Persistent high pressure over the southern Plains, combined with clear skies and southerly flow, is driving strong daytime heating across north Texas, with National Weather Service forecasts calling for a high near 106°F in Dallas today under an active Extreme Heat Warning. Low humidity and minimal cloud cover allow efficient solar insolation and surface warming, consistent with late-summer climatology that favors maxima in the mid-100s when subsidence dominates. Recent model runs and observations have kept the 104–105°F bin as the market leader at 61.5% implied probability, while the modest 16.5% on 106–107°F reflects uncertainty around exact peak timing and any late-day mixing. Traders are weighting official guidance heavily given the short resolution window.