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.

Freezing Fog

31°F

-1°C

Humidity 96%
Wind Speed NE 5 mph
Barometer 29.89 in
Dewpoint 30°F (-1°C)
Visibility 0.50 mi
Wind Chill26°F (-3°C)
Last update 2 Jan 2:55 am CST
Extended Forecast for

Whiteash IL

  • Overnight

    Overnight: Areas of fog after 5am. Areas of freezing fog before 5am. Otherwise, cloudy, with a steady temperature around 33. Light north northeast wind.

    Low: 33 °F

    Areas
    Freezing Fog
    and Areas Fog

  • Friday

    Friday: Areas of fog before 10am. Otherwise, cloudy, with a high near 38. Northeast wind 3 to 8 mph.

    High: 38 °F

    Areas Fog
    then Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 29. Northeast wind 5 to 7 mph.

    Low: 29 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 42. North northeast wind 6 to 8 mph.

    High: 42 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 24. North northwest wind around 5 mph becoming calm in the evening.

    Low: 24 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 42. Light and variable wind.

    High: 42 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 31. Calm wind becoming south 5 to 7 mph after midnight.

    Low: 31 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 55. South southwest wind 7 to 13 mph, with gusts as high as 20 mph.

    High: 55 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 45. South southwest wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Overnight
Areas of fog after 5am. Areas of freezing fog before 5am. Otherwise, cloudy, with a steady temperature around 33. Light north northeast wind.
Friday
Areas of fog before 10am. Otherwise, cloudy, with a high near 38. Northeast wind 3 to 8 mph.
Friday Night
Mostly cloudy, with a low around 29. Northeast wind 5 to 7 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 42. North northeast wind 6 to 8 mph.
Saturday Night
Mostly clear, with a low around 24. North northwest wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 42. Light and variable wind.
Sunday Night
Partly cloudy, with a low around 31. Calm wind becoming south 5 to 7 mph after midnight.
Monday
Sunny, with a high near 55. South southwest wind 7 to 13 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 45. South southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Tuesday
Partly sunny, with a high near 62. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 42. South southwest wind around 6 mph becoming light and variable after midnight.
Wednesday
Partly sunny, with a high near 61. Light and variable wind becoming southwest around 6 mph in the morning.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 47. Southeast wind 3 to 6 mph.
Thursday
A chance of showers. Mostly cloudy, with a high near 62. South southeast wind 7 to 10 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Whiteash IL
 37.78°N 88.92°W
Last Update:
2:52 am CST Jan 2, 2026
Forecast Valid:
3am CST Jan 2, 2026-6pm CST Jan 8, 2026
 
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