I designed https://weather-sense.leftium.com to make it easier to visualize both the day and week.

Even without any text labels, you should be able to get a feel for what the weather is and how it will change:

- Hourly plots like Dark Sky, with everything (temperature, rain, AQI, weather conditions) in a single plot.

- The change in temperature visualized with both color and space. Space is obvious (higher -> hotter); color ranges from red for hottest to blue for coldest. All the visible plots share the same color-temperature mapping. So the gradient block to the left shows both the temperature range for that day as well as how it compares to other days.

- Finally, there is a weekly overview at the top.