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Weather San Antonio, TX

San Antonio Weather Wednesday: Showers and Thunderstorms With Highs Near 82°F

Best Window Wednesday: 82°F, Chance Rain Showers then Chance Showers And Thunderstorms
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

Wed 82°Chance Rain ...
Thu 85°Mostly Cloudy
Fri 86°Mostly Cloudy
Sat 90°Partly Sunny
Sun 91°Mostly Cloudy
Mon 93°Partly Sunny
Tue 93°Partly Sunny

San Antonio weather today brings a 30% chance of showers and thunderstorms with highs near 82°F—a typical spring day in the Alamo City that’ll keep you reaching for a compact travel umbrella.

Here’s what our National Weather Service forecasters are tracking: light rain will likely continue mainly along the I-35 Corridor overnight through at least noon Wednesday. If you’re heading to work near Loop 410 or downtown, watch for patchy to areas of fog—visibility could drop to a half mile or so in some spots, so give yourself extra commute time. The morning commute from the North Star area through Stone Oak could be particularly tricky.

By afternoon, shower and thunderstorm activity returns mainly for areas east of I-35 and toward the Coastal Plains. The National Weather Service mentions that with elevated moisture in place, we can’t rule out a quick heavy shower or storm producing half to an inch of rainfall in isolated spots. That’s not a flash flood concern for most of us, but it’s worth keeping an eye on if you’re near the San Antonio River or in areas that drain toward the Hill Country.

Plan accordingly: if you’ve got outdoor errands—groceries at your favorite North Star Market, a walk around Government Canyon State Natural Area, or a visit to the River Walk—do it early before the afternoon storms develop. A packable rain jacket tucked in your bag is smart thinking, and if you’re wearing sneakers, rain boot shoe covers will keep your feet dry.

Wednesday night, the storm chance drops to just 20%, and we’ll settle into mostly cloudy skies with lows around 68°F. Winds will be light from the southeast at 5 to 10 mph.

Thursday looks much better—mostly cloudy skies, highs near 85°F, and just a 3% rain chance. That’s your green light to tackle outdoor projects or hit the links at one of our local courses.

Looking ahead, dry and warm conditions take over Friday into the weekend. Highs will climb into the mid to upper 80s and low 90s—classic spring weather before summer’s heat arrives. This is the perfect window to get yard work done or plan a Hill Country getaway.

Tonight’s the perfect evening for comfort food. Whip up a slow cooker chili or a hearty beef stew—set it this morning and come home to the aroma of a home-cooked meal. Did you know you can order groceries on Amazon? Get everything you need for tonight’s dinner delivered straight to your door.

Stay dry out there, neighbors. The rain should clear out by Thursday.

Live Radar — San Antonio Area

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Live weather radar for San Antonio, TX

Radar data from the National Weather Service