Recent National Weather Service and model guidance indicate substantial uncertainty in Denver’s overnight low for October 15, with forecasts ranging from the low 30s to low 40s. A cold front and northerly winds are expected to clear skies after daytime rain, enabling radiational cooling under reduced cloud cover, yet timing of clearing and residual mixing from breezy conditions (gusts to 20–45 mph) create notable spread across ensemble runs. Official point forecasts highlight Thursday night lows near 32 °F once skies clear, while some guidance retains more cloud cover or warmer advection, keeping minima in the upper 30s. This divergence directly splits trader sentiment between sub-35 °F and higher-bucket outcomes, as small shifts in dewpoint, wind, or sky cover can move the daily minimum across resolution thresholds. Updated model runs and NWS forecast discussions will likely tighten probabilities ahead of the overnight period.