St. Louis woke up to clear skies and crisp air on Wednesday morning, June 3, 2026, with temperatures sitting in the mid 50s. Bright sunshine will send highs into the low 80s this afternoon, and a calm, dry stretch should hang on through Thursday before humidity climbs and storm chances return later in the week.
Afternoon Outlook
Temperatures are expected to top out near 83°F under mostly sunny skies, with a light east breeze around 2 to 7 mph. The evening will stay mostly clear with a low near 62°F, a sweet spot for walks, patio dinners, or ballfield time. If you have outdoor plans, this is a good window to enjoy the dry, warm weather.
Late Week Into The Weekend
Southerly winds slide back in on Thursday and help push afternoon highs into the mid to upper 80s, with some spots approaching 90°F by Saturday as humidity builds. Rain and thunderstorm chances increase Friday night and continue through the weekend into Monday, with the best odds early next week. Timing and coverage are still uncertain, so keep an eye on updates from the National Weather Service Saint Louis.
What This Means For Plans
Large outdoor events on Saturday, including the Panama vs. Bosnia friendly at Energizer Park on June 6, could run into pop up storms. Organizers and attendees should have a shelter plan ready in case a thunderstorm rolls through. For more on the match, check the event listing on Explore St. Louis.
Quick Tips
Layer up with a light jacket this morning and then enjoy the sunny afternoon once temperatures climb. For weekend plans, toss a small umbrella in the bag or have an indoor backup option. Keep an ear out for local alerts if storms develop and head to sturdy shelter if any strong thunderstorm warnings are issued.
