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.

Fog/Mist

39°F

4°C

Humidity 93%
Wind Speed E 9 mph
Barometer 30.24 in
Dewpoint 37°F (3°C)
Visibility 4.00 mi
Wind Chill33°F (1°C)
Last update 2 Mar 10:45 am CST
Extended Forecast for

6 Miles WNW Goreville IL

  • Today

    Today: Cloudy, with a high near 42. Northeast wind around 7 mph.

    High: 42 °F

    Cloudy

  • Tonight

    Tonight: A chance of showers before 3am, then a chance of showers and thunderstorms between 3am and 5am, then showers likely and possibly a thunderstorm after 5am. Cloudy, with a steady temperature around 44. East northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 44 °F

    Cloudy then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely before 9am, then a chance of showers after noon. Mostly cloudy, with a high near 69. Light and variable wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 60%.

    High: 69 °F

    Showers
    Likely then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 58. South wind 6 to 9 mph.

    Low: 58 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 73. South southwest wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    High: 73 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 60. South wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    Low: 60 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: Showers. High near 69. Southwest wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.

    High: 69 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 60. South wind 7 to 9 mph.

    Low: 60 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers and thunderstorms before noon, then a slight chance of showers. Partly sunny, with a high near 76. South southwest wind 10 to 15 mph, with gusts as high as 26 mph.

    High: 76 °F

    Chance
    Showers

Detailed Forecast

Today
Cloudy, with a high near 42. Northeast wind around 7 mph.
Tonight
A chance of showers before 3am, then a chance of showers and thunderstorms between 3am and 5am, then showers likely and possibly a thunderstorm after 5am. Cloudy, with a steady temperature around 44. East northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Tuesday
Showers likely before 9am, then a chance of showers after noon. Mostly cloudy, with a high near 69. Light and variable wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 60%.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 58. South wind 6 to 9 mph.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 73. South southwest wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 60. South wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Thursday
Showers. High near 69. Southwest wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.
Thursday Night
A chance of showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 60. South wind 7 to 9 mph.
Friday
A chance of showers and thunderstorms before noon, then a slight chance of showers. Partly sunny, with a high near 76. South southwest wind 10 to 15 mph, with gusts as high as 26 mph.
Friday Night
A chance of showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 60. South wind around 11 mph, with gusts as high as 21 mph.
Saturday
Showers and possibly a thunderstorm. Cloudy, with a high near 68. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 51. West wind around 6 mph becoming north northeast after midnight.
Sunday
A chance of showers. Mostly cloudy, with a high near 65. North northeast wind 5 to 7 mph becoming south in the afternoon.
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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:
10:51 am CST Mar 2, 2026
Forecast Valid:
11am CST Mar 2, 2026-6pm CDT Mar 8, 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