Official forecasts from the National Weather Service and ensemble models indicate a Sunday high near 90–94°F in Denver, with afternoon thunderstorm chances of 30–40% introducing key uncertainty. Moist southeasterly flow and surface heating will drive convective instability, where cloud cover, evaporative cooling from rain, and variable timing of storms could cap peaks below 92°F or allow brief clearing to push readings into the mid-90s. Recent warm, moist conditions have elevated baseline instability compared to climatological norms for late August, while model spreads in boundary-layer moisture and steering winds explain the tight clustering around 90–93°F outcomes. Updated NWS briefings and afternoon model runs will refine these variables ahead of market resolution.