St. Louis is in for a sunny, comfortably dry day today, with highs near 88°F and some of the lowest humidity we’ll see all week — a great excuse to get outside before the muggy air creeps back in tomorrow.
Today’s Setup
Today’s high near 88°F comes with dewpoints only in the mid to upper 60s, thanks to an easterly flow wrapping around a massive upper-level ridge parked over the Upper Midwest, according to the National Weather Service St. Louis office. That ridge is keeping the deepest tropical moisture bottled up to our south, so forecasters note highs in the mid to upper 80s will barely register a heat index today — a rare treat for mid-July. Winds stay light out of the northeast at 2 to 8 mph, and skies clear out tonight with a low around 70°F.
Best Window To Be Outside
With a 0% chance of rain and light winds, late morning through early evening is prime time for a Forest Park walk, a stroll along the riverfront near the Gateway Arch, or yard work you’ve been putting off. Tuesday steps back toward typical summer feel, with highs near 91°F as dewpoints climb into the 70s from east to west. If you’ve got mowing, grilling, or a trip out to Creve Coeur Lake planned, today is the more comfortable pick.
Dry Stretch, Light Winds
Deep subsidence — sinking air that suppresses clouds and rain — is keeping the region locked in dry conditions through midweek, with precipitation chances confined to the far southern part of the forecast area. That dryness, combined with more grilling and fire pits in use during the warm stretch, makes it a smart week to double-check your smoke detector combo pack batteries at home. Winds stay under 10 mph through Wednesday, so tie-downs aren’t critical, but a pop-up canopy tent with weights is still worth keeping handy for any yard gathering.
Gameday, Concerts & What To Bring
Mark your calendar: St. Louis City SC hosts Sporting Kansas City on July 16 at Energizer Park, right as the National Weather Service’s key messages flag heat index values climbing to 100-105°F Thursday through Saturday. Grab Official team gear on Fanatics and pack extra water if you’re heading to the match. Music fans have options too — The Black Keys bring their PEACHES ‘N KREAM tour to The Factory on July 19; check our weather guide for the show and look into tickets on StubHub before the heat and humidity build back in. A cooling neck towel earns its keep once that muggier air returns.
Next Few Days
After today’s comfortable stretch, expect a gradual warm-up: Tuesday reaches near 91°F with rising dewpoints, and confidence is building for highs in the low-to-mid 90s by midweek, with heat index values around 100-105°F Thursday through Saturday. Planning a trip to the water once things heat up? Check out our outdoor gear deals or the Intex floating lounge for cooling off at the lake.
For dinner tonight, a light pasta or stir-fry fits the mild evening ahead — nothing heavy needed with temps easing into the low 70s after sunset. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door, including Amazon Fresh groceries for a quick weeknight run.
