This multi-age integrated teaching unit on weather was developed by 19 rural teachers (grades K-8) from 12 Gallatin County (Montana) districts to associate all school subjects with a common theme, promote teaching efficiency by focusing on more than one subject at the same time, and increase student excitement. Topics explored by each grade level are seasons (grades K-1), effects of the weather on us (grade 2), precipitation (grade 3), clouds (grade 4), weather recording-forecasting (grade 5), water (grade 6), climates and global effects (grade 7), and occupations (grade 8). Core activities are outlined for each grade level in reading/language arts, mathematics, science, social studies, art, music, and physical education. The lesson plans consist of a general focus statement, specific behavioral objectives, designated classroom activities, lists of materials needed, and a teacher log section. Lists of vocabulary words are included in each unit with some coded to a key for word attack through structural analysis. Accompanying each unit is a list of available resources, both material and human. Evaluation worksheets to be utilized when assessing student performance on specific objectives are included. (NEC)