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

82°F

28°C

Humidity 74%
Wind Speed S 14 mph
Barometer 30.00 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 8 Jun 10:45 am CDT
Extended Forecast for

Herrin ILSimilar City Names

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: 84 °F

    T-storms
    Likely

  • Tonight

    Tonight: A chance of showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 3am, then a chance of showers and thunderstorms after 3am.  Mostly cloudy, with a low around 72. South wind 6 to 9 mph.  Chance of precipitation is 60%.

    Low: 72 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms after 5pm.  Mostly cloudy, then gradually becoming sunny, with a high near 90. Southwest wind 9 to 11 mph, with gusts as high as 18 mph.  Chance of precipitation is 30%.

    High: 90 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 75. South southwest wind around 8 mph.

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 92. South southwest wind 7 to 14 mph, with gusts as high as 21 mph.

    High: 92 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76. South wind 8 to 13 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly after 1pm.  Mostly sunny, with a high near 91. South southwest wind 8 to 16 mph, with gusts as high as 23 mph.

    High: 91 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm.  Partly cloudy, with a low around 72. South southwest wind 5 to 13 mph, with gusts as high as 18 mph.

    Low: 72 °F

    Showers
    Likely

Detailed Forecast

Today
Showers and thunderstorms likely, mainly before 4pm. Partly sunny, with a high near 84. South wind around 11 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.
Tonight
A chance of showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 3am, then a chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 72. South wind 6 to 9 mph. Chance of precipitation is 60%.
Tuesday
A chance of showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms after 5pm. Mostly cloudy, then gradually becoming sunny, with a high near 90. Southwest wind 9 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly clear, with a low around 75. South southwest wind around 8 mph.
Wednesday
Sunny, with a high near 92. South southwest wind 7 to 14 mph, with gusts as high as 21 mph.
Wednesday Night
Mostly clear, with a low around 76. South wind 8 to 13 mph, with gusts as high as 20 mph.
Thursday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91. South southwest wind 8 to 16 mph, with gusts as high as 23 mph.
Thursday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 72. South southwest wind 5 to 13 mph, with gusts as high as 18 mph.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 89. West wind around 6 mph becoming north in the afternoon.
Friday Night
A chance of showers after 1am. Mostly clear, with a low around 70. Light and variable wind.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 89. Calm wind becoming south southwest 5 to 7 mph in the morning.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71. South southwest wind around 5 mph becoming calm in the evening.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 86. West wind 5 to 8 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Herrin ILSimilar City Names
 37.8°N 89.03°W
7:01 am CDT Jun 8, 2026
11am CDT Jun 8, 2026-6pm CDT Jun 14, 2026
 
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Additional Resources

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