Persistent high pressure and clear skies are sustaining extreme heat across North Texas, with National Weather Service forecasts calling for sunny conditions and highs near 104–106°F on August 19 amid low humidity that permits rapid daytime warming. Recent observations show consecutive days of 102–106°F readings, consistent with late-summer climatology when Dallas averages near 96°F but frequently exceeds 100°F during multi-day heat events. Model consensus and current heat advisories support the market’s heaviest weighting on 104–105°F, while slight uncertainty in afternoon mixing or minor moisture return keeps smaller probabilities on the adjacent bins. Updated NWS guidance and any late-day observations will refine the final recorded high used for market resolution.