Public beta on TestFlight

Weather, with a point of view.

Oscar brings dependable global forecasting, beautifully animated conditions, radar, alerts, and deep environmental detail together in one native iOS app.

Try Oscar on TestFlight See what’s inside

Built for iOS 26+ · Active development

Oscar Weather shown across forecast, radar, map, environment, and settings screens

15+national weather services

Forecasts that feel alive

Forecast intelligence from

Open-MeteoDWDECMWFNOAAEnvironment Canada

The complete picture

More signal.
Less searching.

Oscar is designed to answer the quick question and reward a closer look—without turning your weather app into a spreadsheet.

Forecasts

Today, tonight, and twelve days out.

Current conditions, a detailed 36-hour outlook, a 12-day forecast, ensemble ranges, and sunrise and sunset—all selected from the best available model for your location.

Radar & maps

See the weather move.

Interactive radar playback plus temperature, wind, and precipitation layers for the next three days.

Environment

Know what’s in the air—and the ground.

Air quality, UV, pollen, humidity, pressure, soil conditions, and evapotranspiration reveal what the headline temperature cannot.

Animated atmospheres

The forecast changes the scene.

Metal-rendered skies respond to clear weather, cloud, rain, storms, snow, and night. Even the sun and meteors follow the time and place.

Coverage, made clear

Global by default.
Extra local where it counts.

Oscar’s core forecast works around the world. Regional services add more detail where specialized live data is available.

Forecasts

Current, hourly, daily, and ensemble outlooks

Global

Air & environment

AQI, UV, soil, moisture, pressure, and more

Global

Radar

Global RainViewer overlay with enhanced European radar

Global + EU

Weather alerts

DWD-powered warnings and Environment Canada alerts

Germany + Canada

Pollen

Alder, birch, grass, mugwort, and ragweed levels

Europe

Built to explore

Layers that turn
data into direction.

Scrub through time, compare conditions, and move from a regional radar view to global model output without leaving the map.

DWD ICON D2 · Central EuropeNOAA GFS · Global

Oscar radar layer over Europe — Live radarEurope

Oscar temperature forecast layer — Model layerTemperature

Oscar wind forecast layer — Model layerWind

Weather where you need it

From a glance
to the full story.

Oscar extends beyond the main app with Home Screen and Lock Screen widgets, radar at a glance, rain Live Activities, and an Apple Watch companion.

Open by design

Made in Swift.
Built in public.

Oscar is an open-source SwiftUI project. Read the code, report an issue, or contribute an improvement—the roadmap is visible and the door is open.

View on GitHub Browse issues

OscarWeather {
  interface: SwiftUI
  atmosphere: Metal
  forecast: Open-Meteo
  radar: DWD + RainViewer
  status: active_development
}

Good to know

The practical details.

How do I get Oscar?+

Join the public beta through TestFlight on a device running iOS 26 or newer. Oscar is still in active development and is not yet intended for production-critical use.

Where does the weather data come from?+

Global forecasts and air quality come primarily from Open-Meteo, which selects from national services including DWD, ECMWF, NOAA, and Météo-France. BrightSky, DWD, RainViewer, and Environment Canada provide specialized radar and alert data.

Does every feature work everywhere?+

Forecasts, air quality, environment data, and global radar have broad worldwide coverage. Pollen is Europe-only; enhanced rain detail and push alerts focus on Germany and Central Europe; live official alerts currently cover Germany and Canada.

Can I contribute?+

Yes. Bug fixes, features, and refinements are welcome through GitHub pull requests. For larger ideas, start with an issue so the direction can be discussed first.

The weather is changing

Meet it with Oscar.

Join the public beta and help shape what comes next.

Join the TestFlight beta