NWS WEATHER
Atlanta63°FCloudyBaltimore63°FClearBoston52°FCloudyCharlotte54°FClearChicago55°FMostly CloudyDallas66°FClearDenver54°FClearDetroit52°FMostly CloudyHouston72°FClearLos Angeles63°FCloudyMiami81°FClearMinneapolis50°FClearNew York56°FCloudyOrlando75°FCloudyPhiladelphia60°FClearPhoenix79°FClearPortland54°FLight RainRiverside61°FCloudySacramento55°FClearSan Antonio65°FClearSan Francisco55°FClearSeattle54°FCloudySt. Louis64°FClearTampa73°FFog/MistWashington63°FClearAtlanta63°FCloudyBaltimore63°FClearBoston52°FCloudyCharlotte54°FClearChicago55°FMostly CloudyDallas66°FClearDenver54°FClearDetroit52°FMostly CloudyHouston72°FClearLos Angeles63°FCloudyMiami81°FClearMinneapolis50°FClearNew York56°FCloudyOrlando75°FCloudyPhiladelphia60°FClearPhoenix79°FClearPortland54°FLight RainRiverside61°FCloudySacramento55°FClearSan Antonio65°FClearSan Francisco55°FClearSeattle54°FCloudySt. Louis64°FClearTampa73°FFog/MistWashington63°FClear
St. Louis, MO skyline — local weather forecast and conditions
St. Louis, MO Photo: Dwayne Pounds
Weather St. Louis, MO

St. Louis Weather Today: Sunny 84°F With a Brief Storm Chance After 9 PM

Best Window Today: 84°F, 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
Disclosure: This article may contain affiliate links. We may earn a small commission at no extra cost to you. As an Amazon Associate, Weather Window earns from qualifying purchases.

7-Day Forecast

Today 84°Sunny
Wed 77°Sunny
Thu 76°Sunny
Fri 87°Chance Showe...
Sat 90°Mostly Sunny
Sun 92°Slight Chanc...
Mon 87°Chance Showe...

St. Louis is waking up to one of the best days of spring — sunny skies and a high near 84°F make today an easy call to get outside. Plan your outdoor time for this afternoon; a cold front will bring a slight chance of showers and thunderstorms late tonight, mostly between 9 PM and 1 AM CT.

Today’s Setup

High pressure delivers a mostly sunny afternoon with southwest winds of 3 to 12 mph — comfortable enough for a walk along the Arch grounds or a round at your favorite Chesterfield course. The National Weather Service notes dewpoints climbing into the low 50s, about 10 degrees higher than the past few days. That added moisture means pollen is on the move. If you’re prone to seasonal allergies, the afternoon southwesterly flow will be pushing tree and grass pollen, so allergy sufferers may want to keep antihistamines on hand.

Best Window To Be Outside

Your prime outdoor window is now through around 6 PM CT. Forest Park, Citygarden, and The Loop are all calling. This is also textbook grilling weather — fire up the grates for burgers, steaks, or grilled chicken with corn on the cob. A reliable instant-read meat thermometer keeps thick cuts from guessing, and a grill brush and scraper set gets the grates game-ready before you start.

Tonight’s Storm Window

The cold front pushes through after dark. The National Weather Service forecasts a slight chance of showers and thunderstorms between 9 PM and 1 AM CT, with a 20% precipitation chance overall. The Storm Prediction Center has not issued an outlook for the St. Louis area, and NWS meteorologists describe the severe weather threat as low. Any activity should be brief. Wrap up patio plans and evening cookouts well before 9 PM to stay dry.

Upcoming Events This Week

Ari Lennox brings the Vacancy Tour to The Factory on Wednesday, May 13 — and Wednesday shapes up beautifully at 77°F and sunny. Great night for live music. Get tickets on SeatGeek before they sell out.

St. Louis City SC hosts LAFC at Energizer Park on Thursday, May 14. Expect mid-70s, light winds, and clear skies at kickoff — one of the cleanest outdoor weather windows of the week. Show up right in a St. Louis City SC jersey or a St. Louis City SC scarf to cheer on the squad.

Kid Rock’s Freedom 250 Tour hits Hollywood Casino Amphitheater on Friday, May 15. Find tickets on StubHub and gear up with a Kid Rock t-shirt or Kid Rock hat to rep the show.

Dinner Tonight

An 84°F sunny afternoon practically demands a cookout. Fire up burgers, steaks, or grilled chicken with corn on the cob — it doesn’t get more St. Louis summer than that. Need ingredients? You can order groceries on Amazon and have everything for tonight’s cookout delivered to your door. A solid instant-read meat thermometer ensures your burgers hit the mark every time.

Next Few Days

Wednesday: 77°F and sunny, but northwest winds gusting to 22 mph — secure patio furniture and, if you’re setting up for an outdoor event, a pop-up canopy tent with weights will keep things from blowing away. Thursday cools slightly to 76°F with light southeast winds and plenty of sunshine — a gorgeous day for a Cardinals game or a walk along the riverfront. The National Weather Service notes even warmer weather is expected to arrive by the weekend.

Stay current with the full St. Louis weather forecast and browse outdoor gear deals if you’re getting ready for a busy week outside.

Upcoming Home Games

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

St. Louis City SC vs LAFC
Thu, May 14 · Energizer Park

Live Radar — St. Louis Area

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

Radar data from the National Weather Service