Heavy Rain From the Central Plains to the Mid-Atlantic; Heat Wave Begins This Weekend

Strong to severe thunderstorms and heavy rain will impact portions of the central Plains into the Upper Midwest and the Mid-Atlantic through the weekend. A stretch of unusually hot and humid weather is expected across portions of the central U.S. and the Southeast beginning this weekend and continuing through next week. The heat may reach dangerous levels, particularly mid to late next week. Read More >

Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Overcast

79°F

26°C

Humidity	89%
Wind Speed	SW 7 mph
Barometer	30.03 in
Dewpoint	75°F (24°C)
Visibility	10.00 mi
Heat Index	83°F (28°C)
Last update	19 Jul 7:45 am CDT

More Information:

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

Extended Forecast for

Marion IL

Heat Advisory July 19, 12:00pm until July 19, 07:00pm

Click here for hazard details and duration

Heat Advisory

Today
High: 92 °F
Chance
T-storms then
T-storms
Likely
Tonight
Low: 77 °F
Chance
T-storms then
Mostly Clear
Sunday
High: 95 °F
Mostly Sunny
then Slight
Chance
T-storms
Sunday Night
Low: 77 °F
Slight Chance
T-storms
Monday
High: 92 °F
Mostly Sunny
then Chance
T-storms
Monday Night
Low: 76 °F
Slight Chance
T-storms
Tuesday
High: 93 °F
Sunny then
Slight Chance
T-storms
Tuesday Night
Low: 76 °F
Mostly Clear
Wednesday
High: 95 °F
Sunny

Detailed Forecast

Today

Showers and thunderstorms likely, mainly after 5pm. Mostly sunny, with a high near 92. Heat index values as high as 106. West southwest wind 5 to 8 mph. Chance of precipitation is 60%.

Tonight

A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly clear, with a low around 77. South wind around 6 mph.

Sunday

A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95. Heat index values as high as 106. West southwest wind 6 to 8 mph.

Sunday Night

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77. South southwest wind 3 to 6 mph.

Monday

A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. West wind 3 to 6 mph.

Monday Night

A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 76. Light southeast wind.

Tuesday

A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Calm wind becoming south southeast around 5 mph in the afternoon.

Tuesday Night

Mostly clear, with a low around 76. Light southeast wind.

Wednesday

Sunny, with a high near 95. Calm wind becoming south southwest around 6 mph in the afternoon.

Wednesday Night

Mostly clear, with a low around 77. Light south wind.

Thursday

Sunny, with a high near 96. South southwest wind 3 to 7 mph.

Thursday Night

Mostly clear, with a low around 77. South wind around 5 mph becoming calm in the evening.

Friday

A slight chance of showers and thunderstorms. Sunny, with a high near 95. Southwest wind 3 to 7 mph.