St. Louis will see mostly sunny skies this morning with a high near 77°F, but scattered showers and thunderstorms are expected to develop this afternoon and early evening as a weak Pacific cool front pushes through the region.
Today’s Setup
A cool front is moving slowly southward across Missouri this morning and should reach northern sections of the St. Louis area by late morning. The National Weather Service expects shower chances to increase during the afternoon as low-level moisture converges along this boundary. Scattered thunderstorms are forecast for the afternoon and very early evening hours—most likely between 3 PM and 4 PM CT, with activity continuing into the early evening. While there’s a 40% chance of precipitation, the good news is that instability looks relatively weak. The Storm Prediction Center has not issued any severe weather outlook for our area, and the National Weather Service notes that any stronger storms may produce only small hail or gusty winds at worst.
Best Window To Be Outside
If you’re planning outdoor activities at the Gateway Arch or Forest Park, get out there this morning and early afternoon while conditions are mostly sunny. The St. Louis Battlehawks take on the Columbus Aviators tonight at The Dome at America’s Center—that indoor venue means you won’t have to worry about the evening storms. If you’re tailgating beforehand, bring a portable propane grill and plan to wrap up by 3 PM CT before the rain arrives. Grab Official team gear on Fanatics to show your support.
Rain, Wind, and Storm Timing
The National Weather Service forecasts that isolated showers may pop up between 3 PM and 4 PM CT, followed by scattered showers and thunderstorms through early evening. Winds will be light to moderate from the southwest at 6 to 9 mph. After midnight, rain chances increase significantly—there’s a 90% chance of showers and thunderstorms before 1 AM CT tonight, so keep a packable rain jacket handy if you’re heading out this evening. The good news: this system moves through relatively quickly, and Saturday looks fantastic.
What To Wear Or Bring
Layer up this morning (it’s 47°F overnight), then shed layers as it warms to 77°F by afternoon. A packable rain jacket and waterproof phone pouch are smart carries if you’ll be outside later in the day. If you’re dealing with spring allergies—and with all this moisture moving in, pollen counts may spike—consider grabbing Zyrtec 24 hour allergy 90 count before the rain starts. Allergy season in St. Louis can be brutal, and the damp air often traps pollen near ground level.
Saturday & Beyond
Saturday is a real beauty. Expect sunny skies with a high near 81°F and light westerly winds of 3 to 9 mph—perfect for golf, fishing, or a walk along the Mississippi River. If you’re heading to one of the concerts this weekend, like ZZ Top & Dwight Yoakam: Dos Amigos Tour at the Ozarks Amphitheater on Friday or Bush - The Land Of Milk and Honey Tour on Saturday, the outdoor venues will be fantastic Saturday night. Find tickets on SeatGeek or Get tickets on SeatGeek for the best deals.
Sunday brings another chance of rain (20–40%) as a cold front approaches, with cooler weather settling in behind it. Highs will drop back into the upper 60s by Monday.
Dinner Plans
With storms rolling in this evening, tonight’s a perfect night for a warm, comforting dinner at home. Pasta, stir-fry, or a slow-cooker meal all work beautifully on a rainy night. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door.
Looking ahead: Saturday is your best day this weekend for outdoor plans. After that, another system moves in Sunday, so enjoy the sunshine while it lasts!

