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.

Fair

25°F

-4°C

Humidity 48%
Wind Speed Calm
Barometer 30.41 in
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Last update 27 Jan 8:35 pm CST
Extended Forecast for

Whiteash IL

  • Tonight

    Tonight: Partly cloudy, with a low around 0. Calm wind.

    Low: 0 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Patchy fog between 7am and 9am. Otherwise, mostly sunny, with a high near 29. Wind chill values as low as zero. Calm wind becoming west 5 to 7 mph.

    High: 29 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 11. Calm wind.

    Low: 11 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 27. Calm wind becoming northeast around 6 mph in the morning.

    High: 27 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 8. North wind around 6 mph.

    Low: 8 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 18. North wind 6 to 10 mph.

    High: 18 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 2. North wind 6 to 9 mph.

    Low: 2 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 17. North northwest wind 7 to 10 mph.

    High: 17 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 2. Northwest wind around 6 mph becoming calm in the evening.

    Low: 2 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 0. Calm wind.
Wednesday
Patchy fog between 7am and 9am. Otherwise, mostly sunny, with a high near 29. Wind chill values as low as zero. Calm wind becoming west 5 to 7 mph.
Wednesday Night
Partly cloudy, with a low around 11. Calm wind.
Thursday
Mostly cloudy, with a high near 27. Calm wind becoming northeast around 6 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 8. North wind around 6 mph.
Friday
Mostly sunny, with a high near 18. North wind 6 to 10 mph.
Friday Night
Partly cloudy, with a low around 2. North wind 6 to 9 mph.
Saturday
Mostly sunny, with a high near 17. North northwest wind 7 to 10 mph.
Saturday Night
Partly cloudy, with a low around 2. Northwest wind around 6 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 25. Light and variable wind becoming west southwest 5 to 7 mph in the morning.
Sunday Night
A slight chance of snow showers. Mostly cloudy, with a low around 13. South southwest wind 3 to 5 mph.
Monday
Partly sunny, with a high near 33. West wind 5 to 8 mph.
Monday Night
Mostly cloudy, with a low around 16. Light west wind.
Tuesday
Partly sunny, with a high near 34. Light and variable wind becoming south 5 to 7 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Whiteash IL
 37.78°N 88.92°W
Last Update:
8:31 pm CST Jan 27, 2026
Forecast Valid:
8pm CST Jan 27, 2026-6pm CST Feb 3, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation