Start with the basics
If you are new to chart-based forecasting, start with the weather chart guide. It explains how continuous forecast timelines differ from daily icon grids and why they are easier to use for decisions that depend on timing.
If you want to understand the data layer underneath Weathercaster and other Apple platform weather apps, the WeatherKit guide covers the forecast sources, platform support, privacy model, and developer access patterns.
Best starting points
- Read the weather chart guide if you want to understand forecast timing and visual interpretation.
- Read the WeatherKit guide if you want to understand forecast sources, APIs, and attribution.
- Use the comparison and use-case pages after that if you are deciding which weather app fits your workflow.
