St. Louis wakes up to patchy fog Thursday morning, clearing to a warm and partly sunny 86°F afternoon — get outside once the mist lifts and enjoy the dry air before rain chances return this weekend.
Today’s Setup
The National Weather Service flags patchy dense fog in Missouri’s river valleys before 7 AM CT, especially across east-central MO and southwest Illinois. Motorists heading across the river early should slow down — visibility could dip near a quarter-mile in low-lying spots. By mid-morning the fog lifts, leaving a comfortable partly sunny day with a high near 86°F and light northeast winds of 2 to 9 mph. A backdoor cold front has pushed Gulf moisture southwest, keeping St. Louis mostly dry today.
Best Time To Be Outside
Once the fog clears, the day opens up. Forest Park, the Gateway Arch riverfront, or a walk through Tower Grove Park are all solid options. Low humidity and light winds make this feel genuinely pleasant for late May. Golfers, today is your day — check out the Callaway Big Bertha Fairway Wood for summer golf if your bag needs an upgrade.
Rain & Weekend Risk
Friday stays mostly cloudy with a high near 80°F. The National Weather Service notes a slight chance of rain showers after 4 PM CT Friday — about a 20% chance for the St. Louis metro, higher toward the Ozarks. Saturday brings a 33% rain chance, which matters if you’re headed downtown to Busch Stadium. See our full Busch Stadium weather breakdown for the Cardinals-Cubs series before you go. Pack your St. Louis Cardinals jersey and toss a compact poncho in your bag.
Health & Safety Notes
Warm, dry, and breezy days are peak pollen days in St. Louis. A saline sinus rinse Neti pot kit after time outdoors helps, and keeping an air purifier for smoke and allergens running indoors makes a real difference during allergy season. With dry air and gusty stretches, it’s also a smart time to check your fire preparedness — a NOAA weather radio is essential in tornado country, and a fireproof document safe protects important papers year-round.
Events This Week
Tonight, Between The Buried And Me plays The Pageant — mild and dry, no weather concerns. Friday, catch the Killers of Kill Tony comedy show at The Factory or cheer on the St. Louis Battlehawks vs. the Dallas Renegades at The Dome at America’s Center — both are dry evenings. Get tickets on SeatGeek for either show. Saturday, Claypool Gold (Les Claypool) hits The Factory — a Les Claypool t-shirt makes a solid show-night look.
Next Few Days
Tonight: mostly cloudy, low near 66°F. Friday: 80°F with a 20% late-afternoon shower chance. Saturday: 82°F, 33% chance of showers — bookmark the St. Louis weather forecast for real-time updates. Next week brings a steady drying trend and near-average temperatures — a welcome reset after a busy weekend.
Dinner tonight: Pasta or a quick stir-fry suits tonight’s warm, comfortable evening perfectly. Need ingredients? You can order groceries on Amazon and have everything delivered to your door. Check our outdoor gear deals for more summer-ready picks.

