Current National Weather Service and NOAA ensemble guidance for Houston on July 18 favors a daily maximum in the low-to-mid 90s under partly cloudy skies, light southerly flow, and moderate humidity, positioning the 92–93 °F bin as the market leader at 38.5 %. Typical July climatology at Intercontinental Airport shows a 1991–2020 normal high of 95 °F, with recent model runs reflecting suppressed heat advection from upstream ridging rather than a strong heat dome. Ensemble spread remains modest this close to the event, limiting upside risk above 96 °F while capping downside probability below 90 °F. Final forecast adjustments from the afternoon model cycle and any late-day convection could still shift the exact bin before resolution.