Know if today is warmer or colder than yesterday — at a glance.
When you check the weather and see "18°C", your brain has to work:
- What does that actually mean?
- Is that warm? Cold?
- What should I wear?
WeatherDiff shows temperature as a difference from yesterday:
+5° warmer than yesterday
High: -3° colder
☔ Rain likely (65%)
When you know it's colder than yesterday, you instantly remember what you wore and adjust accordingly. No mental math required.
- Fetches feels-like temperature from Open-Meteo (free, no API key)
- Compares current hour to the same time yesterday
- Shows the difference with rain probability
- Install the Shortcut
- Run it manually, or set up a morning automation:
- Shortcuts → Automations → Time of Day → 7:00 AM
- Run Shortcut → WeatherDiff
- Toggle OFF "Ask Before Running"
🧪 POC Phase — Validating the concept before building an iOS app with widgets.
Google's weather app used to have this feature — showing "5° colder than yesterday" — but quietly removed it years ago. No current weather app focuses on relative temperature. WeatherDiff fills that gap.
MIT — Free and open source.
Weather data provided by Open-Meteo
