Choose WeatherAI if
You want to retain Apple Weather/WeatherKit as an option while gaining other forecast providers, WeatherAI Forecast, technical radar, configurable rules, and broader hazard monitoring.
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Apple's integration, Acme's lineage, and WeatherAI's depth
What should replace Dark Sky in 2026?
Apple documents Dark Sky's features as integrated into Apple Weather, and Dark Sky's creators introduced Acme Weather in February 2026. WeatherAI takes a different path: it can use Apple Weather data through WeatherKit, switch forecast sources, and add AI questions, advanced radar, custom rules, and broader weather tools.
Reviewed Official sources linked belowNo paid placement
The short answer
Apple Weather is built in by default and carries the Dark Sky features Apple documents. Acme Weather is a separate subscription app from Dark Sky's creators. WeatherAI is the option that keeps Apple Weather data available through WeatherKit while adding forecast-source choice, a multi-model forecast, conversational help, and specialist weather products.
Where Apple Weather is stronger
Apple Weather is built in by default on supported devices, Apple Watch included, and presents Apple's own interface for the Dark Sky features Apple documents.
At a glance
WeatherAI, Apple Weather, and the Dark Sky legacy
This table compares WeatherAI's current shipped product baseline with the competitor's current first-party product descriptions and support documentation. Availability can vary by region, device, and subscription.
| Topic | WeatherAI | Dark Sky, Apple Weather, and Acme Weather |
|---|---|---|
| Availability | A current app for iPhone, iPad, Mac, Apple Watch, and Apple Vision Pro, available as a free download with optional subscriptions. | Dark Sky is no longer available as a standalone app. Apple says its major features were integrated into Apple Weather. |
| Connection to Apple Weather | Can use Apple Weather data through WeatherKit as its forecast source, while presenting it in WeatherAI's own interface and adding separate tools. | Apple documents Dark Sky's features as integrated into Apple Weather, which provides Apple's complete first-party presentation. |
| Dark Sky creators today | WeatherAI is an independent app, not a product from Dark Sky's creators. It is free to download, with optional Standard and Pro subscriptions. | Dark Sky's creators introduced Acme Weather in February 2026 as a separate app built around its own forecasts, alternate predictions, maps, community reports, and notifications that include down-to-the-minute rain warnings. It is free for two weeks and then requires a $25 per year subscription. |
| Forecast choice | Apple Weather/WeatherKit, WeatherAI's multi-model forecast, and the National Weather Service's official U.S. forecast are free source choices; XWeather, OpenWeather, and Open-Meteo are available with Pro. | Apple Weather does not expose WeatherAI Forecast, XWeather, or OpenWeather as selectable sources. Acme Weather is a separate forecast service rather than a source inside Apple Weather. |
| Short-term precipitation | Provides next-hour minute-by-minute precipitation where supported; availability varies by source and region. | Dark Sky was known for next-hour precipitation. Apple Weather now provides down-to-the-minute next-hour forecasts, maps, and notifications in supported regions. |
| Forecast experience | A customizable, denser home experience with forecasts, alerts, radar, summaries, and optional specialist weather and environmental sections. | Dark Sky's appeal was a focused immediate forecast. Apple Weather carries the feature integration Apple documents, though its interface is not identical to Dark Sky's. |
| Radar and maps | Basic maps plus regional sources and optional NEXRAD, MRMS, ECCC radar, satellite, lightning, model, storm-report, and outlook products. | Dark Sky offered high-resolution weather maps. Apple Weather now provides precipitation, temperature, air-quality, and wind overlays, with regional limitations. |
| Notifications | Official alerts in supported regions plus optional custom condition rules, outlook-risk, discussion, earthquake, and daily-summary notifications. | Dark Sky emphasized precipitation alerts. Apple Weather supports next-hour precipitation and government-issued severe-weather notifications in supported regions, including opt-in iOS 26 severe alerts for suggested locations based on Significant Locations & Routes. |
| Weather questions | Dedicated AI chat for forecast and planning questions and supported alerts, discussions, aviation observations, and environmental data. | Dark Sky was not conversational. Apple has no dedicated chat inside Weather, but it supports system-level Siri weather questions and follow-ups. |
| Platforms and system integration | Available on iPhone, iPad, Mac, Apple Watch, and Apple Vision Pro, with weather widgets, Apple Watch complications, and Siri and Shortcuts actions. | Apple Weather is built in by default on supported Apple devices and includes an Apple Watch app. Acme Weather currently supports iPhone and Apple Watch in supported storefronts. |
Beyond the checklist
The differences that matter in practice
Apple documents the feature integration
Apple explicitly says Dark Sky features were integrated into Apple Weather, including hyperlocal forecasts, next-hour precipitation, maps, and notifications.
WeatherAI can still use that Apple forecast data
Selecting Apple Weather in WeatherAI uses WeatherKit as the core forecast source. You do not need to abandon Apple weather data to use WeatherAI's broader workflow.
Acme Weather comes from Dark Sky's creators
Introduced in February 2026, Acme is a separate app centered on its own forecasts, alternate predictions, community reports, maps, and notifications. It is neither Apple Weather nor WeatherAI, and it is subscription-only after a two-week trial.
WeatherAI is an expansion, not a Dark Sky clone
Its reason to exist for a former Dark Sky user is provider choice, a multi-model WeatherAI forecast, questions, technical products, custom rules, and additional hazards—not a recreation of Dark Sky's interface.
Learn moreWhere WeatherAI has the edge
WeatherAI is the better fit when you want
Keep Apple Weather as the forecast source
WeatherAI can load the forecast through WeatherKit and layer its own interface and tools around it.
Try a different forecast without changing apps
Switch to WeatherAI Forecast's multi-model blend or the National Weather Service's official U.S. forecast, or use XWeather, OpenWeather, or Open-Meteo with Pro.
Questions and notification control
Ask what the forecast means and use Standard or Pro to create condition-based rules for saved locations.
Learn moreA deeper active-weather map
Combine radar with supported technical products, official outlooks and discussions, warnings, lightning, storm reports, and hazard data.
Learn moreApple's documented Dark Sky integration
What Apple Weather offers that WeatherAI does not
Apple's documented feature integration
Apple documents the Dark Sky feature lineage in Apple Weather: hyperlocal forecasts, next-hour precipitation, maps, and standard notifications.
A simpler everyday workflow
Apple Weather is a focused first-party forecast without WeatherAI's specialist data and subscription layers.
Apple's exact first-party experience
WeatherAI can use WeatherKit data, but only Apple Weather provides Apple's complete interface and system presentation.
Built in by default
Apple Weather comes built in on supported devices, Apple Watch included, so there is nothing to install and no separate weather subscription.
How we checked this page
Sources and methodology
We checked WeatherAI against its current shipped product baseline and checked the competing product against the current first-party sources listed below. We did not run a controlled forecast-accuracy study, so this page does not claim that one app produces more accurate forecasts than another. Features, subscriptions, and regional availability can change after the review date.
WeatherAI App Store listingPublic storefront overview of supported platforms and broad feature categories; current provider and chat access are verified against the app and release documentation instead.WeatherAI: Forecast source selectionIntroduction of selectable Apple Weather, XWeather, and OpenWeather sources.WeatherAI: WeatherAI ForecastIntroduction of WeatherAI Forecast as another selectable source.Apple: How Dark Sky users can use Apple WeatherApple's account of Dark Sky features integrated into Apple Weather, including forecasts, maps, and notifications.Apple: Weather feature availabilityCurrent regional availability and data-source notes for Apple Weather features.Apple Weather App Store listingApple's current platform, forecast, maps, notification, Apple Watch, widget, and Siri feature overview.Apple: Manage weather notificationsCurrent and saved-location notifications plus iOS 26 suggested-location severe-weather alerts.Acme Weather: Introducing Acme WeatherThe Dark Sky creators' February 2026 introduction to Acme Weather and its forecast approach.Acme Weather App Store listingCurrent Acme Weather platforms and developer-described forecasts, maps, notifications, and community reports.
WeatherAI publishes this comparison. It is not an independent editorial review. Dark Sky, Apple Weather, and WeatherKit are trademarks of Apple Inc. Acme Weather is a separate product from WeatherAI. Neither Apple nor Acme Weather is affiliated with or endorses WeatherAI.
Frequently asked questions
Can I still download Dark Sky?
No. Dark Sky is no longer available as a current standalone app. Apple says its features were integrated into Apple Weather.
Is WeatherAI the official successor to Dark Sky?
No. WeatherAI is an independent app. Apple Weather is the product Apple documents as having integrated Dark Sky's features, while Acme Weather is a separate app from Dark Sky's creators.
What about Acme Weather?
Acme Weather is a separate app from Dark Sky's creators, introduced in February 2026. It offers its own forecasts, alternate predictions, maps, community reports, and notifications that include down-to-the-minute rain warnings. It is free for two weeks and then requires a $25 per year subscription. It is not the discontinued Dark Sky app and is not affiliated with WeatherAI.
Can WeatherAI use Apple Weather data?
Yes. Apple Weather data supplied through WeatherKit is WeatherAI's current default forecast source. WeatherAI uses its own interface, so it is not an exact reproduction of the Apple Weather or Dark Sky apps.
Why would a former Dark Sky user choose WeatherAI?
WeatherAI is a fit if you want to keep Apple Weather/WeatherKit as the forecast source but add provider choice, WeatherAI's multi-model forecast, conversational help, technical radar, custom rules, and broader hazard monitoring.
Compare other weather apps
Try WeatherAI with your own forecast
WeatherAI is free to download. Ask a forecast question, check the radar, and decide whether its workflow is a better fit for you. Premium features and subscriptions are optional.