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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 Sunday: Sunny 76°F, Then Storms Tonight

Best Window Sunday: 76°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
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7-Day Forecast

Sun 76°Sunny
Mon 81°Slight Chanc...
Tue 67°Showers And ...
Wed 61°Slight Chanc...
Thu 67°Slight Chanc...
Fri 76°Slight Chanc...
Sat 76°Slight Chanc...

St. Louis weather today is shaping up sunny and pleasant with a high near 76°F—perfect for outdoor plans—but storms are moving in tonight that could impact your evening.

This morning starts clear and cool around 42°F, ideal for an early jog around Forest Park or along the riverfront near the Gateway Arch. By midday, southwest winds of 6 to 14 mph will kick up with gusts to 25 mph, so secure any outdoor furniture or decorations. If you’re heading to Busch Stadium for the Cardinals vs. Los Angeles Dodgers game today, you’ll have excellent conditions for baseball—sunny skies and mild temperatures. Grab a St. Louis Cardinals jersey or St. Louis Cardinals fitted cap to show your colors, and Get tickets on SeatGeek if you’re still looking to join the crowd.

Here’s where things shift: after sunset around 7 PM CT, the National Weather Service expects a chance of showers and thunderstorms to develop, becoming likely between 11 PM and 2 AM CT. The forecast discussion notes scattered to isolated storms are expected mainly along the I-70 corridor, with the greatest threat of severe weather being small hail (up to 1 inch) and isolated damaging wind gusts. Confidence in strong storms remains low, but the timing is tight—instability will be waning quickly as the cold front moves through.

If you’re planning outdoor activities tonight, wrap up by 10 PM CT. Those with allergies should note that pollen levels may spike before the rain arrives; consider keeping an allergy relief nasal spray or pollen count face mask handy as the system approaches.

Monday looks much better. A slight chance of rain showers lingers before 7 AM CT, then mostly sunny skies return with a high near 81°F. The Cardinals host the Milwaukee Brewers Monday at Busch Stadium—another great day for baseball with warm, mostly dry conditions. Tailgating will be solid; just bring a light jacket for early morning.

For dinner tonight before the storms roll in, consider a simple pasta or stir-fry that won’t tie you to the kitchen. You can order groceries on Amazon to stock up on fresh vegetables, pasta, and sauce—everything delivered so you can focus on watching the game.

Looking ahead: Tuesday and Wednesday will see additional scattered showers and thunderstorms as a second system moves through, so plan indoor activities for those days. By Thursday, conditions should clear and warm nicely again.

Live Radar — St. Louis Area

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Live weather radar for St. Louis, MO

Radar data from the National Weather Service