Dangerous Heat and Possible Flooding This Week

Hot temperatures and high humidity are forecast to continue across much of east Texas into the mid-Mississippi Valley through this week. Heavy to excessive rainfall occurring at times through Friday could bring areas of flooding across parts of the central Plains into the upper Midwest and Four Corners states. Read More >

Hazardous Weather Conditions

Heat Advisory in effect from September 15, 11:00 AM CDT until September 15, 07:00 PM CDT

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

80°F

27°C

Humidity	71%
Wind Speed	S 6 mph
Barometer	30.07 in (1017.8 mb)
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Heat Index	83°F (28°C)
Last update	15 Sep 8:53 am CDT

More Information:

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

Extended Forecast for

2 Miles E Fairview Heights IL

Heat Advisory September 15, 11:00am until September 15, 07:00pm

Click here for hazard details and duration

Heat Advisory

Today
High: 99 °F
Sunny then
Isolated
T-storms
Tonight
Low: 74 °F
T-storms
Likely then
Chance
T-storms
Wednesday
High: 96 °F
Chance
T-storms then
Partly Sunny
Wednesday Night
Low: 75 °F
Partly Cloudy
Thursday
High: 97 °F
Hot
Thursday Night
Low: 73 °F
Mostly Clear
Friday
High: 94 °F
Sunny
Friday Night
Low: 73 °F
Mostly Clear
Saturday
High: 94 °F
Mostly Sunny

Detailed Forecast

Today

Isolated showers and thunderstorms after 4pm. Sunny and hot, with a high near 99. Heat index values as high as 106. South wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Tonight

Showers and thunderstorms likely, mainly before 4am. Mostly cloudy, with a low around 74. Southeast wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 60%.

Wednesday

A 30 percent chance of showers and thunderstorms, mainly before 9am. Partly sunny, with a high near 96. Heat index values as high as 105. Light and variable wind becoming south 5 to 7 mph in the morning.

Wednesday Night

Partly cloudy, with a low around 75. South wind 3 to 5 mph.

Thursday

Sunny and hot, with a high near 97. Southwest wind 5 to 7 mph becoming northwest in the afternoon.

Thursday Night

Mostly clear, with a low around 73.

Friday

Sunny, with a high near 94.

Friday Night

Mostly clear, with a low around 73.

Saturday

Mostly sunny, with a high near 94.