The Apple Watch, and iOS 27

The Apple Watch app has been rebuilt, and the complications are the reason. Trio puts three big gauges of your choice under a location, condition or high/low header, and Smart Trio picks the three for you and changes them through the day — so a hot afternoon reads Temperature, Sunset and Dew Point rather than three flavours of temperature. Sunrise & Sunset gets its own complication, a large time over AM/PM in gold and rose, timed in the Smart Stack around each event.

Every gauge is bigger, uses the app's own icons, and keeps one clear wind direction marker. On faces that tint their complications the gauges hold their colours, with a marker set apart from the ring so a tinted face still reads at a glance.

You no longer have to reach for your phone to change any of it. Settings for every complication, the watch app layout and units now live on the watch itself, and changes travel back to the iPhone in the background. On the iPhone, the Apple Watch screen is a gallery: Trio presets drawn with the real gauges, every picker a grid of gauges rendered for real, and a full preview pinned above each picker that updates as you tap.

One thing to expect after updating: complications you have placed on your faces need adding once more. That is a one-time effect of the new way watch apps are built, and both the watch and the iPhone show you the steps until one is back.

This release is the one that meets iOS 27, watchOS 27, macOS 27 and tvOS 27. On iOS 27 a tall extra large widget follows the app's own layout with three data points you pick. On macOS 27 Forecast Bar is built with the new release tools, so its windows, menus and controls follow the system, including the menu bar overflow and keyboard controls.

Current Weather comes in an extra large size on both — 24 hours over two rows, or 12 hours with 10 days — and the extra large daily list can switch to compact rows carrying the day, its icon and a bar showing where that day sits against the rest of the week, which fits nine days where six used to go. Widget borders are even on every side at every size, and hold steady while a widget redraws.

The radar's overlays are now one button with independent switches — weather warnings, lightning, storm cells, cameras and road information — while the Layers picker goes on choosing the main weather map. Apple TV gets the same idea in its own form: warnings, lightning, storm cells and weather outlooks each switch on and off on their own.

Behind that button, Gold on iPhone and iPad and Pro on the Mac open up DOT-reported road conditions and weather hazards, measured road and air temperatures, local storm reports, river gauges and fire perimeters. Road cameras now cover twelve states — Alabama, Arizona, California, Delaware, Georgia, Louisiana, Maryland, Missouri, North Carolina, Nevada, Ohio and Washington — with live video where the agency offers it, snapshots where it does not, and a grid of nearby views. Coverage varies by agency.