Is there no historical data at all? Even from yesterday (one day before current day) ?
No, Windy does not provide historical forecast data, even one day ago.
But if you select a weather station with Reported wind or Reported temperature in the menu, you get data of the 7 previous days at the selected weather station.
I bought premium to get historic data as advertised. How disappointing! Off to the next app!
Windy is free. There is no premium (paid) version.
Make sure you are using official Windy apps with the red logo.