3.74K viewsApril 18, 2022 0 wapiti816 April 18, 2022 0 Comments Is Mount Rainier open today? 1 Answer ActiveVotedNewestOldest 0 wapiti816 Posted April 18, 2022 0 Comments Yes, Mt. Rainier National Park is open year round with the exception of a few areas that will be inaccessible once snowfall has accumulated. The road from Longmire to Paradise is typically open all year. Login