CycleWeather is now open source under the MIT License.
Built as an experiment in agentic AI-assisted iOS development — no prior Swift, Xcode, or GitHub experience — and shipped to the App Store in four days using Claude Code.
What's here:
- SwiftUI cycling weather app for iOS 17.0+
- WeatherKit integration (primary weather data, no API key required)
- Open-Meteo AQI and solar radiation data (no API key required)
- Cycling-specific tactical weather alert engine with three tiers
- Solar Heat Gain Index (SHGI) calculated from direct/diffuse radiation
- NOAA/NWS precipitation radar overlay via Iowa Environmental Mesonet (no API key)
- Saved locations carousel (up to 10 locations)
- Minute-by-minute precipitation forecast pane
- URL scheme-based alternate icon unlock system
Before you build a fork:
Read NOTICE — WeatherKit requires your own Apple Developer account and entitlement. Open-Meteo requires attribution per CC BY 4.0.
The story:
See DEVELOPMENT.md for how this was actually built.