Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

88°F

31°C

Humidity 62%
Wind Speed SW 7 mph
Barometer 30.11 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 16 Aug 9:45 am CDT
Extended Forecast for

2 Miles N Royalton IL

Heat Advisory August 16, 12:00pm until August 19, 07:00pm
Click here for hazard details and duration
Heat Advisory
  • Today

    Today: Sunny and hot, with a high near 97. Calm wind becoming south around 5 mph in the afternoon.

    High: 97 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 74. Light south southeast wind.

    Low: 74 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 2pm.  Sunny and hot, with a high near 101. Heat index values as high as 105. Light and variable wind.

    High: 101 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 76. Light and variable wind.

    Low: 76 °F

    Partly Cloudy

  • Monday

    Monday: Sunny and hot, with a high near 101. Calm wind becoming south around 5 mph in the afternoon.

    High: 101 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. East wind around 5 mph becoming calm  in the evening.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 101. Calm wind becoming west around 6 mph in the afternoon.

    High: 101 °F

    Hot

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 73. East northeast wind around 6 mph becoming calm  in the evening.

    Low: 73 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, mainly after 1pm.  Mostly sunny, with a high near 91. North wind 5 to 10 mph.

    High: 91 °F

    Chance
    T-storms

Detailed Forecast

Today
Sunny and hot, with a high near 97. Calm wind becoming south around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 74. Light south southeast wind.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 101. Heat index values as high as 105. Light and variable wind.
Sunday Night
Partly cloudy, with a low around 76. Light and variable wind.
Monday
Sunny and hot, with a high near 101. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 75. East wind around 5 mph becoming calm in the evening.
Tuesday
Sunny and hot, with a high near 101. Calm wind becoming west around 6 mph in the afternoon.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 73. East northeast wind around 6 mph becoming calm in the evening.
Wednesday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91. North wind 5 to 10 mph.
Wednesday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 69. North wind 5 to 9 mph.
Thursday
Mostly sunny, with a high near 87. North northeast wind 6 to 10 mph.
Thursday Night
Mostly clear, with a low around 67. Northeast wind 5 to 8 mph becoming calm in the evening.
Friday
Sunny, with a high near 90. North northeast wind 3 to 7 mph.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Royalton IL
 37.9°N 89.11°W
10:16 am CDT Aug 16, 2025
10am CDT Aug 16, 2025-6pm CDT Aug 22, 2025
 
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Additional Resources

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