Thunderstorms and Heavy Rains Across Portions of the Central and Eastern US; Heat Expands to Portions of the East

Widespread showers and thunderstorms, some severe, may produce heavy downpours and flash flooding across much of the eastern and central U.S. Dangerous heat will continue in the Pacific Northwest and expand across portions of the East. Deep tropical moisture and associated thunderstorms will bring heavy rainfall and localized flash flooding across portions of Florida into the central Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Overcast

74°F

23°C

Humidity	95%
Wind Speed	S 7 mph
Barometer	29.96 in
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Last update	16 Jul 2:15 am CDT

More Information:

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

Extended Forecast for

2 Miles SSW Goreville IL

Heat Advisory July 16, 12:00pm until July 16, 07:00pm

Click here for hazard details and duration

Heat Advisory

Overnight
Low: 73 °F
Isolated
T-storms
Wednesday
High: 91 °F
Scattered
T-storms
Wednesday Night
Low: 75 °F
Mostly Clear
Thursday
High: 93 °F
Scattered
T-storms
Thursday Night
Low: 74 °F
Scattered
T-storms
Friday
High: 88 °F
Scattered
T-storms then
T-storms
Likely
Friday Night
Low: 75 °F
Isolated
T-storms
Saturday
High: 90 °F
Scattered
T-storms
Saturday Night
Low: 75 °F
Partly Cloudy
then Isolated
T-storms

Detailed Forecast

Overnight

Isolated showers and thunderstorms. Mostly cloudy, with a low around 73. Light south southwest wind. Chance of precipitation is 20%.

Wednesday

Isolated showers, then scattered showers and thunderstorms after 10am. Mostly sunny, with a high near 91. Heat index values as high as 105. Southwest wind 3 to 7 mph. Chance of precipitation is 30%.

Wednesday Night

Mostly clear, with a low around 75. Southwest wind around 6 mph becoming calm in the evening.

Thursday

Isolated showers, then scattered showers and thunderstorms after 10am. Mostly sunny, with a high near 93. Heat index values as high as 106. Southwest wind 3 to 6 mph. Chance of precipitation is 40%.

Thursday Night

Scattered showers and thunderstorms. Mostly cloudy, with a low around 74. Light and variable wind. Chance of precipitation is 40%.

Friday

Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 88. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 60%.

Friday Night

Isolated showers and thunderstorms. Mostly cloudy, with a low around 75. Calm wind. Chance of precipitation is 20%.

Saturday

Scattered showers and thunderstorms. Mostly sunny, with a high near 90. South southwest wind 3 to 6 mph.

Saturday Night

Isolated showers and thunderstorms after 1am. Partly cloudy, with a low around 75. South southwest wind 3 to 5 mph.

Sunday

Scattered showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 91. South southwest wind 3 to 5 mph.

Sunday Night

Scattered showers and thunderstorms. Partly cloudy, with a low around 75. South wind 3 to 5 mph.

Monday

Scattered showers and thunderstorms. Mostly sunny, with a high near 92. South southwest wind 3 to 7 mph.