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.

Mostly Cloudy

86°F

30°C

Humidity 62%
Wind Speed N 15 G 22 mph
Barometer 30.09 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 12 Jul 2:45 pm CDT
Extended Forecast for

3 Miles NNE Vienna IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 84. North northeast wind around 8 mph.

    High: 84 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 68. North northeast wind around 5 mph becoming calm in the evening.

    Low: 68 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 86. Light north northeast wind increasing to 5 to 9 mph in the morning.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 69. North northeast wind around 5 mph becoming calm in the evening.

    Low: 69 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Calm wind becoming east northeast 5 to 7 mph in the morning.

    High: 87 °F

    Sunny then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of thunderstorms before 7pm. Mostly clear, with a low around 70. Calm wind. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. Light and variable wind.

    High: 89 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. Calm wind.

    High: 89 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 84. North northeast wind around 8 mph.
Tonight
Mostly clear, with a low around 68. North northeast wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 86. Light north northeast wind increasing to 5 to 9 mph in the morning.
Monday Night
Mostly clear, with a low around 69. North northeast wind around 5 mph becoming calm in the evening.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Calm wind becoming east northeast 5 to 7 mph in the morning.
Tuesday Night
A chance of thunderstorms before 7pm. Mostly clear, with a low around 70. Calm wind. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. Light and variable wind.
Wednesday Night
Partly cloudy, with a low around 71. Calm wind.
Thursday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. Calm wind.
Thursday Night
Mostly clear, with a low around 72. Calm wind.
Friday
Sunny, with a high near 91. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 72. Calm wind.
Saturday
Mostly sunny, with a high near 91. Calm wind becoming west southwest around 6 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Vienna IL
 37.44°N 88.88°W
Last Update:
1:26 pm CDT Jul 12, 2026
Forecast Valid:
3pm CDT Jul 12, 2026-6pm CDT Jul 18, 2026
 
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Additional Resources

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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