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.

Mostly Cloudy

81°F

27°C

Humidity 58%
Wind Speed SE 6 mph
Barometer 29.99 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 12 Jun 6:45 pm CDT
Extended Forecast for

Valier IL

  • Tonight

    Tonight: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Increasing clouds, with a low around 70. Light south southeast wind. Chance of precipitation is 60%.

    Low: 70 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 82. South southeast wind 5 to 10 mph. Chance of precipitation is 90%.

    High: 82 °F

    Showers then
    T-storms

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. Southeast wind 3 to 6 mph. Chance of precipitation is 60%.

    Low: 70 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 82. South southwest wind 5 to 7 mph. Chance of precipitation is 80%.

    High: 82 °F

    Chance
    Showers then
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 70. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 86. Calm wind becoming north northwest around 5 mph in the afternoon. Chance of precipitation is 40%.

    High: 86 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers. Partly cloudy, with a low around 70. Light and variable wind.

    Low: 70 °F

    Slight Chance
    Showers

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 86. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 86 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms, then a chance of showers after 1am. Mostly cloudy, with a low around 71. South southwest wind around 5 mph becoming calm in the evening.

    Low: 71 °F

    Slight Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Increasing clouds, with a low around 70. Light south southeast wind. Chance of precipitation is 60%.
Friday
Showers and possibly a thunderstorm. High near 82. South southeast wind 5 to 10 mph. Chance of precipitation is 90%.
Friday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. Southeast wind 3 to 6 mph. Chance of precipitation is 60%.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 82. South southwest wind 5 to 7 mph. Chance of precipitation is 80%.
Saturday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 70. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 86. Calm wind becoming north northwest around 5 mph in the afternoon. Chance of precipitation is 40%.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 70. Light and variable wind.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 86. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Mostly cloudy, with a low around 71. South southwest wind around 5 mph becoming calm in the evening.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 88. South southwest wind 5 to 9 mph.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 73. South wind around 7 mph.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 90. Southwest wind 8 to 13 mph, with gusts as high as 20 mph.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 75. South southwest wind 6 to 9 mph.
Juneteenth
A chance of showers and thunderstorms. Mostly sunny, with a high near 89. West southwest wind 6 to 9 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Valier IL
 38.01°N 89.05°W
Last Update:
5:47 pm CDT Jun 12, 2025
Forecast Valid:
6pm CDT Jun 12, 2025-6pm CDT Jun 19, 2025
 
Forecast Discussion
 
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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