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

72°F

22°C

Humidity 96%
Wind Speed Calm
Barometer 30.11 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 16 Aug 5:15 am CDT
Extended Forecast for

Mulkeytown 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 98. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 98 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 74. South southeast wind around 5 mph becoming calm in the evening.

    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. 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 southeast 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 morning.

    High: 101 °F

    Hot

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 73. East 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 6 to 11 mph.

    High: 91 °F

    Chance
    T-storms

Detailed Forecast

Today
Sunny and hot, with a high near 98. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 74. South southeast wind around 5 mph becoming calm in the evening.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 101. 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 southeast 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 morning.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 73. East 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 6 to 11 mph.
Wednesday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 68. North wind 5 to 10 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.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mulkeytown IL
 37.96°N 89.1°W
Last Update:
5:16 am CDT Aug 16, 2025
Forecast Valid:
5am CDT Aug 16, 2025-6pm CDT Aug 22, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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