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.

Fair

40°F

4°C

Humidity 62%
Wind Speed S 10 mph
Barometer 30.17 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 12 Jan 10:55 pm CST
Extended Forecast for

Valier IL

  • Tonight

    Tonight: Mostly clear, with a low around 35. South southwest wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 35 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60. Southwest wind 10 to 14 mph, with gusts as high as 22 mph.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 39. Southwest wind 6 to 8 mph becoming west northwest after midnight.

    Low: 39 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers before noon. Mostly cloudy, with a high near 45. North northwest wind 8 to 18 mph, with gusts as high as 26 mph.

    High: 45 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 18. North northwest wind 10 to 18 mph, with gusts as high as 26 mph.

    Low: 18 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 32. North northwest wind 6 to 10 mph becoming west southwest in the afternoon.

    High: 32 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 23. South southwest wind 5 to 11 mph, with gusts as high as 20 mph.

    Low: 23 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 45. West wind 10 to 16 mph, with gusts as high as 23 mph.

    High: 45 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 20. West wind around 10 mph.

    Low: 20 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 35. South southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Tuesday
Sunny, with a high near 60. Southwest wind 10 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 39. Southwest wind 6 to 8 mph becoming west northwest after midnight.
Wednesday
A 20 percent chance of showers before noon. Mostly cloudy, with a high near 45. North northwest wind 8 to 18 mph, with gusts as high as 26 mph.
Wednesday Night
Partly cloudy, with a low around 18. North northwest wind 10 to 18 mph, with gusts as high as 26 mph.
Thursday
Sunny, with a high near 32. North northwest wind 6 to 10 mph becoming west southwest in the afternoon.
Thursday Night
Mostly cloudy, with a low around 23. South southwest wind 5 to 11 mph, with gusts as high as 20 mph.
Friday
Partly sunny, with a high near 45. West wind 10 to 16 mph, with gusts as high as 23 mph.
Friday Night
Mostly cloudy, with a low around 20. West wind around 10 mph.
Saturday
Partly sunny, with a high near 30. West wind 10 to 14 mph, with gusts as high as 21 mph.
Saturday Night
Partly cloudy, with a low around 12. West wind around 10 mph.
Sunday
Mostly sunny, with a high near 26. West northwest wind 9 to 14 mph, with gusts as high as 18 mph.
Sunday Night
Mostly clear, with a low around 13. West southwest wind around 8 mph.
M.L.King Day
Mostly sunny, with a high near 36. West southwest 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:
10:26 pm CST Jan 12, 2026
Forecast Valid:
11pm CST Jan 12, 2026-6pm CST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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