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

59°F

15°C

Humidity 90%
Wind Speed NE 5 mph
Barometer 30.14 in
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 21 May 6:15 am CDT
Extended Forecast for

Valier ILSimilar City Names

  • Today

    Today: Mostly cloudy, with a high near 73. Light northeast wind increasing to 5 to 9 mph in the morning.

    High: 73 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 30 percent chance of showers after 5am. Mostly cloudy, with a low around 59. East northeast wind 6 to 9 mph.

    Low: 59 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after noon. High near 74. East northeast wind around 9 mph becoming south in the afternoon. Chance of precipitation is 90%.

    High: 74 °F

    Showers

  • Friday Night

    Friday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 61. Southeast wind 5 to 7 mph becoming west after midnight. Chance of precipitation is 70%.

    Low: 61 °F

    Showers
    Likely

  • Saturday

    Saturday: Partly sunny, with a high near 82. West wind around 6 mph.

    High: 82 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Calm wind.

    Low: 63 °F

    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 82. Light and variable wind. Chance of precipitation is 60%.

    High: 82 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Chance
    Showers

  • Memorial Day

    Memorial Day: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 81. Calm wind becoming east around 6 mph in the morning.

    High: 81 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Mostly cloudy, with a high near 73. Light northeast wind increasing to 5 to 9 mph in the morning.
Tonight
A 30 percent chance of showers after 5am. Mostly cloudy, with a low around 59. East northeast wind 6 to 9 mph.
Friday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after noon. High near 74. East northeast wind around 9 mph becoming south in the afternoon. Chance of precipitation is 90%.
Friday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 61. Southeast wind 5 to 7 mph becoming west after midnight. Chance of precipitation is 70%.
Saturday
Partly sunny, with a high near 82. West wind around 6 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Calm wind.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 82. Light and variable wind. Chance of precipitation is 60%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Calm wind.
Memorial Day
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 81. Calm wind becoming east around 6 mph in the morning.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. East wind around 5 mph becoming calm in the evening.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 83. Southeast wind 3 to 8 mph.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Southeast wind 3 to 7 mph.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 85. South southeast 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:
Valier ILSimilar City Names
 38.03°N 89.04°W
Last Update:
6:16 am CDT May 21, 2026
Forecast Valid:
6am CDT May 21, 2026-6pm CDT May 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