This is the rarest of all for an entire story/novel to be written in. However, there are often sections that require this.
Rusty would be going to visit her brother in Washington, D.C. for a week. Then she would be going to the west to visit some family. She couldn’t be more excited at the prospect of traveling and seeing everything. Rusty would go to the national monument and the Lincoln memorial, maybe she would even stop by and see the White House. She wondered if the president would be around, maybe she could catch a glimpse.
Example done. *sigh*
Yes, future tense is necessary, but I do only suggest small doses of it! =P