^^ This ^^
Your only solid chance for smooth air is to land by noon, e.g.:
-- Day 1: KCMA to KBOI, depart 6am, (probably a fuel stop en-route), arrive before noon
-- Day 2 (or if, and only if, you're lucky, evening of Day 1): KBOI, depart 7am, arrive KGPI before noon
(and of course, no...