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: Mostly cloudy, with a low around 28. Southwest wind around 6 mph.

    Low: 28 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 44. Light and variable wind.

    High: 44 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after midnight. Cloudy, with a steady temperature around 37. Calm wind becoming south around 5 mph after midnight.

    Low: 37 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers before noon. Mostly cloudy, with a high near 46. South wind 5 to 10 mph becoming north in the afternoon.

    High: 46 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Sunday Night

    Sunday Night: A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 22. North wind 7 to 10 mph.

    Low: 22 °F

    Chance Snow
    Showers then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 35. North wind 3 to 7 mph.

    High: 35 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 23. Calm wind becoming south southwest 5 to 9 mph after midnight.

    Low: 23 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 48. South southwest wind 10 to 14 mph, with gusts as high as 21 mph.

    High: 48 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38. South southwest wind around 14 mph, with gusts as high as 22 mph.

    Low: 38 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 28. Southwest wind around 6 mph.
Saturday
Partly sunny, with a high near 44. Light and variable wind.
Saturday Night
A 20 percent chance of showers after midnight. Cloudy, with a steady temperature around 37. Calm wind becoming south around 5 mph after midnight.
Sunday
A 20 percent chance of showers before noon. Mostly cloudy, with a high near 46. South wind 5 to 10 mph becoming north in the afternoon.
Sunday Night
A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 22. North wind 7 to 10 mph.
Monday
Mostly sunny, with a high near 35. North wind 3 to 7 mph.
Monday Night
Partly cloudy, with a low around 23. Calm wind becoming south southwest 5 to 9 mph after midnight.
Tuesday
Mostly sunny, with a high near 48. South southwest wind 10 to 14 mph, with gusts as high as 21 mph.
Tuesday Night
Mostly cloudy, with a low around 38. South southwest wind around 14 mph, with gusts as high as 22 mph.
Wednesday
A chance of showers. Partly sunny, with a high near 47. West wind 10 to 16 mph, with gusts as high as 22 mph.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 27. West northwest wind 7 to 9 mph.
Thursday
Mostly cloudy, with a high near 42. North wind 7 to 10 mph becoming south southwest in the afternoon.
Thursday Night
Mostly cloudy, with a low around 24. South southwest wind around 7 mph becoming northwest after midnight.
Friday
Partly sunny, with a high near 35. Northwest wind 7 to 11 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Valier IL
 38.01°N 89.05°W
Last Update:
10:36 pm CST Dec 5, 2025
Forecast Valid:
2am CST Dec 6, 2025-6pm CST Dec 12, 2025
 
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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