Heavy Rainfall Threat for Portions of Mid-Atlantic and Northeast; Heat Linger for Southeast and Expands for the West

Moisture and nearby frontal boundary will focus more showers and thunderstorms for portions of the Mid-Atlantic and Northeast today. Rainfall could be locally heavy resulting instances of flash flooding. Meanwhile, the heat lingers for areas of the Southeast and expands across the Western U.S. the next several days. Between these areas, severe thunderstorms possible for the Plains and Midwest. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Mostly Cloudy

75°F

24°C

Humidity	89%
Wind Speed	Calm
Barometer	30.01 in
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Last update	6 Jul 8:45 am CDT

More Information:

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

Extended Forecast for

4 Miles ENE Vienna IL

Today
High: 86 °F
Chance
Showers then
Chance
T-storms
Tonight
Low: 69 °F
Chance
Showers then
Partly Cloudy
Tuesday
High: 86 °F
Chance
T-storms
Tuesday Night
Low: 69 °F
Slight Chance
T-storms then
Slight Chance
Showers
Wednesday
High: 88 °F
Mostly Sunny
then Chance
T-storms
Wednesday Night
Low: 71 °F
Mostly Clear
Thursday
High: 90 °F
Sunny then
Chance
T-storms
Thursday Night
Low: 74 °F
Chance
T-storms
Friday
High: 89 °F
Chance
T-storms

Detailed Forecast

Today

A 40 percent chance of showers and thunderstorms, mainly after 11am. Mostly sunny, with a high near 86. Calm wind becoming north northwest around 5 mph in the afternoon.

Tonight

A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 69. Calm wind.

Tuesday

A 40 percent chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 86. Light north wind.

Tuesday Night

A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 69. Calm wind. Chance of precipitation is 20%.

Wednesday

A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Light and variable wind.

Wednesday Night

Mostly clear, with a low around 71. Calm wind.

Thursday

A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 90. Calm wind becoming south southwest 5 to 9 mph in the morning.

Thursday Night

A chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 74. South southwest wind around 6 mph.

Friday

A chance of showers and thunderstorms. Partly sunny, with a high near 89. Southwest wind 5 to 9 mph.

Friday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 72. South southwest wind around 6 mph becoming calm in the evening.