**Official forecasts from the National Weather Service and other models indicate a high near 100–101°F for Dallas on August 27, 2026, under mostly sunny skies with light northerly winds and heat indices up to 109°F.** This follows an intense late-August heat dome that produced multiple 105–109°F days earlier in the week, pushing DFW toward one of its hottest Augusts on record. A weak frontal passage is introducing slightly cooler northerly flow, moderating the peak compared with the 102–104°F readings on August 26. Ensemble guidance shows limited spread around the 99–101°F range, with only modest chances of afternoon convection that would cap temperatures if realized. Historical climatology places the late-August average high near 95°F, underscoring the ongoing positive anomaly even as the extreme heat eases modestly. Trader consensus, reflected in the 45% implied probability for 98–99°F and 23.5% for 96–97°F, aligns with this expected slight cooldown while assigning lower weight to the upper 100–101°F or 102°F+ outcomes. The market is pricing in the most likely resolution near the lower end of the official forecast envelope, with resolution hinging on the exact maximum observed at official Dallas stations.