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.

Fair

75°F

24°C

Humidity 69%
Wind Speed S 16 mph
Barometer 29.99 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 14 Apr 9:45 am CDT
Extended Forecast for

6 Miles WNW Goreville IL

  • Today

    Today: Sunny, with a high near 85. South southwest wind 14 to 17 mph, with gusts as high as 29 mph.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: A 20 percent chance of showers between 3am and 4am. Partly cloudy, with a low around 67. South southwest wind 11 to 15 mph, with gusts as high as 26 mph.

    Low: 67 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers between 7am and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 83. South southwest wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    High: 83 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. South southwest wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    Low: 65 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 78. South southwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.

    High: 78 °F

    Showers then
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly clear, with a low around 60. South wind 5 to 8 mph. Chance of precipitation is 20%.

    Low: 60 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83. South southwest wind 6 to 11 mph, with gusts as high as 21 mph.

    High: 83 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64. South wind around 11 mph, with gusts as high as 21 mph.

    Low: 64 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 74. South southwest wind 13 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph.

    High: 74 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 85. South southwest wind 14 to 17 mph, with gusts as high as 29 mph.
Tonight
A 20 percent chance of showers between 3am and 4am. Partly cloudy, with a low around 67. South southwest wind 11 to 15 mph, with gusts as high as 26 mph.
Wednesday
A slight chance of showers between 7am and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 83. South southwest wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Wednesday Night
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. South southwest wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Thursday
Showers and possibly a thunderstorm. High near 78. South southwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.
Thursday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly clear, with a low around 60. South wind 5 to 8 mph. Chance of precipitation is 20%.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83. South southwest wind 6 to 11 mph, with gusts as high as 21 mph.
Friday Night
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64. South wind around 11 mph, with gusts as high as 21 mph.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 74. South southwest wind 13 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph.
Saturday Night
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 43. Northwest wind 8 to 11 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 66. West northwest wind 7 to 10 mph, with gusts as high as 18 mph.
Sunday Night
Mostly clear, with a low around 42. Northwest wind 5 to 8 mph becoming northeast after midnight.
Monday
Sunny, with a high near 69. East wind 5 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WNW Goreville IL
 37.58°N 89.07°W
Last Update:
9:07 am CDT Apr 14, 2026
Forecast Valid:
10am CDT Apr 14, 2026-6pm CDT Apr 20, 2026
 
Forecast Discussion
 
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Additional Resources

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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