St. Louis weather today brings a 40% chance of showers and thunderstorms developing this afternoon and evening, with temperatures reaching around 70°F before conditions deteriorate after 3 PM CT.
Here’s what the National Weather Service is tracking: a cold front that stalled overnight near the Missouri-Arkansas border will remain your focal point for storm development. An approaching mid-level shortwave and warm air advection will pump energy into the atmosphere this afternoon, causing showers and thunderstorms to blossom across the forecast area. The timing is crucial—expect the best chance for organized storms between 2 PM and 8 PM CT, particularly across southeast Missouri and southern Illinois where a few storms could become strong to severe with quarter-sized hail potential.
For St. Louis proper and the metro area around Busch Stadium and Forest Park, the severe risk appears lower, but don’t let your guard down. Keep an eye on conditions after 3 PM CT, and if you’re heading downtown or to any outdoor activities, have a plan to get indoors quickly if lightning threatens. The National Weather Service notes that instability will be somewhat limited thanks to a warm nose aloft, but if storms organize and maintain themselves, they could pack a punch.
If you’ve got evening plans—like catching Ethel Cain at The Factory tonight or heading to the Stifel Theatre for David Byrne’s Who is the Sky Tour—arrive early and be weather-aware. Grab tickets on SeatGeek or Find tickets on StubHub to secure your spot, and consider bringing an umbrella or checking the radar on your phone throughout the day.
The good news? Wednesday rebounds beautifully. Expect mostly sunny skies, a high near 65°F, and northwest winds around 12 mph—perfect conditions for a walk around the Gateway Arch or a stroll through Forest Park. This is ideal weather for outdoor activities you may have postponed.
For tonight’s dinner, stick with something quick and flexible—a hearty pasta or stir-fry works regardless of whether you’re eating indoors or dashing between raindrops. If you need ingredients, you can order groceries on Amazon and have everything for tonight’s dinner delivered to your door. Stock up on essentials like Amazon Fresh groceries so you’re not caught off guard if storms knock out power briefly.
If allergies are hitting you hard with all this spring weather activity, consider grabbing an allergy relief nasal spray and a pollen count face mask to stay comfortable during outdoor moments between the storms.
Looking ahead: Wednesday stays dry and cool, perfect for outdoor plans. Thursday night dips to 44°F, so bundle up if you’re heading out. The remainder of the work week looks seasonally cool and largely dry—excellent news for anyone with outdoor weekend plans or those hoping to fire up a portable propane grill for some backyard cooking.
Stay weather-aware today, and enjoy that beautiful Wednesday!
