Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Partly Cloudy

79°F

26°C

Humidity 79%
Wind Speed S 8 mph
Barometer 29.88 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 21 Jun 9:45 am CDT
Extended Forecast for

3 Miles W Vienna IL

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 5pm.  Partly sunny, with a high near 88. South wind 6 to 13 mph, with gusts as high as 24 mph.

    High: 88 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 3am, then showers likely and possibly a thunderstorm after 4am.  Low around 70. South wind 7 to 10 mph, with gusts as high as 21 mph.  Chance of precipitation is 90%.

    Low: 70 °F

    T-storms

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms, mainly between 1pm and 3pm.  Mostly cloudy, with a high near 81. West wind 6 to 8 mph becoming north northwest in the afternoon.

    High: 81 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 63. North wind around 6 mph becoming calm  in the evening.

    Low: 63 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 83. Light north northeast wind.

    High: 83 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 85. Calm wind.

    High: 85 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms.  Partly cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly after 1pm.  Mostly sunny, with a high near 85. Calm wind becoming west around 5 mph.

    High: 85 °F

    Chance
    T-storms

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 88. South wind 6 to 13 mph, with gusts as high as 24 mph.
Tonight
Showers and thunderstorms, mainly before 3am, then showers likely and possibly a thunderstorm after 4am. Low around 70. South wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 90%.
Monday
A 50 percent chance of showers and thunderstorms, mainly between 1pm and 3pm. Mostly cloudy, with a high near 81. West wind 6 to 8 mph becoming north northwest in the afternoon.
Monday Night
Partly cloudy, with a low around 63. North wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 83. Light north northeast wind.
Tuesday Night
Mostly clear, with a low around 63. Calm wind.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. Calm wind.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 66. Calm wind.
Thursday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 85. Calm wind becoming west around 5 mph.
Thursday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 65. Calm wind.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Light and variable wind.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69. Light and variable wind.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 87. Light south wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Vienna IL
 37.4°N 88.97°W
8:51 am CDT Jun 21, 2026
10am CDT Jun 21, 2026-6pm CDT Jun 27, 2026
 
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Additional Resources

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