Recent National Weather Service and model guidance indicate Denver's overnight low on September 5 will likely settle in the lower-to-mid 60s°F under partly cloudy skies, light variable winds, and a stable high-pressure regime that limits radiative cooling. This places the outcome near the historical average low of roughly 54°F but well above the all-time record minimum of 43°F. Subtle differences among forecast runs hinge on the exact timing and extent of any thin cloud cover or downslope warming, which can shift the minimum by a few degrees. With market-implied probabilities tightly clustered across bins from the upper 50s through the mid-70s, traders appear to price in meaningful remaining uncertainty from evolving model consensus and local microclimate effects ahead of final observations.