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
San Antonio, TX skyline — local weather forecast and conditions
San Antonio, TX Photo: ZHENYU LUO
Weather San Antonio, TX

San Antonio Weather Today: Soggy Monday With Heavy Rain and Thunderstorms

Best Window Monday: 62°F, 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
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

Mon 62°Showers And ...
Tue 71°Showers And ...
Wed 82°Chance Showe...
Thu 85°Mostly Cloudy
Fri 87°Mostly Cloudy
Sat 89°Mostly Cloudy
Sun 90°Mostly Cloudy

San Antonio is in for a soggy Monday with showers and thunderstorms expected throughout the day, highs near 62°F, and a 90% chance of precipitation bringing three-quarters to one inch of rain to the area.

If you’ve got outdoor plans today—whether that’s a stroll along the River Walk, a visit to one of our beautiful parks, or anything at Lackland or Fort Sam—you’ll definitely want to reschedule or bring serious rain gear. The National Weather Service is highlighting a Level 1 Excessive Rainfall Risk for our area, with locally heavy rain up to 3 inches possible in some spots. This is the kind of day where flash flooding becomes a real concern, especially in our typical low-lying areas and near storm drains.

Timing and What to Expect

Showers and thunderstorms are already underway this overnight (through 6 AM CT) with a 70% chance of precipitation. Come Monday morning at 6 AM CT, expect the main event: widespread showers and thunderstorms will dominate from sunrise through evening. Winds will gust up to 25 mph from the east-northeast, so it’s not just rain—it’s wet and blustery. The good news? It’ll stay cool, so you won’t feel like you’re in a sauna while you’re stuck inside.

Monday night into Tuesday morning brings round two. Another 90% chance of precipitation with 1 to 2 inches of additional rainfall possible before things gradually taper off Tuesday afternoon. Tuesday itself will still be damp for the eastern two-thirds of San Antonio, though western areas (out toward the Rio Grande plains) may see some breaks and warmer temps in the upper 70s.

What to Do Today

Cancel the outdoor plans. Postpone yard work, grilling, and any fishing trips to the Hill Country. Instead, this is a perfect day to catch the Spurs taking on the Portland Trail Blazers at the Frost Bank Center on Wednesday night—but check the forecast before heading out for that one.

If you’re heading anywhere today, grab a packable rain jacket and a compact travel umbrella. If you’ve got kids, waterproof rain boots will keep them happy while splashing through puddles. And if you’re carrying your phone, a waterproof phone pouch is worth its weight in gold when you’re dodging downpours.

Dinner Suggestion

This is slow cooker weather. Throw together a hearty beef stew or a big pot of chili this morning, set it on low, and come home to comfort food. The aroma alone will make the rainy day feel cozy. A programmable slow cooker makes this effortless—just set it and forget it. Did you know you can order groceries on Amazon? Get everything you need for tonight’s dinner delivered straight to your door.

Looking Ahead

Wednesday brings near-normal temperatures and drier conditions—finally! Late week warms up nicely with a return to typical spring weather. But for today and tomorrow, stay weather-aware, keep an eye on flood-prone areas, and embrace the indoors. Check San Antonio weather updates regularly for any flash flood warnings.

Live Radar — San Antonio Area

Full interactive radar →
Live weather radar for San Antonio, TX

Radar data from the National Weather Service