The 2018–19 Mountain West Conference men's basketball season began with practices in October 2018, followed by the start of the 2018–19 NCAA Division I men's basketball season in November.
Conference play begins in January 2019 and concludes in February 2019.
On February 26, 2018, Colorado State coach Larry Eustachy resigned after being placed on administrative leave.
[2] On March 12, 2018, Fresno State head coach Rodney Terry left Fresno State to become head coach at UTEP.
[4][5] On March 11, 2018, Utah State head coach Tim Duryea was fired after three seasons.