St. Louis, Mo. – A stretch of dry, sunny weather begins the week across St. Louis, with temperatures climbing toward the 90s by midweek. The region will stay under high pressure, keeping skies clear and rainfall scarce well into September.
According to the National Weather Service, Sunday will be sunny with highs near 75. Monday brings more sunshine and a high near 79, followed by 83 on Tuesday. By Wednesday, temperatures will climb into the 90s, holding there through the end of the week. Skies will remain mostly clear, with no measurable rain expected.
Commuters along I-70, I-64, and I-44 will enjoy dry roads and smooth travel conditions through the workweek. Outdoor events, construction projects, and sports across St. Louis County will also benefit from uninterrupted sunshine. However, the extended dry stretch raises concerns for lawns, gardens, and agriculture as NOAA’s 6–10 day precipitation outlook keeps Missouri in the “below normal” zone for rainfall.
With highs near 90 expected Wednesday through Friday, residents should prepare for unseasonable warmth. Hydration and sun protection will be important for those spending long hours outdoors.
The National Weather Service expects the hot, dry pattern to remain in place into next weekend, offering little relief for parched soil and vegetation.
Five Day Forecast for St. Louis, MO
- Monday: Sunny, high 79.
- Tuesday: Mostly sunny, high 83.
- Wednesday: Sunny, high 90.
- Thursday: Sunny, high 92.
- Friday: Sunny, high 93.




