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

Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

76°F

24°C

Humidity 54%
Wind Speed S 12 mph
Barometer 29.90 in
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 15 Apr 7:15 pm CDT
Extended Forecast for

6 Miles WNW Goreville IL

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4am. Low around 62. South southwest wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.

    Low: 62 °F

    Slight Chance
    T-storms then
    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, then gradually becoming sunny, with a high near 79. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    High: 79 °F

    Chance
    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 59. South southwest wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. South wind 5 to 13 mph, with gusts as high as 23 mph.

    High: 84 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 59. South wind 11 to 14 mph, with gusts as high as 23 mph.

    Low: 59 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 69. South southwest wind around 14 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 70%.

    High: 69 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 41. Northwest wind 7 to 11 mph, with gusts as high as 21 mph.

    Low: 41 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 65. Northwest wind 6 to 10 mph, with gusts as high as 21 mph.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 42. North northwest wind around 6 mph becoming east southeast after midnight.

    Low: 42 °F

    Clear

Detailed Forecast

Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4am. Low around 62. South southwest wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.
Thursday
A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, then gradually becoming sunny, with a high near 79. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
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 59. South southwest wind 3 to 6 mph. Chance of precipitation is 30%.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. South wind 5 to 13 mph, with gusts as high as 23 mph.
Friday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 59. South wind 11 to 14 mph, with gusts as high as 23 mph.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 69. South southwest wind around 14 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 70%.
Saturday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 41. Northwest wind 7 to 11 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 65. Northwest wind 6 to 10 mph, with gusts as high as 21 mph.
Sunday Night
Clear, with a low around 42. North northwest wind around 6 mph becoming east southeast after midnight.
Monday
Sunny, with a high near 69. South wind 5 to 8 mph.
Monday Night
Mostly clear, with a low around 49. South wind around 7 mph.
Tuesday
Sunny, with a high near 74. South southwest wind 8 to 11 mph, with gusts as high as 22 mph.
Tuesday Night
Partly cloudy, with a low around 54. South southwest wind around 9 mph.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 77. South southwest wind 8 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:
6:36 pm CDT Apr 15, 2026
Forecast Valid:
7pm CDT Apr 15, 2026-6pm CDT Apr 22, 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