Cooler air advection behind a cold front, combined with widespread rain and northeast winds of 10-15 mph, is driving trader emphasis on the 37°F-or-below bin at 50% implied probability for Denver’s October 14 low. Official National Weather Service guidance and model consensus show daytime highs limited to the upper 40s or low 50s under overcast skies, with the minimum expected overnight or at dawn as temperatures fall into the mid- to upper 30s. This marks a sharp departure from the preceding record warmth, with the frontal passage and associated moisture enhancing radiational cooling once precipitation ends. Updated model runs and NWS briefings through the morning will refine whether the low settles near 35°F or holds a few degrees higher.