Austin wakes up clear and calm on Tuesday, May 12, 2026, with temperatures sitting in the mid‑60s under dry skies. Sunshine should carry the high to about 86°F this afternoon, a sweet spot for getting outside before the heat really gears up.
What To Expect This Week
A stubborn ridge of high pressure is set to keep South Central Texas dry through midweek. Forecasters are calling for highs near 86°F today, around 90°F on Wednesday, May 13, 2026, and close to 92°F on Thursday, May 14, 2026. Winds stay light through Wednesday, then start to flex a bit late Thursday into Friday, with gusts up to 25 mph possible in more exposed spots and over ridgelines.
Moisture starts creeping back late in the weekend, and forecasters are already highlighting a better shot at scattered storms Sunday night. Monday, May 18, 2026, is currently pegged at about a 45% chance for showers and thunderstorms, along with higher heat index values that will make it feel hotter than the thermometer suggests, according to the National Weather Service.
Heat, Humidity and Local Resources
By the weekend, late afternoon hours will feel several degrees warmer than the actual air temperature. Guidance has the hottest pockets around the Rio Grande Plains pushing roughly 100–108°F on Sunday into Monday, while much of South Central Texas feels more like the upper‑90s to about 104°F. In practical terms, morning and evening will be the smarter windows for workouts, dog walks, and yard work, with some flexibility in case storms flare up Sunday night.
For anyone who runs hot just thinking about those numbers, the City of Austin reminds residents that parks and public libraries double as cooling centers during normal hours, and it offers a set of local cooling resources for hotter stretches, per the City of Austin.
Planning Notes
This story is an update to our early May coverage, with the main tweaks involving the bump in late week humidity and the higher weekend heat index risk. For a bit more context on how the pattern is evolving, check our earlier heat-up preview.
If you have outdoor plans later this week or over the weekend, aim for cooler hours, lock in shade and plenty of water, and keep an eye on updated forecasts in case storm timing shifts.
