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

33°F

1°C

Humidity 53%
Wind Speed Calm
Barometer 30.31 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 22 Jan 1:55 am CST
Extended Forecast for

Whiteash IL

Winter Storm Watch January 24, 12:00am until January 25, 12:00pm
Click here for hazard details and duration
Winter Storm Watch

  • Overnight

    Overnight: Mostly clear, with a low around 26. North northwest wind around 7 mph.

    Low: 26 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 40. North northwest wind 3 to 6 mph.

    High: 40 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 16. Light and variable wind becoming north 6 to 11 mph after midnight. Winds could gust as high as 23 mph.

    Low: 16 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 22. North wind 14 to 16 mph, with gusts as high as 24 mph.

    High: 22 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 20 percent chance of snow showers after midnight. Mostly cloudy, with a low around 8. North northeast wind 13 to 15 mph, with gusts as high as 22 mph.

    Low: 8 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Saturday

    Saturday: Snow showers, mainly after noon. High near 16. Northeast wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.

    High: 16 °F

    Chance Snow
    Showers then
    Snow Showers

  • Saturday Night

    Saturday Night: Snow showers. Low around 12. Northeast wind 8 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 90%.

    Low: 12 °F

    Snow Showers

  • Sunday

    Sunday: A chance of snow showers, mainly before noon. Mostly cloudy, with a high near 19. North wind 9 to 11 mph, with gusts as high as 18 mph.

    High: 19 °F

    Chance Snow
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 3. West northwest wind 6 to 8 mph.

    Low: 3 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 26. North northwest wind around 7 mph.
Thursday
Mostly sunny, with a high near 40. North northwest wind 3 to 6 mph.
Thursday Night
Partly cloudy, with a low around 16. Light and variable wind becoming north 6 to 11 mph after midnight. Winds could gust as high as 23 mph.
Friday
Mostly cloudy, with a high near 22. North wind 14 to 16 mph, with gusts as high as 24 mph.
Friday Night
A 20 percent chance of snow showers after midnight. Mostly cloudy, with a low around 8. North northeast wind 13 to 15 mph, with gusts as high as 22 mph.
Saturday
Snow showers, mainly after noon. High near 16. Northeast wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.
Saturday Night
Snow showers. Low around 12. Northeast wind 8 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 90%.
Sunday
A chance of snow showers, mainly before noon. Mostly cloudy, with a high near 19. North wind 9 to 11 mph, with gusts as high as 18 mph.
Sunday Night
Mostly cloudy, with a low around 3. West northwest wind 6 to 8 mph.
Monday
Sunny, with a high near 21. West northwest wind 6 to 8 mph becoming southwest in the afternoon.
Monday Night
Mostly clear, with a low around 7. South southwest wind around 6 mph.
Tuesday
Mostly sunny, with a high near 32. South southwest wind 6 to 8 mph.
Tuesday Night
Mostly cloudy, with a low around 18. South southwest wind around 6 mph.
Wednesday
Partly sunny, with a high near 32. West northwest wind 6 to 8 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Whiteash IL
 37.78°N 88.92°W
Last Update:
1:26 am CST Jan 22, 2026
Forecast Valid:
2am CST Jan 22, 2026-6pm CST Jan 28, 2026
 
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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