Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Partly Cloudy

82°F

28°C

Humidity 74%
Wind Speed S 17 mph
Barometer 29.76 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 21 Jun 3:45 pm CDT
Extended Forecast for

3 Miles WNW Whiteash IL

Tornado Watch until June 21, 09:00pm
Lake Wind Advisory until June 21, 07:00pm
Click here for hazard details and duration
Tornado Watch
Lake Wind Advisory
  •  
    Tornado Watch until June 21, 09:00pm
    Lake Wind Advisory until June 21, 07:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 89 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 4am, then a chance of showers and thunderstorms after 4am. Some of the storms could produce heavy rainfall.  Low around 70. South southwest wind 8 to 15 mph, with gusts as high as 24 mph.  Chance of precipitation is 90%.

    Low: 70 °F

    Heavy Rain

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly before 11am.  Cloudy, then gradually becoming mostly sunny, with a high near 80. Northwest wind 8 to 10 mph.

    High: 80 °F

    Chance
    T-storms then
    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 62. North wind 5 to 9 mph becoming calm  in the evening.

    Low: 62 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 84. Light northeast wind.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64. Light north wind.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 86. Light south wind.

    High: 86 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms, then a chance of showers after 1am.  Mostly cloudy, with a low around 69. Calm wind.

    Low: 69 °F

    Slight Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. South wind around 17 mph, with gusts as high as 25 mph.
Tonight
Showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 4am, then a chance of showers and thunderstorms after 4am. Some of the storms could produce heavy rainfall. Low around 70. South southwest wind 8 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.
Monday
A 30 percent chance of showers and thunderstorms, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 80. Northwest wind 8 to 10 mph.
Monday Night
Partly cloudy, with a low around 62. North wind 5 to 9 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 84. Light northeast wind.
Tuesday Night
Mostly clear, with a low around 64. Light north wind.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Light south wind.
Wednesday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Mostly cloudy, with a low around 69. Calm wind.
Thursday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 89. Calm wind becoming west southwest around 5 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 67. Light and variable wind.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Calm wind becoming south southwest around 5 mph in the afternoon.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Light south wind.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 90. Southwest wind 5 to 10 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Whiteash IL
 37.8°N 88.97°W
3:01 pm CDT Jun 21, 2026
3pm CDT Jun 21, 2026-6pm CDT Jun 27, 2026
 
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Additional Resources

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