St. Louis Braces for Showers, Then a Dangerous Heatwave
St. Louis is expected to experience scattered showers and thunderstorms through Saturday morning. Following this, a dangerous heatwave is predicted from Sunday through Tuesday, with heat index values reaching 105°-110°, and Monday potentially being the warmest day of the year.
St. Louis, MO, July 25, 2026 —
St. Louis residents can anticipate a shift in weather patterns this weekend, beginning with scattered showers and thunderstorms that are expected to persist through Saturday morning.
Following the weekend’s precipitation, the region is forecast to be impacted by a dangerous heatwave. This period of high temperatures is projected to last from Sunday through Tuesday. During this time, heat index values, which combine temperature and humidity, are expected to reach between 105° and 110° Fahrenheit.
Meteorologists indicate that Monday has the potential to be the warmest day of the year thus far. Authorities are advising residents to take precautions during the anticipated heatwave due to the elevated risk of heat-related illnesses.
Specific details regarding the intensity and duration of the thunderstorms on Saturday were not provided. Similarly, the exact timing of the heatwave’s onset and cessation within the Sunday-to-Tuesday window may vary.
Further updates on the weather forecast, including specific advisories and safety recommendations, are expected as the weekend progresses.
Story summarized from the original created by Chance Gotsch on www.firstalert4.com, see more information here.
