NWS WEATHER
Atlanta84°FMostly SunnyBaltimore84°FClearBoston79°FCloudyCharlotte81°FClearChicago73°FMostly SunnyDallas82°FClearDenver55°FClearDetroit75°FCloudyHouston84°FMostly SunnyLos Angeles66°FMostly CloudyMiami84°FMostly SunnyMinneapolis70°FMostly CloudyNew York79°FClearOrlando81°FMostly CloudyPhiladelphia81°FPtly CloudyPhoenix82°FMostly SunnyPortland52°FClearRiverside63°FClearSacramento75°FClearSan Antonio80°FHazeSan Francisco63°FClearSeattle52°FClearSt. Louis77°FClearTampa82°FCloudyWashington86°FClearAtlanta84°FMostly SunnyBaltimore84°FClearBoston79°FCloudyCharlotte81°FClearChicago73°FMostly SunnyDallas82°FClearDenver55°FClearDetroit75°FCloudyHouston84°FMostly SunnyLos Angeles66°FMostly CloudyMiami84°FMostly SunnyMinneapolis70°FMostly CloudyNew York79°FClearOrlando81°FMostly CloudyPhiladelphia81°FPtly CloudyPhoenix82°FMostly SunnyPortland52°FClearRiverside63°FClearSacramento75°FClearSan Antonio80°FHazeSan Francisco63°FClearSeattle52°FClearSt. Louis77°FClearTampa82°FCloudyWashington86°FClear
St. Louis, MO skyline — local weather forecast and conditions
St. Louis, MO Photo: Dwayne Pounds
Weather St. Louis, MO

St. Louis Weather Today: Thunderstorms Overnight, Clearing Saturday

Best Window Saturday: 58°F, Chance Rain Showers then Partly 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

Sat 58°Chance Rain ...
Sun 69°Sunny
Mon 68°Sunny
Tue 80°Mostly Sunny
Wed 83°Sunny
Thu 85°Sunny
Fri 79°Showers And ...

St. Louis is waking up to showers and thunderstorms overnight with a low around 49°F, but the good news is this system is moving out fast—expect clearing and partly sunny skies by Saturday morning with highs near 58°F.

If you’re heading out early to Forest Park or catching sunrise at the Gateway Arch, hold off until after 9 AM CT. The heaviest rain and thunderstorm activity should clear the metro area by mid-morning as a strong cold front pushes southeast. Our friends at the National Weather Service note that severe weather potential has already diminished as cooler air undercuts the storms, so you can breathe easy there.

Saturday daytime looks much better: partly sunny, breezy (winds 13–16 mph gusting to 24 mph), and dry after those early morning showers. Perfect timing if you’re planning a trip to the City Museum or a walk along the Riverfront. Just grab a windbreaker—that northwest breeze will have some bite to it.

Here’s the real prize: Sunday is shaping up to be gorgeous. Sunny skies, highs climbing to 69°F, and light winds. If you’ve been itching to mow the lawn, grill out, or take the family to one of the area parks, Sunday is the day. The only caveat: Saturday night will dip to 43°F, so there’s a low chance of patchy frost on vegetation Sunday morning, but nothing to lose sleep over.

What to pack: Grab a compact travel umbrella or packable rain jacket for the overnight showers and early Saturday. By afternoon, you’ll want to shed layers—that’s classic spring St. Louis.

If you’re planning outdoor activities around the Arch grounds or heading to Forest Park for the weekend, Saturday afternoon onward is your sweet spot. The breezy conditions will actually keep things comfortable as you explore.

Tonight’s forecast calls for comfort food. With rain pattering outside, fire up the slow cooker for a hearty beef stew or chili—set it this morning and come home to warmth and aroma. A programmable slow cooker makes this effortless, and you can grab all your ingredients (beef chuck, carrots, potatoes, broth) on Amazon Fresh for delivery.

Looking ahead: Dry conditions hold through Sunday, then another active weather pattern develops late next week. Enjoy this quiet stretch while it lasts!

Need groceries for tonight’s dinner? Order beef stew ingredients on Amazon Fresh and get delivery straight to your door.

Live Radar — St. Louis Area

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

Radar data from the National Weather Service