St. Louis heads into a hot Friday with temperatures climbing near 90°F under mostly sunny skies — today and Saturday are your best outdoor windows before Sunday’s storm threat arrives.
Today’s Setup
The National Weather Service calls for a high near 90°F with mostly sunny conditions and south winds of 7 to 13 mph, gusting up to 21 mph. Forecasters note impressive atmospheric instability — 2,000 to 3,000+ J/kg of SBCAPE — but a strong capping inversion should suppress afternoon storm development across the metro. Translation: a dry, hot, breezy Friday for most of St. Louis.
Cardinals fans, it’s Bucket Hat Day at Busch Stadium as St. Louis takes on the Cincinnati Reds. Bleacher seats will be warm, so hydrate early and wear your St. Louis Cardinals jersey with pride. Get tickets on SeatGeek if you still need them.
Tonight, HARDY brings THE COUNTRY! COUNTRY! TOUR! to Hollywood Casino Amphitheater. Temperatures ease to around 72°F by showtime with southwest winds at 6 to 13 mph — solid outdoor concert weather. Snag a HARDY t-shirt or HARDY hat to rep the show.
Heat and Fire Danger
With highs near 90°F today and 92°F Saturday, heat is the main story. South winds gusting to 21 mph combined with dry pre-rain conditions create elevated fire risk — especially if you’re grilling near Forest Park or running equipment in the yard. Keep a fire extinguisher home accessible and a fire blanket kitchen within reach. If your AC is struggling overnight, a portable window AC unit can make a real difference in sleeping comfort when lows only drop to the low 70s.
Saturday: Heat Peaks, Late Storm Chance
Saturday reaches near 92°F with partly sunny skies. The Cardinals host the Reds again at Busch Stadium — tailgating will be steamy, so set up shade early. National Weather Service forecasters note isolated to scattered afternoon thunderstorms are possible as a mid-level system ejects into the Mid-Mississippi Valley, so keep an eye on the sky during the late innings.
Also Saturday at The Pageant: Kittie celebrates 30 years with the Legacy Of Fire Tour: 30 Years of Kittie. Find tickets on StubHub for what should be a memorable night.
Sunday: Storms Likely — Plan Around Them
Sunday’s Cardinals-Reds finale at Busch Stadium (June 7) faces a 62% chance of showers and thunderstorms, with a high near 87°F. Rain delays are possible. The St. Louis Battlehawks’ 2026 UFL Playoffs game at The Dome at America’s Center is safely under a roof — no weather worries there.
Too Hot to Cook? Skip the Stove
Cold Thai noodle salad, a build-your-own wrap bar, or smoothie bowls are perfect for this heat. A high-powered blender makes quick work of smoothie bowls and chilled drinks. Need ingredients? You can order groceries on Amazon and have everything delivered to your door.
Next Few Days
Heat and humidity continue building through next week, per the National Weather Service, with daily storm chances persisting through at least early next week. Sunday and Monday offer a brief cooldown before temperatures climb again. Keep an emergency first aid kit handy if you’re spending time outdoors during any storm activity.
Check the St. Louis weather forecast for daily updates, and browse outdoor gear deals to gear up for storm season.
