Heavy Rainfall and Severe Thunderstorms in the Midwest and Ohio Valley Tuesday

Multiple rounds of severe thunderstorms appear likely Tuesday across the Midwest and Ohio Valley, with severe wind gusts in excess of 75 mph as the primary threat. Heavy to excessive rainfall may lead to considerable flash and urban flooding impacts Tuesday across portions of the Ohio Valley. A Moderate Risk (level 3 of 4) of excessive rainfall has been issued. Read More >

Hazardous Weather Conditions

Heat Advisory until August 12, 08:00 PM CDT

Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

85°F

29°C

Humidity	75%
Wind Speed	S 5 mph
Barometer	29.95 in (1013.5 mb)
Dewpoint	76°F (24°C)
Visibility	10.00 mi
Heat Index	95°F (35°C)
Last update	10 Aug 8:54 pm CDT

More Information:

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

Extended Forecast for

Carrollton IL

Heat Advisory August 10, 09:50pm until August 12, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory August 10, 09:50pm until August 12, 08:00pm
NOW until 8:00pm Wed
Heat Advisory
Tonight
Low: 75 °F
Partly Cloudy
Tuesday
High: 94 °F
Sunny
Tuesday Night
Low: 74 °F
Isolated
T-storms
Wednesday
High: 91 °F
Chance
T-storms
Wednesday Night
Low: 72 °F
Partly Cloudy
then Chance
T-storms
Thursday
High: 90 °F
Chance
T-storms
Thursday Night
Low: 70 °F
Chance
T-storms
Friday
High: 88 °F
Slight Chance
T-storms

Detailed Forecast

Tonight

Partly cloudy, with a low around 75. South wind 5 to 7 mph.

Tuesday

Sunny, with a high near 94. Heat index values as high as 106. Southwest wind 7 to 9 mph.

Tuesday Night

Isolated showers and thunderstorms between 9pm and 1am. Partly cloudy, with a low around 74. Light and variable wind becoming southwest around 6 mph in the evening. Chance of precipitation is 20%.

Wednesday

A 30 percent chance of showers and thunderstorms, mainly between 7am and 1pm. Mostly sunny, with a high near 91. Southwest wind 6 to 8 mph.

Wednesday Night

A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. Light and variable wind becoming southeast around 5 mph after midnight.

Thursday

A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 90.

Thursday Night

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.

Friday

A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 88.

Friday Night

A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71.

Saturday

Mostly sunny, with a high near 92.

Saturday Night

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.