St. Louis residents will wake up to a mild and clear Tuesday before summer heat builds toward Labor Day weekend. Temperatures will stay comfortable in the morning, but warming conditions could bring challenges for late-week holiday travel.
According to the National Weather Service in St. Louis, Tuesday will be mostly sunny with highs near 77 and light north winds. Overnight lows will drop to the mid-50s, keeping conditions pleasant for outdoor activities. Drivers along I-70 and I-55 can expect dry roads Tuesday morning, but officials urge caution as holiday travel increases later in the week.
Wednesday marks a shift toward warmer air, with highs climbing near 80 under mostly cloudy skies. By Thursday, sunshine returns and highs reach the low 80s, signaling the start of a hotter pattern just in time for Labor Day.
Commuters and travelers should stay hydrated, limit strenuous activity during peak afternoon hours, and plan ahead for increased traffic heading into the weekend. The first chance for scattered showers holds off until Sunday, offering most of the week for outdoor plans and school events without interruption.
Looking ahead, the National Weather Service notes that Sunday carries a 20 percent chance of showers and thunderstorms, but most of the day remains dry and warm. With millions expected on the roads, staying alert to sudden weather changes will be key to safe travel.
Five Day Forecast for St. Louis, Missouri
- Tuesday: Sunny, high 77, low 54.
- Wednesday: Mostly cloudy, high 80, low 60.
- Thursday: Partly sunny, high 82, low 61.
- Friday: Mostly sunny, high 84, low 62.
- Saturday: Sunny early, clouds increasing, high 83, low 63.
