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

66°F

19°C

Humidity 64%
Wind Speed S 12 mph
Barometer 29.68 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 18 Feb 4:45 pm CST
Extended Forecast for

6 Miles WNW Goreville IL

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, increasing clouds, with a low around 54. South southwest wind around 8 mph, with gusts as high as 18 mph.

    Low: 54 °F

    Partly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly before 3pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 69. South wind 7 to 17 mph, with gusts as high as 34 mph. Chance of precipitation is 70%.

    High: 69 °F

    Chance
    Showers and
    Patchy Fog
    then Showers
    Likely

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42. West southwest wind 10 to 15 mph, with gusts as high as 28 mph.

    Low: 42 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 55. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 55 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 35. North wind 3 to 6 mph.

    Low: 35 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 47. North northwest wind 6 to 8 mph.

    High: 47 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A slight chance of rain and snow showers before midnight. Mostly clear, with a low around 26. Northwest wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 26 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 41. Northwest wind 11 to 14 mph, with gusts as high as 25 mph.

    High: 41 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 21. North northwest wind around 11 mph, with gusts as high as 20 mph.

    Low: 21 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, increasing clouds, with a low around 54. South southwest wind around 8 mph, with gusts as high as 18 mph.
Thursday
Showers and thunderstorms likely, mainly before 3pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 69. South wind 7 to 17 mph, with gusts as high as 34 mph. Chance of precipitation is 70%.
Thursday Night
Partly cloudy, with a low around 42. West southwest wind 10 to 15 mph, with gusts as high as 28 mph.
Friday
Sunny, with a high near 55. West wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 35. North wind 3 to 6 mph.
Saturday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 47. North northwest wind 6 to 8 mph.
Saturday Night
A slight chance of rain and snow showers before midnight. Mostly clear, with a low around 26. Northwest wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 41. Northwest wind 11 to 14 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 21. North northwest wind around 11 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 38. North northwest wind 6 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 21. North northwest wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 46. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 37. South southwest wind 10 to 14 mph, with gusts as high as 23 mph.
Wednesday
A chance of showers. Mostly cloudy, with a high near 56. Southwest wind 11 to 15 mph, with gusts as high as 26 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WNW Goreville IL
 37.58°N 89.07°W
Last Update:
3:22 pm CST Feb 18, 2026
Forecast Valid:
5pm CST Feb 18, 2026-6pm CST Feb 25, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation