Recent National Weather Service and model guidance indicate a shift to cooler, more unstable conditions over Denver, with scattered thunderstorms expected to limit daytime heating on September 15 and produce a high near 75°F. This follows several days of 85–93°F readings driven by southerly flow, as an approaching trough and associated frontal boundary introduce northerly winds and increased cloud cover that suppress maximum temperatures. Historical climatology places the September 15 average high at 79°F, so the current setup represents a notable negative departure. Traders appear to weigh the consensus forecast against potential model variability in storm timing and coverage, which could allow brief clearing and slightly higher readings, keeping the 84°F+ outcome at 50% implied probability while supporting the cluster of 70–77°F bins near 20% each. Updated model runs and NWS briefings over the next 48 hours will provide the next key data points for resolution.