Weather Ahead: Trip Forecast
Your calendar, as a weather timeline.
Weather apps tell you about one place. Your week isn't in one place. Weather Ahead reads the events already in your Apple Calendar and turns every located one into a stop on a single scrollable timeline — day by day, city by city, each with its own forecast. No account, no servers, and open source so you can check that.
Screenshots




What it does
One timeline
Days are sections, places are rows. Leave one city and land in another the same day and that day shows both, each with its own conditions and high/low.
Anchored on today
It opens on today, which always begins with the weather where you actually are. Scroll weeks ahead and one tap brings you home.
Honest about the horizon
Ten days get real forecasts. Beyond that, trips group by month and show typical climate instead — turning into a true forecast as the date approaches. Nothing pretends to be a forecast when it isn't.
The full picture, one tap down
Hourly temperature charts with an Actual/Feels-Like toggle, precipitation, wind and gusts, pressure and trend, dew point, UV, visibility, sunrise, sunset, moon phase — and any active alerts up top.
Private by design
Your events are read on-device and never leave it. Only coordinates and dates reach Apple's WeatherKit, exactly as any weather app does. No analytics, no third-party SDKs, location entirely optional.
Details
- Version
- 1.0
- Updated
- 30 July 2026
- Price
- Free
- Platform
- iPhone & iPad
- Requires
- iOS 26
- Size
- 3 MB
- Category
- Weather
- Languages
- EN
Questions
Does it send my calendar anywhere?
No. Events are read on-device only. Event titles, calendars and identity never leave your phone — only coordinates and dates go to Apple for the forecast itself.
Do I have to grant location access?
No. It is used only for the "where you are now" entry at the top of today. Everything else works without it.
Can I read the source?
Yes — it's MIT licensed on GitHub, so every network call the app makes is there to inspect.