National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rainfall Across South Texas; Heat in the West

Excessive rainfall may produce locally considerable flash flooding over parts of South Texas, the western Gulf Coast, and Lower Mississippi River Valley through Thursday. Hot temperatures will persist over central and northern California and the Pacific Northwest through today. Read More >

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Partly Cloudy

58°F

14°C

Humidity 98%
Wind Speed Calm
Barometer 29.93 in
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 16 Jun 2:35 am CDT
Extended Forecast for

7 Miles WSW Goreville IL

  • Overnight

    Overnight: Mostly clear, with a low around 58. Calm wind.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Increasing clouds, with a high near 83. Calm wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

    High: 83 °F

    Sunny then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 3am. Partly cloudy, with a low around 61. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 61 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 88. Breezy, with a light south southeast wind becoming south southwest 17 to 22 mph in the morning. Winds could gust as high as 36 mph.

    High: 88 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Partly cloudy, with a low around 73. South southwest wind 9 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 70%.

    Low: 73 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 85. Southwest wind around 7 mph becoming north northwest in the afternoon. Chance of precipitation is 50%.

    High: 85 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Light north wind. Chance of precipitation is 50%.

    Low: 63 °F

    Chance
    Showers

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 82. Calm wind becoming north around 5 mph in the afternoon.

    High: 82 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 58. Calm wind.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Increasing clouds, with a high near 83. Calm wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Tuesday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 3am. Partly cloudy, with a low around 61. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 88. Breezy, with a light south southeast wind becoming south southwest 17 to 22 mph in the morning. Winds could gust as high as 36 mph.
Wednesday Night
A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Partly cloudy, with a low around 73. South southwest wind 9 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 70%.
Thursday
A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 85. Southwest wind around 7 mph becoming north northwest in the afternoon. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Light north wind. Chance of precipitation is 50%.
Juneteenth
Mostly sunny, with a high near 82. Calm wind becoming north around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 61. Calm wind.
Saturday
Sunny, with a high near 84. Calm wind becoming south southeast around 5 mph in the afternoon.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 66. Light south southeast wind.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 85. South southwest wind 5 to 13 mph, with gusts as high as 23 mph.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 70. South wind 7 to 10 mph, with gusts as high as 18 mph.
Monday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 86. West southwest wind 6 to 8 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles WSW Goreville IL
 37.52°N 89.1°W
Last Update:
1:55 am CDT Jun 16, 2026
Forecast Valid:
2am CDT Jun 16, 2026-6pm CDT Jun 22, 2026
 
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