Recent National Weather Service forecasts and ensemble models indicate mostly sunny skies and light southerly winds will drive Denver's October 5 high into the mid-to-upper 80s, with implied probabilities favoring 86-87°F or 88-89°F outcomes. Clear conditions and downslope warming enhance daytime heating, though minor differences in cloud timing or wind speed among model runs could shift the peak by a degree or two. These short-range projections carry lower uncertainty than longer outlooks, but traders monitor the next NWS update and high-resolution model cycles for any adjustments ahead of resolution. Historical October averages near 71°F underscore the anomalous warmth currently priced in.