St. Louis is looking at a sunny, warm Tuesday with a high near 90°F and light southeast wind around 1 to 5 mph, according to the National Weather Service — today is your best outdoor window before a stormier pattern moves in Wednesday. If you’ve got yardwork, a bike ride along the Mississippi River, or a trip to the park on your list, this is the day to do it.
Today’s Setup
Any lingering fog tucked into the river valleys along the Mississippi and Missouri this morning should burn off quickly after sunrise, per NWS forecasters, leaving a mostly sunny sky the rest of the day. Temperatures will run a few degrees warmer than yesterday, with overnight lows dipping to around 70°F under mostly clear skies and southeast wind 2 to 6 mph.
Best Window To Be Outside
Morning through early evening today is prime time — dry, sunny, and rain-free with 0% chance of precipitation. Wednesday holds a similar setup early (sunny, high near 91°F, just a 10% chance of rain), so get your outdoor plans, whether that’s a round at one of the courses near Forest Park or an evening walk near the Gateway Arch grounds, in before Wednesday afternoon.
Rain, Wind, Or Storm Risk
The NWS Area Forecast Discussion flags a slow-moving cold front sliding into the region Wednesday, with showers and thunderstorms increasing by midday and continuing into Thursday morning. A few storms Wednesday afternoon and evening could turn strong to severe, with damaging wind gusts the main threat — worth keeping an eye on if you’ve got evening plans Wednesday. Wednesday night’s probability of precipitation jumps to 65%, with activity likely starting between 7 PM and 1 AM CT.
What To Wear Or Bring
Sunscreen and hydration are the name of the game today with full sun and highs near 90°F. Golfers and anglers heading out should pack a golf towel microfiber for the humidity, and boaters on the rivers should stock up while conditions are calm — West Marine ski vests are a smart pickup before the front arrives. If you’re fishing or spending hours outside, a UPF 50+ Sun Hoodie is a cheap way to avoid a sunburn.
This Week’s Events & Games
Music fans have options: NE-YO & Akon play Hollywood Casino Amphitheater tonight, and The Psychedelic Furs with Living Colour hit The Pageant on Wednesday, Aug. 5 — both good bets for tickets on SeatGeek while the weather’s clear. Corey Kent follows at The Blue Note on Thursday, Aug. 6; find tickets on StubHub if you’re heading downtown. Looking ahead, the Cardinals host the Rockies at Busch Stadium on Sunday, Aug. 9 — grab official team gear on Fanatics now, and check back for a firmer gameday forecast as the date gets closer.
Dinner Tonight
With clear skies and a high near 90°F, tonight is built for the grill — think burgers, steaks, or grilled chicken with corn on the cob. An instant-read meat thermometer takes the guesswork out of temps, and a grill brush and scraper set keeps grates ready to go. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door, including Amazon Fresh groceries for the sides.
Next Few Days
Wednesday starts sunny and warm before showers and thunderstorms move in during the afternoon, some potentially strong with damaging wind gusts. That activity continues into Thursday morning as the front works through. Check the outdoor gear deals page for sun protection and boating essentials while today’s dry stretch lasts.

