From Gaucho Software:
Seasonality is an application that takes weather monitoring to a whole new level with weather forecasts, satellite images, astronomical information, a weather journal, and much more. View informative icons demonstrating what weather is coming your way over the next 5-7 days. Use satellite and radar images to check out cloud cover and where it is raining or snowing. Compare this month's weather conditions to last month's, or even last year's. Keep track of just your hometown or multiple cities around the globe.
What's new in this version:
Fixed a Snow Leopard compatibility issue.