St. Louis Faces ‘First Alert Weather Days’ Amid Intense Heatwave
St. Louis is experiencing "First Alert Weather Days" due to intense heat and humidity that will continue through Sunday. "Feels-like" temperatures are expected to reach up to 107° in Downtown STL and potentially 111° in some southeastern areas today. Isolated…
St. Louis, MO, August 13, 2026 —
St. Louis is currently under “First Alert Weather Days” as a significant heatwave grips the region, bringing intense heat and humidity that is expected to persist through Sunday.
Residents are advised to take precautions as “feels-like” temperatures are projected to reach critical levels. In Downtown St. Louis, the heat index is anticipated to climb as high as 107 degrees Fahrenheit today. In some southeastern areas of the region, these “feels-like” temperatures could potentially reach up to 111 degrees Fahrenheit.
Alongside the extreme heat, there is a possibility of isolated afternoon thunderstorms. While most of these storms are expected to be mild, there is a minor risk of strong winds accompanying them.
The forecast indicates that the high temperatures will continue throughout the weekend. Relief from the heat is not expected until early next week, when a cold front is anticipated to move into the area.
Further details regarding specific safety recommendations or advisories for the “First Alert Weather Days” were not provided in the summary.
Story summarized from the original created by Chance Gotsch on www.firstalert4.com, see more information here.
