Forecast ensembles from major models indicate Austin highs on July 30 will most likely fall between 98–101°F, aligning with the market’s heaviest weighting on those bins amid persistent summer ridging and above-average July climatology near 96–100°F. Recent guidance shows slight model spread from varying moisture and cloud cover, which could suppress or allow peaks near 102–105°F if skies clear more than expected. Key variables include steering flow strength, boundary-layer mixing, and localized urban heat effects; any late adjustment in National Weather Service or ECMWF runs could shift implied probabilities before resolution. Traders weigh these factors against historical 100°F frequency in late July when assessing tail risks.