computer science

Weather (Apple)

Weather (Apple) is a computer science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Weather (Apple) rather than just read about it. In short: Weather is a weather forecast app developed by Apple Inc., available on iOS since the release of the iPhone and iPhone OS 1 in 2007. Weather allows users to see the conditions, forecast, temperature, and other related metrics of the device's current location, as well as a number of other cities.

Key takeaways

Weather (Apple) belongs to computer science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Weather (Apple) to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Weather (Apple) from memory before moving on to harder problems.

Reference excerpt

Weather is a weather forecast app developed by Apple Inc., available on iOS since the release of the iPhone and iPhone OS 1 in 2007. Weather allows users to see the conditions, forecast, temperature, and other related metrics of the device's current location, as well as a number of other cities. A version of Weather is also available for watchOS, but it has limited functionality.

History Weather was made available on more devices across the Apple ecosystem with the releases of iPadOS 16 and macOS Ventura, where weather data from Apple was previously only available as a widget or through Siri. From iPhone OS 1 to iOS 7, Yahoo! Weather was used as the weather data source of the app. In March 2019, Yahoo! shut down the servers distributing data for the Weather app on devices supporting iPhone OS 1 to iOS 7. From iOS 8 to iOS 15, The Weather Channel was used as the weather data source of the app. Since iOS 16, Apple has used its own internal forecast data. Following the acquisition on March 31, 2020 of the weather app Dark Sky, many features have been rolled into Apple's own Weather app with the release of iOS 15. At the beginning of 2023, support for Dark Sky ended, with users being urged to migrate to the Weather app.

Functionality Locations can be added or removed by pressing the list icon in the bottom right corner of the application, which allows the user to type in the city's name, ZIP or postal code, or airport code. For each city, the app will display the current, highest, and lowest temperatures, a 10-day forecast, UV index, time of sunrise and sunset, current wind direction and speed, rainfall measurements, current humidity, outdoor visibility range, and barometric pressure. In some locations, the app will also display an air quality report and show next-hour precipitation when raining or snowing. iOS 14 introduced support for severe weather warnings, allowing a user to receive notifications for government-issued severe weather events such as tornadoes, flash flooding, strong winds, and snow storms. Severe weather information is available from national weather services for Australia, Brazil, Canada, India, Japan, Mexico, Thailand, the United States, and most of Europe. With iOS 15, a weather map can be accessed from the bottom left of the application that can display the temperature, air quality, and a multi-day precipitation forecast.

WeatherKit API WeatherKit is an API integration toolkit that provides third-party developers with access to the Apple Weather service, replacing the former Dark Sky API, which was terminated at the end of March 2023. Developers can make up to half a million API requests per month for free, with subscription options available to increase the request limit.

Weather app data source history In 2007, the initial release of the Weather app leveraged the weather data of Yahoo! Weather. In 2014, seven years later, the weather data of The Weather Channel replaced the weather data of Yahoo! Weather. In 2022, eight years later, The Weather Channel data was in turn replaced with the weather data used by Apple.

The macOS and iPadOS versions of Weather also use WeatherKit. Apple WeatherKit amalgamates data from multiple sources.

References

Bibliography

External links

Illustrations

Worked examples

Example 1 — a first encounter with Weather (Apple)

Start with the simplest possible case. Write down what Weather (Apple) claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Weather (Apple) before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Weather (Apple) ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Weather (Apple)

In research: Weather (Apple) appears in computer science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Weather (Apple) in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Weather (Apple) is common in secondary-school and first-year university syllabi. It links to neighbouring topics Apple Inc. software, Graphic software in meteorology, IOS-based software made by Apple Inc., so understanding it makes those chapters shorter.
In everyday life: Look for Weather (Apple) outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Weather (Apple) in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Weather (Apple) means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Weather (Apple) out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Weather (Apple) in simple terms?

Why does Weather (Apple) matter?

Because it connects several computer science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Weather (Apple)?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Weather (Apple).