Current National Weather Service forecasts for Houston point to overnight lows near 80°F on August 25, reflecting a dominant subtropical ridge and warm, moist air mass that limits radiational cooling. High dew points and southerly flow sustain elevated minimum temperatures, consistent with late-summer climatology where average lows hover around 77°F and rarely dip below 72°F. Recent model consensus shows minimal influence from any lingering tropical moisture or weak disturbances, keeping the range centered on upper 70s to low 80s. Traders assign roughly equal weight to the 78–81°F bins because ensemble guidance remains tightly clustered, with resolution hinging on the exact minimum reported by official stations before sunrise. Updated NWS and NOAA model runs over the next 24 hours will provide the clearest near-term signal.