Severe Thunderstorms in the Central Plains; Heavy Rainfall in the Mississippi and Tennessee Valleys; Critical Fire Weather in the Southwest

Scattered severe storms capable of large to very large hail, severe wind gusts, and a few tornadoes will be possible across the central Plains. Heavy rain will pose a flash flood threat across portions of the Mississippi Valley into the Tennessee and Ohio Valleys. Hot, dry and windy conditions will continue to bring a critical fire weather threat from the Southwest into the Great Basin. Read More >

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Overcast

79°F

26°C

Humidity 89%
Wind Speed S 12 mph
Barometer 29.98 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 8 Jun 9:45 am CDT
Extended Forecast for

Vienna IL

Flood Watch until June 9, 07:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until June 9, 07:00am

    NOW until 7:00am Tue

    Flood Watch

  • Today

    High: 85 °F

    Chance
    T-storms then
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely before 2am, then showers likely and possibly a thunderstorm between 2am and 4am, then a chance of showers and thunderstorms after 4am. Some of the storms could produce heavy rainfall.  Mostly cloudy, with a low around 72. South wind 3 to 7 mph.  Chance of precipitation is 70%.

    Low: 72 °F

    Heavy Rain
    then Showers
    Likely

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly before 2pm.  Mostly cloudy, then gradually becoming sunny, with a high near 90. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 90 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 74. South southwest wind 3 to 6 mph.

    Low: 74 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 92. South southwest wind 5 to 11 mph, with gusts as high as 20 mph.

    High: 92 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75. South wind 5 to 8 mph.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 90. South southwest wind 6 to 11 mph, with gusts as high as 22 mph.

    High: 90 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 72. South southwest wind 3 to 8 mph.

    Low: 72 °F

    Showers
    Likely

Detailed Forecast

Today
Showers and thunderstorms likely before 1pm, then showers and possibly a thunderstorm between 1pm and 2pm, then showers and thunderstorms likely after 2pm. High near 85. South wind 7 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.
Tonight
Showers and thunderstorms likely before 2am, then showers likely and possibly a thunderstorm between 2am and 4am, then a chance of showers and thunderstorms after 4am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 72. South wind 3 to 7 mph. Chance of precipitation is 70%.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly before 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 90. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 74. South southwest wind 3 to 6 mph.
Wednesday
Sunny, with a high near 92. South southwest wind 5 to 11 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 75. South wind 5 to 8 mph.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. South southwest wind 6 to 11 mph, with gusts as high as 22 mph.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. South southwest wind 3 to 8 mph.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Calm wind becoming west northwest around 6 mph in the morning.
Friday Night
A chance of showers after 1am. Mostly clear, with a low around 70. Calm wind.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Calm wind becoming south around 6 mph in the afternoon.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 70. Light south southeast wind.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 87. Calm wind becoming west 5 to 7 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
Vienna IL
 37.42°N 88.88°W
7:01 am CDT Jun 8, 2026
10am CDT Jun 8, 2026-6pm CDT Jun 14, 2026
 
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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