny, with a high near 44. Light and variable wind becoming south 5 to 7 mph in the morning.
Friday Night
A slight chance of showers. Mostly cloudy, with a low around 35. South wind around 6 mph.
Saturday
Mostly cloudy, with a high near 52. South southwest wind 6 to 8 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:
1:11 am CST Dec 28, 2025
Forecast Valid:
1am CST Dec 28, 2025-6pm CST Jan 3, 2026
 
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Additional Resources

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