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St. Louis, MO skyline — local weather forecast and conditions
St. Louis, MO Photo: Dwayne Pounds
Weather St. Louis, MO

St. Louis Weather Monday: Sunny and 86°F Before Storms Return Wednesday

Best Window Today: 86°F, Patchy Fog then Sunny
Rain Risk Elevated
What To Wear / Bring Rain layer, water-resistant shoes, and a backup indoor plan
Useful Links Local forecast, radar, and relevant planning links
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7-Day Forecast

Today 86°Patchy Fog t...
Tue 89°Sunny
Wed 92°Sunny
Thu 88°Chance Showe...
Fri 87°Chance Showe...
Sat 89°Chance Showe...
Sun 93°Mostly Sunny

St. Louis wakes up to patchy fog this morning, but it burns off by 8 a.m. CT and gives way to a sunny, pleasant Monday with a high near 86°F — a few degrees below normal for early August. It’s a great day to get outside before the pattern turns unsettled midweek.

Today’s Setup

A weak ridge of high pressure sitting over central Missouri is sliding east through tonight, according to the National Weather Service. That means plenty of sunshine today with just a light NE wind around 3 mph, and a comfortable overnight low near 67°F under mostly clear skies.

Best Window To Be Outside

Today and Tuesday are the pick of the week. Tuesday warms to near 89°F with increasing high clouds and a light SE breeze — solid conditions for a walk through Forest Park, a morning at the Gateway Arch grounds, or getting the mowing and yard work done early before afternoon warmth peaks. Fishing along the Mississippi River should stay calm with winds under 10 mph both days.

Rain And Storm Risk Builds Midweek

The National Weather Service says a slow-moving cold front will push into the area Wednesday afternoon, bringing a 60-80% chance of showers and thunderstorms that continues into Thursday night as Wednesday’s high reaches near 92°F. There’s no current Storm Prediction Center severe weather outlook for the St. Louis area, but keep an eye on the forecast as the front approaches. No flash flood risk has been highlighted for our region this cycle.

What To Wear Or Bring

Sun protection matters today and Tuesday with clear skies overhead — a UPF 50+ Sun Hoodie is currently marked down to $5 and is a smart grab before fishing or yard work (see the deal). Staying hydrated matters too, so keep a Stanley quencher tumbler filled and nearby.

Games And Concerts This Week

NE-YO & Akon: Nights Like This Tour 2026 hits Hollywood Casino Amphitheater Tuesday, Aug. 4, with dry, mild evening weather expected — Get tickets on SeatGeek before the lawn sells out. The Psychedelic Furs with Living Colour play The Pageant Wednesday, Aug. 5, right as storm chances ramp up, so plan for possible wet roads if you’re heading in — Find tickets on StubHub. Lynyrd Skynyrd x Foreigner’s Double Trouble Double Vision Tour lands at Hollywood Casino Amphitheater Thursday, Aug. 6, still inside the front’s lingering storm window, so a Lynyrd Skynyrd t-shirt and a rain plan are both good ideas. Looking ahead, the St. Louis Cardinals host the Colorado Rockies Aug. 8 at Busch Stadium for Cardinals Polo night — grab Official team gear on Fanatics and, if you’re tailgating beforehand, a portable propane grill makes cooking in the lots easy.

Tonight’s Dinner

With calm, dry weather still in place tonight, it’s a great last chance to fire up the grill before the front arrives — check out this guide on smoking tri-tip like brisket for a low-effort, big-flavor dinner. Need ingredients? You can order groceries on Amazon and have everything for tonight’s cookout delivered before you fire up the coals.

Next Few Days

Expect sunny skies and highs climbing into the upper 80s Tuesday, then near 92°F Wednesday as the cold front’s showers and thunderstorms arrive that afternoon and continue through Thursday night. Cooler, more unsettled conditions look likely to close out the week — check back as the front’s timing comes into sharper focus.

Upcoming Home Games

Plan around the forecast — grab tickets, gear up, and see kickoff conditions.

St. Louis Cardinals vs Colorado Rockies: Cardinals Polo
Sat, Aug 8 · Busch Stadium
Read the gameday forecast →

Live Radar — St. Louis Area

Full interactive radar →
Live weather radar for St. Louis, MO

Radar data from the National Weather Service