Sad Weather Report

This morning's weather report mentioned that it will be warm today, so if you're packing a lunch to take on your visit to the ancestral graves, please be careful to avoid food poisoning.

Today is the 13th of August:

On the 13th, chouchin are lit inside houses, and people go to their family's graves to call their ancestors' spirits back home.

The grocery store yesterday had special sections set up with pre-packaged fruit, flowers and rice sweets to offer to one's ancestors.

When will this not be the norm here?