**Trader sentiment for Denver’s lowest temperature on August 28, 2026, centers on the 64–69 °F range, with the 64–65 °F and 66–67 °F bins each at 33.5 % and 68–69 °F at 27.5 %.** These probabilities reflect late-August climatology at Denver’s ~5,280 ft elevation, where clear or partly cloudy skies and light winds promote strong nocturnal radiative cooling after daytime highs near 93–95 °F. Official forecasts from the National Weather Service and ensemble guidance consistently project an overnight minimum in the low-to-mid 60s, driven by dew points near 50 °F and minimal cloud cover that allows efficient long-wave heat loss. The tight clustering around 64–67 °F stems from small but consequential differences in model guidance on exact timing of the minimum (typically just before sunrise), local station variations between Denver International Airport and downtown sensors, and uncertainty over any residual evening clouds or weak southeasterly flow that could modestly limit cooling. Lower-probability outcomes below 62 °F would require stronger radiative conditions or drier air than currently expected, while warmer readings above 69 °F would need increased low-level moisture or wind mixing—scenarios not favored by current observations or short-range models. As the night progresses, updated observational data from the official reporting station will narrow the distribution before market resolution.