Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Overcast

69°F

21°C

Humidity 97%
Wind Speed Calm
Barometer 30.11 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 24 Jul 9:35 pm CDT
Extended Forecast for

Zeigler IL

Heat Advisory July 26, 11:00am until July 28, 07:00pm
Click here for hazard details and duration
Heat Advisory
  • Tonight

    Tonight: A chance of showers, with thunderstorms also possible after 4am.  Mostly cloudy, with a low around 67. Calm wind.  Chance of precipitation is 50%.

    Low: 67 °F

    Chance
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms, mainly before 1pm.  Cloudy, then gradually becoming mostly sunny, with a high near 86. Calm wind becoming south around 6 mph.

    High: 86 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Patchy fog after 4am.  Otherwise, partly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Partly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Mostly sunny, with a high near 94. Heat index values as high as 105. Calm wind.

    High: 94 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74. Light south wind.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny and hot, with a high near 98. Southwest wind 5 to 10 mph.

    High: 98 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 79. South southwest wind 7 to 10 mph.

    Low: 79 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 97. West wind 6 to 10 mph becoming north northwest in the afternoon.

    High: 97 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 74. North wind 5 to 7 mph becoming calm  in the evening.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 50%.
Saturday
A 50 percent chance of showers and thunderstorms, mainly before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 86. Calm wind becoming south around 6 mph.
Saturday Night
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 71. Calm wind.
Sunday
Mostly sunny, with a high near 94. Heat index values as high as 105. Calm wind.
Sunday Night
Mostly clear, with a low around 74. Light south wind.
Monday
Mostly sunny and hot, with a high near 98. Southwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 79. South southwest wind 7 to 10 mph.
Tuesday
Sunny and hot, with a high near 97. West wind 6 to 10 mph becoming north northwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 74. North wind 5 to 7 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 94. Calm wind becoming north 5 to 8 mph in the morning.
Wednesday Night
Mostly clear, with a low around 71. North northeast wind around 6 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 93. Calm wind becoming east southeast around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 72. East wind around 5 mph becoming calm in the evening.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 92. Calm wind becoming south 5 to 7 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
Zeigler IL
 37.92°N 89.05°W
8:25 pm CDT Jul 24, 2026
9pm CDT Jul 24, 2026-6pm CDT Jul 31, 2026
 
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