**Persistent high-pressure ridging and southerly advection of warm, dry air are sustaining extreme heat across central Texas, with National Weather Service and ensemble model guidance pointing to a Tuesday high of 102–105°F under mostly clear skies.** South winds of 5–10 mph limit boundary-layer mixing while abundant August sunshine drives strong daytime heating over the Edwards Plateau region. This places the market’s two leading bins—102–103°F and 104–105°F—nearly tied, reflecting minor differences in peak insolation timing and local wind gusts that can shift the daily maximum by a degree or two. Historical late-August normals near 96°F underscore how the current ridge has elevated temperatures well above climatology, with limited model spread and no incoming frontal boundary keeping resolution uncertainty low until official observations are recorded.