Although Latinx parents' perceptions of the climate of their children's schools may play a role in their children's academic adjustment, research examining this idea is sparse. Every 2 years beginning when children were in fifth grade (M_age  = 10.86 years) until they were in 11th grade, Mexican-origin mothers (N = 674) reported on their perceptions of the climate of their children's schools; information on children's academic adjustment was collected from children and mothers. Multilevel modeling indicated that when mothers had more positive school climate perceptions, their children valued school more and performed better in school, but did not necessarily hold higher educational expectations. The findings suggest the importance of schools in creating welcoming environments for Mexican-origin parents.