I love the idea of the new extended forecast for additional 4 days extra as it can give a pretty rough idea of what could be expected.
However the times in the forecast don't align with the timeline above (since the additional days have smaller time resolution, while the timeline bar still keeps the constant progress of values). Also, when I click at the timeline, the weather state animation corresponds to the time selected in the timeline, but not the weather displayed below.
As you can see in the picture below, the times in the green rectangle don't align correctly and as shown with the red arrow, the wind direction is different and corresponds to a time 8:00 of day before:
The version details where the bug is reproducible are:
Built: 2019-06-05, 08:58
Your browser: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.131 Safari/537.36
WebGL particles: running
I know this feature is here new now, so it's expected to have some bugs in this area. Anyway, I like this project, so all the best and keep up the good work on it :o)