**Official National Weather Service forecasts for Dallas on August 25, 2026, center on a high near 105°F under mostly sunny skies, south winds of 5–10 mph, and low humidity, aligning closely with the market’s leading 104–105°F bin (51.5% implied probability).** This reflects trader consensus on the primary drivers: a lingering heat dome with high pressure promoting subsidence and clear conditions, combined with southerly flow advecting warm air from the Gulf and plains. Recent model runs and observations show minimal cooling from the prior days’ record highs (108–109°F on August 23–24 at DFW), with heat indices potentially reaching 107–110°F even as actual air temperatures peak around the forecast value. Secondary outcomes like 102–103°F (26.5%) or 106–107°F (15.5%) capture residual uncertainty from slight model spread in maximum temperatures and local urban heat-island effects. An extreme heat warning remains active, underscoring the pattern’s persistence, though a weak front may introduce minor afternoon cloud cover or isolated storms later in the week without substantially altering today’s maximum. Traders are weighting the NWS consensus heavily, as historical analogs and current steering patterns support little deviation from the 104–105°F range.