Today: High 95. Hot with oppressive humidity. Heat index from 100 to 105.
Excessive Heat Warning for most of the St. Louis area from 1 PM Wednesday to 8 PM Saturday. Heat index readings will range from 105 to 113. A Heat Advisory is in effect for Iron and Reynolds Counties in Missouri for slightly lower heat index readings from 100 to 107.
Storm threat today. Spot storms will be possible late in the afternoon through the evening. If a few storms can get going, they may pose a damaging wind and hail threat. Timing is likely after 5 PM through 10 PM.
Tonight: 80. Partly cloudy warm and muggy.