Merge pull request public-apis#5939 from deniskoronchik/dev

Add Rainbow Weather API

Author: ArindamOSS

README.md

@@ -1991,6 +1991,7 @@ API | Description | Auth | HTTPS | CORS |
 | [OpenWeatherMap](https://openweathermap.org/api) | Weather | `apiKey` | Yes | Unknown |
 | [Pirate Weather](https://pirateweather.net/en/latest/) | Free weather API with forecast data similar to Dark Sky | No | Yes | Yes |
 | [QWeather](https://dev.qweather.com/en/) | Location-based weather data | `apiKey` | Yes | Yes |
+| [Rainbow Weather](https://developer.rainbow.ai/) | Global real-time nowcasting API powered by radar + satellite fusion | `apiKey` | Yes | Unknown |
 | [RainViewer](https://www.rainviewer.com/api.html) | Radar data collected from different websites across the Internet | No | Yes | Unknown |
 | [Storm Glass](https://stormglass.io/) | Global marine weather from multiple sources | `apiKey` | Yes | Yes |
 | [Tomorrow](https://docs.tomorrow.io) | Weather API Powered by Proprietary Technology | `apiKey` | Yes | Unknown |