St. Louis

St. Louis Basks in Sun Before Midweek Thunderstorm Smackdown

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Published on August 03, 2026
St. Louis Basks in Sun Before Midweek Thunderstorm SmackdownSource: Google Street View

St. Louis is starting Monday with clear skies, light winds and temperatures in the mid-60s after some patchy fog. The fog should lift before 8 a.m., making way for a sunny afternoon with a high near 86 degrees and no rain expected.

Sunny Stretch Builds Through Wednesday

Tonight will stay mostly clear, with temperatures dipping to about 67 degrees and east winds of 1 to 5 mph. Tuesday brings more sunshine and a high near 89, followed by an even warmer Wednesday near 92 degrees, according to the National Weather Service St. Louis.

For outdoor plans, Monday through Wednesday look like the week's easiest window. Winds remain light, generally below 6 mph, and the forecast keeps rain chances at zero through Wednesday afternoon.

Storm Chances Rise Wednesday Night

The pattern turns more unsettled Wednesday night, when showers and thunderstorms could develop after 1 a.m. Thursday carries a 60% chance of showers and thunderstorms, with storms most likely from the morning into early afternoon before tapering to a slight chance later in the day.

Showers and thunderstorms may linger Thursday night, with another chance Friday and a smaller chance Saturday morning. The forecast then trends warmer and mostly sunny again Sunday, when St. Louis could reach 93 degrees; no watches, warnings or advisories are currently listed.