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

37°F

3°C

Humidity 87%
Wind Speed SW 12 mph
Barometer 30.15 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 21 Jan 9:45 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

  • Today

    Today: Partly sunny, with a high near 46. West southwest wind 7 to 14 mph, with gusts as high as 23 mph.

    High: 46 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 24. West southwest wind around 6 mph becoming light and variable after midnight.

    Low: 24 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 40. North wind 3 to 5 mph.

    High: 40 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 15. Light northeast wind becoming north 8 to 13 mph after midnight. Winds could gust as high as 22 mph.

    Low: 15 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 22. North wind around 15 mph, with gusts as high as 23 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 5. North northeast wind around 14 mph, with gusts as high as 21 mph.

    Low: 5 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Saturday

    Saturday: Snow showers likely, mainly after noon. Cloudy, with a high near 15. Northeast wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 15 °F

    Chance Snow
    Showers then
    Snow Showers
    Likely

  • Saturday Night

    Saturday Night: Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 10. North northeast wind 7 to 10 mph.

    Low: 10 °F

    Snow Showers
    Likely

  • Sunday

    Sunday: A slight chance of snow showers before noon. Mostly cloudy, with a high near 20. North wind 7 to 9 mph.

    High: 20 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

Detailed Forecast

Today
Partly sunny, with a high near 46. West southwest wind 7 to 14 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a low around 24. West southwest wind around 6 mph becoming light and variable after midnight.
Thursday
Mostly sunny, with a high near 40. North wind 3 to 5 mph.
Thursday Night
Mostly cloudy, with a low around 15. Light northeast wind becoming north 8 to 13 mph after midnight. Winds could gust as high as 22 mph.
Friday
Mostly cloudy, with a high near 22. North wind around 15 mph, with gusts as high as 23 mph.
Friday Night
A 20 percent chance of snow showers after midnight. Mostly cloudy, with a low around 5. North northeast wind around 14 mph, with gusts as high as 21 mph.
Saturday
Snow showers likely, mainly after noon. Cloudy, with a high near 15. Northeast wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Saturday Night
Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 10. North northeast wind 7 to 10 mph.
Sunday
A slight chance of snow showers before noon. Mostly cloudy, with a high near 20. North wind 7 to 9 mph.
Sunday Night
Partly cloudy, with a low around 6. Northwest wind 3 to 6 mph.
Monday
Sunny, with a high near 23. Northwest wind 5 to 7 mph becoming west southwest in the afternoon.
Monday Night
Mostly clear, with a low around 7. South southwest wind 3 to 5 mph.
Tuesday
Mostly sunny, with a high near 31. South southwest wind 5 to 8 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Whiteash IL
 37.78°N 88.92°W
Last Update:
9:02 am CST Jan 21, 2026
Forecast Valid:
10am CST Jan 21, 2026-6pm CST Jan 27, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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