Monday morning, May 25, 2026, Austin woke up near 70°F under mostly clear skies as Memorial Day got underway. Expect a warm holiday afternoon, with highs topping out around 90 to 91°F, light east-northeast breezes, and humidity that will feel sticky but still manageable for shorter stretches outside.
Most neighborhoods should hang onto mostly sunny skies through early afternoon, with only a slight chance of an isolated shower or thunderstorm after 1 p.m.; the official chance of precipitation sits around 20 to 24 percent. Hourly forecasts show temperatures climbing from the upper 60s this morning into the upper 80s and low 90s by late afternoon, so if you are planning to grill, hike, or hit the water, keep plenty of shade and hydration in the mix.
Midweek Threat
The quiet setup starts to break down Tuesday night into Wednesday, May 26-27, 2026, when an approaching upper-level system is expected to fire up storms across central and south-central Texas. According to NWS Austin/San Antonio, showers and thunderstorms are likely Tuesday night, with a high probability of locally heavy rain that could produce isolated flash flooding. Forecasters are also monitoring a smaller area with heightened severe-storm potential, mainly across the Rio Grande Plains. If storms organize into slow-moving clusters, brief but intense downpours could quickly flood low-lying roads and creeks.
If you have plans Tuesday evening, it is a good idea to move them indoors or at least keep a close eye on the radar and local alerts. For background and timing, see our earlier coverage of the midweek storm threat. Stay weather-aware, avoid driving through standing water, and have a simple backup plan ready in case slow-moving storms drop heavy rain where you are.
