[@TheForgottenArc][@prettydrops]: 

Okay, I've pushed the story along by one hour. It is now night time. 

With the introduction of the Dark (Alolan) Rattata, that is all the Pokemon your characters will be able to find in the forest at night. There is one more Pokemon that is available during the daytime. 

Any other Pokemon in the forest are too good at hiding to be found by your characters yet.