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Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

90°F

32°C

Humidity	59%
Wind Speed	SW 9 mph
Barometer	30.02 in
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	99°F (37°C)
Last update	19 Aug 9:45 am CDT

More Information:

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

Extended Forecast for

3 Miles SW Simpson IL

Heat Advisory August 19, 10:32am until August 19, 07:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory August 19, 10:32am until August 19, 07:00pm
NOW until 7:00pm Tue
Heat Advisory
Today
High: 97 °F
Sunny then
Chance
T-storms
Tonight
Low: 72 °F
Chance
T-storms then
Chance
Showers
Wednesday
High: 88 °F
Slight Chance
T-storms
Wednesday Night
Low: 67 °F
Partly Cloudy
Thursday
High: 87 °F
Mostly Sunny
Thursday Night
Low: 66 °F
Mostly Clear
Friday
High: 90 °F
Sunny
Friday Night
Low: 66 °F
Clear

Detailed Forecast

Today

A 30 percent chance of showers and thunderstorms, mainly after 4pm. Increasing clouds and hot, with a high near 97. Heat index values as high as 105. Calm wind becoming west southwest around 5 mph.

Tonight

A 50 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 72. Light and variable wind.

Wednesday

A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88. North wind 3 to 8 mph.

Wednesday Night

Partly cloudy, with a low around 67. North northeast wind around 6 mph becoming calm in the evening.

Thursday

Mostly sunny, with a high near 87. North northeast wind 5 to 7 mph.

Thursday Night

Mostly clear, with a low around 66. North northeast wind around 6 mph becoming calm in the evening.

Friday

Sunny, with a high near 90. Calm wind becoming north northeast around 5 mph in the afternoon.