Trader consensus on Polymarket heavily favors highs of 80-81°F (32%) and 78-79°F (27%), reflecting National Weather Service guidance for Denver's May 16 forecast amid a strengthening upper-level ridge over the Four Corners region, which promotes subsidence warming and mostly sunny skies conducive to robust diurnal heating. Recent model runs from GFS and ECMWF ensembles show convergence on upper 70s to low 80s peaks—above the mid-May climatological normal of 73°F—following early May's heavy snow events that cooled the Front Range but yielded to this transitional warm-up. Differentiating factors include potential afternoon cumulus cloud development or isolated thunderstorms capping temperatures at 78-79°F versus clearer conditions pushing to 82°F+, with boundary layer mixing and soil moisture recovery from prior precipitation adding uncertainty; watch the evening NWS Boulder forecast discussion for refined guidance.