St. Louis, Mo. – After a string of hot August days, cooler and drier weather is moving into Missouri, with highs in the 80s holding through Friday before a cold front knocks temperatures into the 70s by Sunday. The National Weather Service in St. Louis said conditions will stay mostly dry into early next week, keeping rain chances below 30%.
According to the weather service, a stray shower or thunderstorm may pop up this afternoon in northeast Missouri and west-central Illinois, though rainfall amounts should remain light. Overnight lows will settle in the 60s, offering a break from recent humidity.
From Saturday night into early next week, high pressure will dominate, bringing clear skies and cooler air. Highs will dip into the 70s across much of the region Sunday through Tuesday, with St. Louis, Columbia, and Quincy all expected to stay below 80 degrees. Forecasters note the lack of measurable rain could stress gardens and lawns, urging residents to water plants and monitor soil moisture.
Drivers and travelers can expect favorable road conditions through the stretch, but anyone planning outdoor activities should be mindful of the limited rain relief.
Dry weather is expected to hold into at least Tuesday, with the next meaningful rain chance uncertain.
Five Day Forecast for St. Louis, Missouri
- Wednesday: High 86, Low 65, slight chance of isolated shower
- Thursday: High 87, Low 66, dry and mostly sunny
- Friday: High 85, Low 64, partly cloudy, dry
- Saturday: High 82, Low 62, turning cooler, evening cold front possible
- Sunday: High 77, Low 60, dry and pleasant





