Todays weather in St. Louis MO - Wednesday - 03 June 2026

St. Louis is waking up to one of its best weather days of the season. Eighty-three degrees, full sun, and a wind so light it barely registers — east at two to seven miles per hour. Rain chance is zero, the commute is clean in both directions, and by midday you'll be shedding those light layers. Tonight stays comfortable with mostly clear skies and a low around sixty-two degrees — ideal sleeping weather if you crack a window.The good news extends into the rest of the week. Thursday climbs to eighty-seven degrees with a south breeze picking up slightly, and Friday reaches eighty-eight — both genuinely excellent days for anything you've been putting off outdoors. If you have yard work, errands, or outdoor plans, Thursday and Friday are your window.Here's where the forecast shifts: Friday night, clouds build and showers and thunderstorms become possible after midnight. That forty-five percent chance carries into Saturday near ninety degrees, continues Sunday, and peaks Monday with a sixty-five percent chance of showers and thunderstorms at a high near eighty-seven. The heat doesn't break. The humidity won't either. It's the classic Missouri combination — warm, wet, and unsettled — and it's persistent enough that weekend outdoor events need a backup plan.Bottom line for St. Louis today: step outside, enjoy the sun, and knock out those outdoor to-do's before Friday afternoon. The weather earns it right now.This episode includes AI-generated content.