Areas of Thunderstorms and Heavy Rain Across the Country; Heat Wave Begins This Weekend

Widespread showers and thunderstorms, some severe, may bring heavy rain and flash flooding in the central Gulf Coast, Mid-Atlantic, the Upper Midwest, the Great Basin and Southwest. A stretch of unusually hot and humid weather is expected across portions of the central U.S. and the Southeast beginning this weekend. Critical fire weather conditions are expected in the Northwest and Great Basin. 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

74°F

23°C

Humidity	96%
Wind Speed	N 5 mph
Barometer	30.03 in
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Last update	17 Jul 8:55 pm CDT

More Information:

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

Extended Forecast for

Vienna IL

Tonight
Low: 74 °F
Scattered
T-storms and
Patchy Fog
Friday
High: 90 °F
Scattered
T-storms and
Patchy Fog
Friday Night
Low: 74 °F
Chance
T-storms
Saturday
High: 89 °F
Chance
T-storms
Saturday Night
Low: 76 °F
Mostly Clear
Sunday
High: 93 °F
Chance
T-storms
Sunday Night
Low: 76 °F
Slight Chance
T-storms
Monday
High: 93 °F
Chance
T-storms
Monday Night
Low: 76 °F
Partly Cloudy

Detailed Forecast

Tonight

Scattered showers and thunderstorms. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 74. Calm wind. Chance of precipitation is 50%.

Friday

Scattered showers and thunderstorms. Patchy fog before 8am. Otherwise, partly sunny, with a high near 90. Light and variable wind. Chance of precipitation is 50%.

Friday Night

A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 74. Calm wind.

Saturday

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. Southwest wind 3 to 7 mph.

Saturday Night

Mostly clear, with a low around 76. Light south southwest wind.

Sunday

A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93. Southwest wind 3 to 5 mph.

Sunday Night

A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 76. Calm wind.

Monday

A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93. Calm wind becoming southwest around 6 mph in the morning.