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 Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

A Few Clouds

82°F

28°C

Humidity	67%
Wind Speed	SW 10 mph
Barometer	30.07 in (1016.8 mb)
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Heat Index	86°F (30°C)
Last update	15 Sep 8:51 am CDT

More Information:

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

Extended Forecast for

2 Miles SSW Brooklyn IL

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

Click here for hazard details and duration

Heat Advisory

Today
High: 100 °F
Sunny then
Isolated
T-storms
Tonight
Low: 75 °F
T-storms
Likely
Wednesday
High: 97 °F
Chance
T-storms then
Partly Sunny
Wednesday Night
Low: 77 °F
Partly Cloudy
Thursday
High: 98 °F
Hot
Thursday Night
Low: 75 °F
Partly Cloudy
Friday
High: 95 °F
Sunny
Friday Night
Low: 74 °F
Mostly Clear
Saturday
High: 95 °F
Mostly Sunny

Detailed Forecast

Today

Isolated showers and thunderstorms after 4pm. Sunny and hot, with a high near 100. Heat index values as high as 107. South wind 7 to 10 mph. Chance of precipitation is 20%.

Tonight

Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 75. Southeast wind 5 to 7 mph becoming light and variable after midnight. Chance of precipitation is 60%.

Wednesday

A 30 percent chance of showers and thunderstorms, mainly before 7am. Partly sunny and hot, with a high near 97. Heat index values as high as 106. Light and variable wind becoming south around 6 mph in the afternoon.

Wednesday Night

Partly cloudy, with a low around 77. South wind 3 to 5 mph.

Thursday

Sunny and hot, with a high near 98. Light and variable wind becoming southwest around 5 mph.

Thursday Night

Partly cloudy, with a low around 75.

Friday

Sunny, with a high near 95.

Friday Night

Mostly clear, with a low around 74.

Saturday

Mostly sunny, with a high near 95.