A time series visualization plots temperature readings over a week, using an SVG line chart with circular markers for each data point. Built with React and D3 v5, it employs `scaleTime` and `scaleLinear` to map timestamp and temperature values, while `timeFormat` renders abbreviated weekday labels on the x-axis. The chart loads CSV data from a remote URL through `d3.csv` and includes custom axis components that generate gridlines and ticks. Hovering over a circle reveals a native tooltip showing the formatted date.