In this activity, students are challenged to predict the next day's weather based on cloud observations, prevailing winds, and barometric measurements over a period of several days. The activity can be done as guided or open-ended inquiry and serves... (View More) as an authentic assessment to conclude a unit on weather. Resources needed to conduct this activity include weather instruments, some of which can be constructed from household materials. The resource includes background information, a pre-activity inquiry exploration for students, teaching tips and questions to guide student discussion. This is chapter 16 of Meteorology: An Educator's Resource for Inquiry-Based Learning for Grades 5-9. The guide includes a discussion of learning science, the use of inquiry in the classroom, instructions for making simple weather instruments, and more than 20 weather investigations ranging from teacher-centered to guided and open inquiry investigations. (View Less)