This morning (Wednesday, April 15) St. Louis woke to clear skies and temperatures in the low 70s, but the calm will not last. A warm, humid air mass is set to push highs into the low 80s and prime the region for scattered thunderstorms late this afternoon and into the evening. Residents should plan for sudden heavy rain, frequent lightning and brief strong gusts if storms develop.
Afternoon Into Evening: Storm Threat Ramps Up
Showers and scattered thunderstorms are most likely from mid- to late afternoon into the evening, with a high near 83°F and southwest winds of 8–13 mph, gusting as high as 23 mph. According to the National Weather Service, some storms could be severe, with the primary threats being large hail and damaging winds, and brief heavy downpours will be possible. Expect localized reductions in visibility and sudden gusts that can slow the evening commute, and have a weather plan if you are outdoors.
Tonight Through The Weekend
Scattered storms are likely into Wednesday night, with forecasters showing the chance of precipitation near 90% and lows around 64°F. After that, a weak front should lower humidity Thursday while still allowing another warm day near 84°F. The NWS also highlights another system Friday that could produce additional storms late in the day, with damaging winds the main concern. This quick flip from warm to much cooler air follows an early spring warm spell we covered in March, as detailed in our earlier piece on the spring sizzler.
Game-Day And Commute Tips
If you are heading to Busch Stadium for the Cardinals game or to any afternoon event, leave extra time and bring rain gear, since storms could produce sudden gusts and heavy downpours. The Cardinals are scheduled to host the Cleveland Guardians this afternoon; check the Baseball-Reference game preview for start-time details and any updates. Keep a charged phone and monitor local traffic and weather updates so you are not surprised by a quick storm line.
