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 until September 18, 08:00 PM CDT

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy

93°F

34°C

Humidity	50%
Wind Speed	SW 12 mph
Barometer	30.08 in (1017.3 mb)
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Heat Index	101°F (38°C)
Last update	15 Sep 11:51 am CDT

More Information:

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

Extended Forecast for

Pasadena Hills MO

Heat Advisory September 15, 12:49pm until September 18, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory September 15, 12:49pm until September 18, 08:00pm
NOW until 8:00pm Fri
Heat Advisory
This Afternoon
High: 99 °F
Slight Chance
T-storms
Tonight
Low: 76 °F
Scattered
T-storms
Wednesday
High: 94 °F
Scattered
T-storms
Wednesday Night
Low: 79 °F
Isolated
T-storms then
Mostly Clear
Thursday
High: 97 °F
Hot
Thursday Night
Low: 75 °F
Mostly Clear
Friday
High: 95 °F
Sunny
Friday Night
Low: 75 °F
Mostly Clear

Detailed Forecast

This Afternoon

A 20 percent chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 99. Heat index values as high as 103. South wind around 7 mph.

Tonight

Scattered showers and thunderstorms, mainly after 7pm. Partly cloudy, with a low around 76. East wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 40%.

Wednesday

Scattered showers and thunderstorms, mainly before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 94. Heat index values as high as 102. Calm wind becoming southeast around 5 mph. Chance of precipitation is 30%.

Wednesday Night

Isolated showers and thunderstorms before 8pm. Mostly clear, with a low around 79. South wind 3 to 5 mph. Chance of precipitation is 20%.

Thursday

Sunny and hot, with a high near 97. West wind around 6 mph becoming light and variable in the afternoon.

Thursday Night

Mostly clear, with a low around 75.

Friday

Sunny, with a high near 95.

Friday Night

Mostly clear, with a low around 75.

Saturday

Mostly sunny, with a high near 94.