What are "hills" in the basic forecast

Flychi777

I've tried to work out what the "hills" in the forecast are but without any form of online manual I'm struggling!

It can't be temperature since I have a local forecast showing a "hill" dropping to zero but the overnight low temperature isn't 0⁰C.
Don't think it can wind since that's displayed in the coloured bar underneath.
Maybe cloud cover? But then the aerogram shows that so why repeat the info?

Does anyone have any ideas what they are?

Thanks

idefix37

@Flychi777
These curves show the expected temperature evolution.

Flychi777

@idefix37 Thanks.

Personally that seems a little pointless without any scale to reference against.

I have several locations favourited and the up/down (ie day/night) cycle looks the same for every location despite one being 30⁰C and another 6⁰C.

I guess the scale is relative to the location but without a base/0⁰C line it's just graphic fluff. It could be much more informative.

idefix37

@Flychi777
The scale is shown by the temperature values(maximum and minimum temperature). But the minimum temperature (Tn) in the 5 days graph is missing, it would help to “read” this graph.

Your screenshot

At least in your example it shows a big gap between max temp (Tx) and min temp (Tn) with a clear sky ar night on Wednesday and a smaller gap on Friday with cloudy / raining conditions.