Thanks! All is clear now! I supposed the forecast was fresh, the mistake was only in one place, concerning reference time...

Best posts made by matijamet
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RE: A difference between reference time and update time
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RE: A difference between reference time and update time
@Korina ,
if you look on the "reference time" for NEMS, for example hier, https://www.windy.com/multimodel/44.107/15.326?44.108,14.248,8
you'll see for METEOBLUE (NEMS) :Updated: 2020-02-27T07:27:42000Z
Reference time: 2020-02-25Or, I don't understand something?
Thanks!