St. Louis is in for a warm Saturday with a high near 82°F — mostly cloudy but dry through the afternoon, so get your outdoor plans in early before showers and thunderstorms push through after 7 PM CT.
Today’s Setup
The National Weather Service says Saturday daytime stays nearly rain-free (just 3% precipitation chance) with a southwest breeze around 5 mph keeping things comfortable. Temperatures climb from a mild overnight low of 62°F into the low 80s by afternoon. It’s not a bluebird day at Forest Park or Tower Grove, but the clouds won’t derail outdoor plans during daylight hours.
Best Window To Be Outside
Morning through early evening is your go-to. The NWS Area Forecast Discussion out of the St. Louis office notes a round of scattered showers and a few thunderstorms is expected to move through starting late afternoon and continuing through the night — most likely after 7 PM CT. The good news: severe weather is not anticipated. The caution: occasional lightning, bursts of heavy rain, and a 20% chance of highly localized pockets of 1–2 inches are possible. If your yard has drainage issues, keep that in mind.
Tonight’s Events: Plan Around The Storms
Saturday is packed in St. Louis, and a few key events are weather-dependent:
- St. Louis City SC vs. Austin FC kicks off at Energizer Park tonight (May 23). Earlier hours look manageable, but evening conditions will deteriorate. Represent in a St. Louis City SC jersey or grab a St. Louis City SC scarf — and keep one eye on the radar. Still need seats? Get tickets on SeatGeek before they’re gone.
- Styx with special guest Cheap Trick at the Ozarks Amphitheater is an outdoor show tonight — arrive early and pack a poncho. Show off a Styx t-shirt or Styx hoodie. Find tickets on StubHub if you’re still on the fence.
- Prefer a dry evening? MJ (Touring) at the Fabulous Fox Theatre and Tech N9ne & E-40: STRANGE Wid’ It Tour 2026 at The Factory are both indoors — smart calls if the storm threat makes you nervous.
Allergy Heads-Up
Warm, breezy conditions before the rain can push pollen counts higher mid-morning. If tree or grass pollen hits you hard, an allergy relief nasal spray before heading out helps considerably. Running a HEPA air purifier at home keeps indoor air cleaner on active pollen days.
Storm Prep At Home
With a 60% chance of overnight storms and localized heavy rain possible, it’s worth checking your basement drainage situation before bed. A sump pump battery backup keeps your pump running even if the power flickers during the storms — a small investment that pays off fast in a St. Louis spring.
Tonight’s Dinner
A stormy Saturday evening calls for something warm and easy — pasta or a hearty stir-fry fits perfectly without requiring a grocery run in the rain. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door.
Next Few Days
Sunday stays mild near 82°F but opens with a 40% morning shower chance before tapering off. Memorial Day looks mostly dry — the National Weather Service expects just a 20–40% chance of showers along and south of I-44 in the afternoon. The work week ahead brings repeating afternoon pop-up showers and thunderstorms at 50–80% each day, so the active pattern holds. Check the St. Louis weather forecast for the latest, and browse outdoor gear deals to stay ready for whatever May throws at you.
