National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Valier IL

  • Overnight

    Overnight: A 20 percent chance of snow before 3am. Mostly cloudy, with a low around 23. Light north northwest wind becoming north 5 to 10 mph.

    Low: 23 °F

    Slight Chance
    Snow

  • Thursday

    Thursday: Partly sunny, with a high near 31. North northeast wind 5 to 10 mph.

    High: 31 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 19. Light north wind.

    Low: 19 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 41. Calm wind becoming south southwest 5 to 7 mph in the afternoon.

    High: 41 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27. Southwest wind 3 to 6 mph.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 44. Light and variable wind becoming west around 5 mph.

    High: 44 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of freezing rain after midnight. Mostly cloudy, with a low around 29. Calm wind becoming northeast around 6 mph after midnight. Chance of precipitation is 20%.

    Low: 29 °F

    Mostly Cloudy
    then Slight
    Chance
    Freezing Rain

  • Sunday

    Sunday: A slight chance of showers before noon. Mostly cloudy, with a high near 39. North wind 6 to 10 mph.

    High: 39 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 21. North wind 6 to 8 mph.

    Low: 21 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of snow before 3am. Mostly cloudy, with a low around 23. Light north northwest wind becoming north 5 to 10 mph.
Thursday
Partly sunny, with a high near 31. North northeast wind 5 to 10 mph.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 19. Light north wind.
Friday
Sunny, with a high near 41. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 27. Southwest wind 3 to 6 mph.
Saturday
Mostly sunny, with a high near 44. Light and variable wind becoming west around 5 mph.
Saturday Night
A slight chance of freezing rain after midnight. Mostly cloudy, with a low around 29. Calm wind becoming northeast around 6 mph after midnight. Chance of precipitation is 20%.
Sunday
A slight chance of showers before noon. Mostly cloudy, with a high near 39. North wind 6 to 10 mph.
Sunday Night
Mostly cloudy, with a low around 21. North wind 6 to 8 mph.
Monday
Mostly sunny, with a high near 36. North wind around 6 mph becoming east in the afternoon.
Monday Night
Partly cloudy, with a low around 24. Light and variable wind becoming south southwest 5 to 7 mph after midnight.
Tuesday
Mostly sunny, with a high near 46. Southwest wind 8 to 13 mph, with gusts as high as 18 mph.
Tuesday Night
Mostly cloudy, with a low around 32. South southwest wind 8 to 11 mph, with gusts as high as 18 mph.
Wednesday
A chance of showers. Mostly cloudy, with a high near 50. West southwest wind 10 to 14 mph, with gusts as high as 21 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Valier IL
 38.01°N 89.05°W
Last Update:
12:46 am CST Dec 4, 2025
Forecast Valid:
1am CST Dec 4, 2025-6pm CST Dec 10, 2025
 
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