Detailed & customizable indie-made hour-by-hour weather forecast app, with beautiful widgets and Apple Watch complications.

Deemed by many to be the “app that makes their watch worth wearing”. Weathergraph is beloved by hikers, runners, bikers, kite surfers, pilots, and many outdoor enthusiasts around the world for its at-glance readability and customizability.

Weathergraph allows you to pick out from a range of forecast metrics, and style them in a variety of visual themes.

The app also comes with home screen and lock screen widgets for the iPhone (iOS 18 ready), and watchface complications for Apple Watch, making the hour-by-hour weather outlook the first thing you see on your favorite Apple device.

Apart from iPhone and Apple Watch, Weathergraph also supports iPad and macs, letting everyone put a widget onto iPad screen or Mac sidebar or desktop.

Made by a privacy-conscious independent developer, Weathergraph doesn't use ads or tracking, and shields its users from the forecast services.

Features

• Current conditions display with a terse text summary of what’s next

• Detailed hour-by-hour chart with 7-day weather outlook

• Daily forecast with precipitation totals for each day and a bar chart display of min & max temperatures

• Nowcast (real-time rain & snow forecast updated every 15 minutes)

• Rain & snow alerts based on nowcast data

• Vertical layout reminiscent of the recently shut down Dark Sky app

• Icon chart theme as an alternative for everyone who loved the Weather Line app

• Home screen widgets for iPhone and iPad, with looks and zoom levels customizable

• iOS Lock screen widgets of all form factors

• iOS 18 support - beautiful two-color widgets that match your wallpaper in the tinted homescreen mode, and dark & tint mode app icon

• Full screen chart in landscape mode

• Apple Watch complications, including the large central chart for the modular watchface

• Apple Watch Ultra & watchOS 11 support

• Offline capability - venture out to a wilderness (or just go on a hike with a wifi-only Apple Watch), and see the display updated with a most recently fetched forecast, kept for up to 24 hours. The data refreshes automatically once a connection is available.

• Background updates so that the weather shows up with no loading delay

• Large set of looks and themes, ranging from monochrome and minimalist to full-color gradients matching the temperature

• Dark and light mode support follows the iPhone, or allows the user to pick a preferred mode independently

Comprehensive set of weather metrics

To pick for a display in a chart:

• Hour-by-hour temperature and precipitation — (rain, and snow)

• Cloudiness (cloud cover) and sunshine (clouds on top + sun rays)

• Wind speed and direction as directional arrows, with a standalone lock screen widget and watch complication

• Dew point with a dew point comfort scale

• Atmospheric pressure, shown either as absolute value or direction and rate of change

• UV index to watch for sunburns

• Real day/night (sky color) at a current location as a chart background

• Daily temperature minimums and maximums (overlaid above chart)

• Actual temperature and location

• Sunrise and sunset times

Future plans

• Multiple location support - already in progress

Weather services

Weathergraph supports a large variety of weather models, letting you get a precise forecast anywhere in the world

• Apple Weather - a fresh weather service from Apple, based on the recently acquired excellent Dark Sky data

• Foreca - a great forecast provider from Finland, aggregating national weather providers. Excellent in Europe and consistently ranking among the top 3 weather services by accuracy for the US by forecastadvisor.com

• Open-Meteo - up-and-coming indie weather forecast service, rapidly adding new datasets and improving the precision every month

• Pirate Weather - indie-made service using NOAA's HRRR, GFS and GEFS models

• NWS - United States federal government agency - reliable forecast for the US

• Yr.no - free forecast service from the Norwegian meteorological institute

Who is Weathergraph for?

Hikers, runners, bikers, kite surfers, pilots, and many outdoor enthusiasts around the world love the at-glance readability, customizability, and reliability.

Weathergraph is offline capable - the app caches the last acquired forecast for up to 24 hours, allowing you to hike or run outside of the network (or go running or biking with a wifi-only Apple Watch) and still see the most recently fetched data. The data refreshes automatically once a connection is available.

All data updates automatically in the background so that Weathergraph always shows the up-to-date forecast instantly.

What people say (in App Store reviews)

... about the Weathergraph

Excellent selection of colors and graphs.

Graphs are the best way of visualizing data and this app uses them brilliantly.

Presenting the weather forecast this way makes so much more sense than anything I’ve seen before.

Both on iPhone and Watch, Weathergraph’s visuals and approach are somehow both simple and comprehensive, offering quick access to all weather information across a useful timeline.

In one complication on my watch, I can easily read see the temperature, “feels like” temperature, humidity, probability of precipitation, precipitation amount and type, atmospheric pressure (or change in pressure) UV index, cloud cover, daylight, wind speed, and direction - for a whole week!

The amount of detail that has gone into creating this app and the amount of customization that is available with this app is amazing.

... about the app developer

Frequent updates and improvements are a plus.

Tomas keeps adding new features and choices for users to tailor their apps to their individual preferences as we didn’t know we needed them. Great stuff! Keep it coming!

Major bonus points to the app developer for actually listening to feedback and incorporating it in a timely manner … kudos!

Pricing

The app has a freemium model, with a selection of features, themes, and free Yr.no service available to free users without any time limitations.

Weathergraph offers either a yearly subscription (with a 7-day free trial period), or a one-time Weathergraph Forever option to unlock: - commercial weather sources - all the features (like wind direction in chart, more chart customizability) - more watch complications - and all visual themes for the chart

Privacy and author

The app is made by an independent developer (Tomas here - just write me an email at tk@tomaskafka.com) and cares about user privacy as much as the author does.

I take great care to not know anything about you because this is how I want every other app on my phone to behave as well.

Weathergraph’s servers shield you from the possibility of being tracked by forecast service (as all the requests are stripped of any IP addresses or headers that could identify a specific device) and do not store any locations or personally identifiable data.

Weathergraph also doesn’t serve any ads or use any third-party tracking or analytics library.

Read more details in Weathergraph’s privacy policy.

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