Anyone else seeing their accuracy for the next day listed as 0%?
I’m not seeing the next day at all, though I don’t think they would be wrong 
My guess is this is because the site tracks from JST time and if that time hasn’t happened yet for you locally its 0%
If this is the case then I would recommend others to go into their settings and change the time-zone to their actual one so nothing gets too messed up in the future.