I've been roughly the same weight since my high school years. In fact, I was in my high 140s for my senior year HS T&F season and 13 years later, I actually still tend to top out in the high 140s and even drop down into the high 130s or low 140s when in peak condition.
Is it possible? Depending on several factors, yes. Is it advisable/desirable? Depends on the individual.