Every phone has a weather app, but rarely one that shows exactly what you check each morning. Build your own: describe the screens and the look, the AI agent writes the app and connects it to a public weather service, you try it in the emulator preview, and you download the APK. The idea above is a clean everyday forecast; turn it into a farmer's, runner's or kid's weather app with one sentence.
What your weather app will have
- Now — a big temperature, feels-like, a weather icon and a short summary line, with wind, humidity and today's high and low.
- Hourly strip — the next 24 hours scrolling sideways, each hour with its temperature and chance of rain.
- 7-day forecast — one row per day with an icon, the high, the low and the rain chance.
- Cities — search any city, save it, reorder your list and swipe between cities on the main screen.
- Settings — Celsius or Fahrenheit, 12- or 24-hour time, and a light or dark theme.
- Offline view — the last forecast with its update time when there is no connection, instead of an empty screen.
Saved cities and settings stay on the phone, so the app opens straight to your list every time.
Features you can ask for
- Sunrise and sunset times, plus the UV index or air quality where the weather service provides them.
- A "what to wear" line: jacket, umbrella, sunscreen.
- A rain-chance chart for the rest of the day.
- Animated backgrounds for sun, clouds, rain, snow and night.
- A morning reminder as a local notification.
- Day names and descriptions in your language.
- A big-text mode for older relatives who only want today and tomorrow.
Ideas to make it yours
For more on units, locations and the details that make a forecast app feel finished, read how to build a weather app without coding. Weather apps are also a favorite class project; the school project and hackathon guide shows how to present one.
Get it on your phone
- Press Build this weather app and sign in with Google. The agent builds the screens and connects the weather data.
- Check the forecast in the emulator preview, add two cities and swipe between them.
- Ask for changes in plain words: "bigger temperature", "rain chance in blue", "start the week on Monday".
- Press Download APK and install it on your Android phone. Allow location when it asks, to see your own forecast.
- To publish on Google Play, build the signed version; the APK builder page explains signing and uploading.
Test a city in another hemisphere and one where it is night right now. It is the quickest way to check that seasons, icons and the day-and-night background all behave.
Why a weather app is a great first project
A weather app is small enough to finish in an afternoon, yet it touches the things real apps need: the phone's location, data from an online service, a loading state, an error state and a design that has to read at a glance. You learn to describe each of those in plain words, and you can ask the agent to explain how it handled them. It is also genuinely useful, because you decide what matters on the first screen. A cyclist wants wind, a gardener wants frost, a parent wants to know if the school run needs coats. Keep the forecast honest: it comes from a public weather service, so show the update time and let people refresh. When you are happy with it, try something bigger with the AI app builder.
Frequently asked
Where does the forecast come from?
The agent connects the app to a public weather service and reads current conditions and forecasts from it. The app is only as accurate as that service, so it shows when the data was last updated.
Does the weather app need my location?
Only if you want the forecast for where you are. The app asks for location permission and reads the position while it is open; you can also skip it and use saved cities only.
Does it work offline?
It needs internet to fetch new forecasts, but it can keep the last one on the phone and show it with an 'updated at' time, so you still see something useful on a plane or in the hills.
Can it remind me to check the weather?
Yes. Ask for a morning reminder as a local notification; on a real Android phone it fires even when the app is closed. In the emulator preview you test it from the Simulate panel.
How do I put the weather app on my phone?
Press Download APK in the builder and install the file on your Android phone after allowing installs from your browser once. For Google Play, build the signed version from the same menu.
Make your weather app now — free to start
Describe it, sign in, and the agent builds it while you watch. Change anything by asking.
Build this weather app ›