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.

Mostly Cloudy

81°F

27°C

Humidity 45%
Wind Speed S 14 mph
Barometer 29.88 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 15 May 4:45 pm CDT
Extended Forecast for

Goreville IL

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 68. South wind 10 to 13 mph, with gusts as high as 22 mph.

    Low: 68 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 85. South southwest wind 10 to 13 mph, with gusts as high as 22 mph.

    High: 85 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, then gradually becoming clear, with a low around 66. South wind around 9 mph.

    Low: 66 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 88. South wind 8 to 15 mph, with gusts as high as 26 mph.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 69. South wind around 14 mph, with gusts as high as 23 mph.

    Low: 69 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. South wind 13 to 17 mph, with gusts as high as 29 mph.

    High: 88 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. South wind 14 to 16 mph, with gusts as high as 26 mph.

    Low: 71 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 82. South southwest wind 13 to 15 mph, with gusts as high as 25 mph.

    High: 82 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. South southwest wind 5 to 9 mph becoming north northwest after midnight.

    Low: 64 °F

    Showers
    Likely

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 68. South wind 10 to 13 mph, with gusts as high as 22 mph.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 85. South southwest wind 10 to 13 mph, with gusts as high as 22 mph.
Saturday Night
A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, then gradually becoming clear, with a low around 66. South wind around 9 mph.
Sunday
Sunny, with a high near 88. South wind 8 to 15 mph, with gusts as high as 26 mph.
Sunday Night
Mostly clear, with a low around 69. South wind around 14 mph, with gusts as high as 23 mph.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. South wind 13 to 17 mph, with gusts as high as 29 mph.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. South wind 14 to 16 mph, with gusts as high as 26 mph.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 82. South southwest wind 13 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. South southwest wind 5 to 9 mph becoming north northwest after midnight.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 74. North wind around 9 mph.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 57. North wind 6 to 8 mph.
Thursday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 75. Northeast wind around 8 mph.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 57. Northeast wind 3 to 6 mph.
Friday
A slight chance of showers. Mostly sunny, with a high near 80. East wind 5 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Goreville IL
 37.58°N 88.96°W
Last Update:
5:21 pm CDT May 15, 2026
Forecast Valid:
5pm CDT May 15, 2026-6pm CDT May 22, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation