By 5:30 a.m. CDT Sunday, May 24, St. Louis-area stations were reporting mostly cloudy skies and about 64°F, with a dew point in the low 60s that keeps the morning feeling muggy. Winds are calm, and a few river-valley spots could see patchy fog or a stray sprinkle before the commute. If you are up and out early, toss a lightweight rain layer in the car just in case.
Morning Commute
There is about a 40% chance of light rain or isolated thunderstorms through the late morning into early afternoon, with the best odds between roughly 7 a.m. and 1 p.m. Temperatures should climb into the low 80s, near 82°F, with a light north wind around 2 to 8 mph. Coverage looks spotty, so most neighborhoods stay dry even if a few see brief downpours, and no watches or warnings are in effect this morning, according to the National Weather Service.
Memorial Day
Monday, May 25 is set to be drier and warm, with mostly sunny skies, highs near 84°F and light east winds. It should cooperate for backyard plans and parades. There is still a low chance for an isolated shower along the southern fringe of the metro, so if your event is near the Ozarks edge, keep a simple backup plan in mind. For the broader weekend timeline, see the broader weekend timeline.
Week Ahead
A pattern shift on Tuesday brings Gulf moisture back into the region, with repeated rounds of afternoon and evening showers and thunderstorms likely through Friday. Forecasters note that wind shear will generally be weak, which limits the chance for widespread severe storms, but locally heavy downpours and slick roads are possible with each afternoon pulse, according to the National Weather Service. Confidence in exact timing is moderate, and day-to-day placement will depend on smaller scale boundaries.
Plan Ahead
From Wednesday through Friday, keep a backup plan for afternoon outdoor gatherings and take a quick look at radar before heading out. A short move indoors will usually beat a sudden downpour. Make sure phone alerts are on and use extra caution on bridges and low-lying streets during heavier bursts of rain.
