Visual weather strip
Up to 7 days of hour-by-hour weather in a single, information-dense chart. Temperature curve, rain bars, sunshine rays, wind arrows, UV index — all visible at once. Spot patterns and weather windows instantly.
Weathergraph
See your whole week of weather at a glance
Press Releases
Weathergraph introduces Rainbow.ai nowcast for precise rain predictions, refreshed with iOS 26 Liquid Glass design
Weathergraph embraces iOS 18 with stunning widgets, adds new forecast sources and quick forecast switcher for outdoor enthusiasts
Weathergraph brightens your day and helps you chase the sun with new Skylight and Sun Glow feature
Weathergraph adds a vertical layout (not just) for the fans of the recently closed Dark Sky app
Weathergraph adds a wide range of iOS 16 lockscreen widgets
About
Weathergraph shows you the intuitive way to know when things will happen, not just what.
Hour-by-hour forecasts in a single, visual graph. Temperature, rain, wind, UV, sunshine, clouds, dew point — all visible at once. Spot weather windows for outdoor activities instantly, without scrolling through endless lists or parsing numbers.
Beloved by trail runners, hikers, cyclists, pilots, and weather enthusiasts around the world, Weathergraph has earned its reputation as "the app that makes their watch worth wearing." The Apple Watch app is particularly praised — rich graphical complications put weather data right on your wrist, working standalone on cellular models.
The latest update introduces Rainbow.ai nowcast — hyper-local precipitation predictions with ~10 minute precision, powered by machine learning radar processing. It catches passing showers and fast-moving cells that traditional models miss. The app also embraces iOS 26's Liquid Glass design with glass-mode widgets that blend seamlessly with wallpapers.
Made by a privacy-conscious independent developer with no ads, no tracking, and no data selling. Weathergraph shields its users from forecast services and respects their privacy.
Highlights
Best-in-class Apple Watch app
Rich graphical complications put weather data right on your watch face. Highs, lows, rain, and wind at a wrist glance. Works standalone on cellular Apple Watch. Beloved by Apple Watch Ultra users.
Rainbow.ai Nowcast
Hyper-local precipitation predictions with ~10 minute precision. Machine learning-powered radar processing catches passing showers and fast-moving cells that traditional models miss.
iOS 26 Liquid Glass design
Glass-mode widgets that blend seamlessly with wallpapers, color-on-glass charts, new weather tooltip for details at any point, and thumb-friendly bottom navigation.
Skylight & Sun Glow
Dynamic backgrounds that mirror current sky conditions — from soft pinks of dawn to warm sunset hues. Sun Glow highlights sunny periods in the forecast to help plan outdoor time.
Deeply customizable
Hundreds of preferences to configure exactly what you see and how. Multiple weather sources to choose from. Vertical or horizontal layouts, themes from minimalist to vibrant gradients.
All Features
Core App
- ✓Hour-by-hour visual chartup to 7 days of weather at a glance
- ✓Rainbow.ai nowcasthyper-local rain predictions with ~10 minute precision
- ✓Multiple weather sourcesApple Weather, Foreca, Open-Meteo, Pirate Weather, NWS, Yr.no
- ✓Rain & snow alertsget notified before precipitation starts
Widgets
- ✓Home screen widgetsincluding nowcast chart directly on homescreen
- ✓Lock screen widgetsall sizes, iOS 18 tinted mode ready
- ✓iOS 26 Liquid Glassglass-mode widgets, new UI, thumb-friendly navigation
Apple Watch
- ✓Complicationsrich graphical data on your watch face
- ✓Apple Watch Ultraoptimized for larger displays
- ✓Standalone appworks on cellular Apple Watch without iPhone
Visual Design
- ✓Skylight backgroundsdynamic sky colors matching current conditions
- ✓Sun Glow highlightseasily spot sunny periods in the forecast
- ✓Vertical layoutfor Dark Sky app fans
- ✓Icon chart themefor Weather Line app fans
Customization & Privacy
- ✓Hundreds of preferencesconfigure every detail to your liking
- ✓Privacy-firstno ads, no tracking, no data selling
Weather Sources
Choose from multiple professional weather services to get the most accurate forecast for your location:
- Rainbow.ai — ML-powered nowcast for hyper-local precipitation predictions (new!)
- Apple Weather — Apple's service built on Dark Sky data acquisition
- Foreca — Finnish provider aggregating national weather services worldwide
- Open-Meteo — open-source weather API with multiple model support
- Pirate Weather — indie service using NOAA's HRRR, GFS and GEFS models
- NWS — US National Weather Service — reliable government forecast
- Yr.no — Norwegian Meteorological Institute — free, quality forecast
Who Uses Weathergraph
Outdoor enthusiasts — runners, hikers, cyclists, pilots, and kite surfers who need to spot precise weather windows for their activities.
Apple Watch power users — people who want rich weather data at a wrist glance, not just a temperature number.
Data visualization lovers — those who appreciate seeing complex weather patterns in an elegant, information-dense display.
Dark Sky and Weather Line refugees — users seeking a worthy replacement after their favorite apps shut down.
Customization enthusiasts — power users who want to configure every detail of their weather display.
Pricing
Free tier — core features, themes, and Yr.no weather source with no time limits.
Weathergraph Pro — yearly subscription (7-day free trial) or one-time "Forever" purchase. Unlocks all weather sources, watch complications, and visual themes.
Fact Sheet
- Developer
- Tomas Kafka (independent developer, Prague)
- Launch date
- April 2020
- Platforms
- iOS/iPadOS 15+, watchOS 9+, macOS 12+
- Price
- Freemium (free tier + subscription or lifetime unlock)
- Contact
- tk@tomaskafka.com
What Users Say
★★★★★
"The sheer amount of information you can gather visually, just at a glance, is insane. Temperature, precipitation, UV, humidity, pressure, clouds, wind speed and direction for an entire week. After the death of Dark Sky, I thought nothing could ever match it. This app blows Dark Sky out of the water."
★★★★★
"Most weather apps either give you temp & current conditions, or drown you in detailed forecast data. Weathergraph takes that data and presents it in a fantastic at-a-glance display that lets you not just see but understand upcoming conditions."
★★★★★
"I signed up for the lifetime because I enjoy it so much. I have a widget on my iPhone lock screen and another on my Apple Watch. Great to see highs/lows, winds, rain, cloud cover, and more in a glance. Using the Modular Ultra watch face, it's easy to view."
★★★★★
"I've been looking for something more than just a chart of numbers. Weathergraph gives me a quick look at conditions while enabling me to spot patterns or weather issues before a warning comes. Once you learn the legend, it's easy to see what's happening."
★★★★★
"I love an app with 900 preferences so you can really make it your own. Good weather apps are hard to come by and this one is awesome."
★★★★★
"When Apple bought Dark Sky, I wasn't sure how I would get my weather. Someone told me about Weathergraph as a replacement, and I've never looked back. Super customizable, looks great, and the founder is open to suggestions."
Screenshots & Media
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Promo & Hero ImagesApp IconsiPhone ScreenshotsiPhone FramedApple WatchNowcastSkylight & Sun GlowDark Sky LayoutIconic ThemeLock Screen WidgetsFull Screen View