This line chart displays temperature readings over time, with each data point marked by a circle and connected by a smooth path. The visualization uses D3 v5 scales and the `line()` generator to map timestamp and temperature values, while React components render the SVG axes, ticks, and labels. Data is loaded from a CSV file using `d3.csv` and parsed into JavaScript Date objects. The chart includes formatted week-day labels on the x-axis and a rotated "Temperature" axis label.