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Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Partly Cloudy

95°F

35°C

Humidity	47%
Wind Speed	Calm
Barometer	30.08 in
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Heat Index	103°F (39°C)
Last update	16 Aug 2:45 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Vienna IL

Heat Advisory August 16, 03:40pm until August 19, 07:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory August 16, 03:40pm until August 19, 07:00pm
NOW until 7:00pm Tue
Heat Advisory
This Afternoon
High: 97 °F
Hot
Tonight
Low: 74 °F
Mostly Clear
Sunday
High: 97 °F
Sunny then
Slight Chance
T-storms
Sunday Night
Low: 75 °F
Slight Chance
T-storms then
Mostly Clear
Monday
High: 97 °F
Hot
Monday Night
Low: 75 °F
Mostly Clear
Tuesday
High: 98 °F
Hot
Tuesday Night
Low: 73 °F
Chance
T-storms

Detailed Forecast

This Afternoon

Mostly sunny and hot, with a high near 97. Heat index values as high as 105. Light south wind.

Tonight

Mostly clear, with a low around 74. Calm wind.

Sunday

A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 108. Light and variable wind.

Sunday Night

A 20 percent chance of showers and thunderstorms before 10pm. Mostly clear, with a low around 75. Calm wind.

Monday

Sunny and hot, with a high near 97. Calm wind.

Monday Night

Mostly clear, with a low around 75. Calm wind.

Tuesday

Sunny and hot, with a high near 98. Calm wind.

Tuesday Night

A chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 73. Calm wind.

Wednesday

A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 92. Calm wind becoming north around 6 mph in the afternoon.