Sundial – a new way to look at a weather forecast
Novel radial weather UI, but Apple Weather and Carrot already do forecasts better.

Weather app removing all numbers when DarkSky already proved visual-first forecasts work.
General users wanting intuitive weather visualization without parsing numbers
DarkSky · MerrySky · Weather Underground
- Compare current/future conditions with weather you experienced the day before
- Understand/compare how conditions change through out the day
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WeatherSense started out as a hand-coded project: https://github.com/Leftium/weather-sense
- Would you consider this project a good example of how AI can be used to enhance coding?
- Claude helped implement many new features from the backlog, like 60-min precipitation forecasts
- Claude helped add some whimsical features: I only considered adding because AI made it cheap to experiment:
* "Calm mode:" truly emphasizes how WeatherSense doesn't need numbers by removing/replacing all numbers from UI
* Dynamic background color based on sun angle
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Major inspirations:
- DarkSky
- MerrySky (https://merrysky.net)
Novel radial weather UI, but Apple Weather and Carrot already do forecasts better.
Beating NWS forecasts with a 22M model on home sensor data is genuinely impressive.
Ghost Line feature overlays past forecasts on reality to show model bias.
GIF-based forecasts are fun, but Dark Sky, Weather Underground already solved weather apps.
Multi-model ensemble + ML bias correction beats single-API weather apps.
Pixel-perfect Windows 95 UI on iOS, but it's just Open-Meteo with a skin.