Recent National Weather Service and private model guidance indicate Denver's overnight low on September 8 will hinge on the timing and coverage of isolated thunderstorms plus residual cloud cover, which limit radiational cooling under light southerly flow. Current runs cluster minimum temperatures near 59–61 °F, warmer than the 1991–2020 climatological average of 52 °F, reflecting a persistent warm airmass with dew points in the mid-50s that reduces the diurnal range. Minor shifts in storm timing or boundary-layer mixing can easily move the realized low by 3–5 °F, explaining the tight clustering of market probabilities across the 56–65 °F bins and the modest 15.5 % chance assigned to 55 °F or below. Updated 00Z model suites and evening observations on September 7 will provide the next key data points for refining these ranges.