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

73°F

23°C

Humidity 65%
Wind Speed SW 13 G 20 mph
Barometer 29.96 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 14 Apr 11:35 pm CDT
Extended Forecast for

6 Miles WNW Goreville IL

  • Tonight

    Tonight: Partly cloudy, with a low around 68. South southwest wind 11 to 14 mph, with gusts as high as 23 mph.

    Low: 68 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms between 1pm and 5pm, then a slight chance of thunderstorms after 5pm. Partly sunny, with a high near 83. South southwest wind 11 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    High: 83 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm, mainly after 1am. Mostly cloudy, with a low around 64. South southwest wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    Low: 64 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 10am, then showers between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 80. Southwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.

    High: 80 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly clear, with a low around 62. South southwest wind 5 to 8 mph. Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. South wind 5 to 10 mph, with gusts as high as 21 mph.

    High: 85 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 65. South wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 65 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 75. South southwest wind around 14 mph becoming west in the afternoon. Winds could gust as high as 26 mph.

    High: 75 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers, mainly before 1am. Mostly cloudy, with a low around 43. West northwest wind 9 to 11 mph, with gusts as high as 20 mph.

    Low: 43 °F

    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 68. South southwest wind 11 to 14 mph, with gusts as high as 23 mph.
Wednesday
A slight chance of showers and thunderstorms between 1pm and 5pm, then a slight chance of thunderstorms after 5pm. Partly sunny, with a high near 83. South southwest wind 11 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Wednesday Night
Showers likely and possibly a thunderstorm, mainly after 1am. Mostly cloudy, with a low around 64. South southwest wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Thursday
Showers and possibly a thunderstorm before 10am, then showers between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 80. Southwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.
Thursday Night
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly clear, with a low around 62. South southwest wind 5 to 8 mph. Chance of precipitation is 30%.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. South wind 5 to 10 mph, with gusts as high as 21 mph.
Friday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 65. South wind 9 to 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. Partly sunny, with a high near 75. South southwest wind around 14 mph becoming west in the afternoon. Winds could gust as high as 26 mph.
Saturday Night
A chance of showers, mainly before 1am. Mostly cloudy, with a low around 43. West northwest wind 9 to 11 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 63. Northwest wind 8 to 10 mph, with gusts as high as 21 mph.
Sunday Night
Clear, with a low around 39. North northwest wind 5 to 7 mph becoming northeast after midnight.
Monday
Sunny, with a high near 67. East wind 5 to 7 mph becoming south in the afternoon.
Monday Night
Mostly clear, with a low around 46. South southeast wind around 6 mph.
Tuesday
Sunny, with a high near 72. South wind 7 to 10 mph, with gusts as high as 20 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:
9:42 pm CDT Apr 14, 2026
Forecast Valid:
11pm CDT Apr 14, 2026-6pm CDT Apr 21, 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