* Weekend: It's Saturday or Sunday.
* Holiday: A national, state, or local holiday is being observed (e.g., Christmas, Thanksgiving, a teacher in-service day).
* Emergency closure: Severe weather (snow, ice, flooding, hurricane), a power outage, or other unforeseen circumstances have made the school unsafe or inaccessible.
* Planned closure: The school may have a pre-planned closure for professional development, construction, or other reasons.
To know for sure *why* there's no school today, you'd need to check your school's website, social media, or local news.