This visualization displays temperature readings over time, using SVG circles to represent individual data points across a week-long period. The scatterplot employs D3.js v5 for scales and formatting, with React components rendering axes and marks. The time-based x-axis uses `d3.scaleTime()` with day-of-week labels, while the temperature y-axis uses `d3.scaleLinear()`. Data comes from a CSV file fetched via `d3.csv()` and parsed into JavaScript Date objects, with tooltips showing the formatted time on hover.