New iOS 15 Weather feature can show you a real-time rain map

Now, the addition of the rain map is also a feature of one of the most popular weather apps out there—Dark Sky—so this may have something to do with the fact that Apple bought that third-party app last year, as noted by New York Post. 

To view the rain map and other novel Weather features, you need to be running iOS 15, of course. (Here's a list of which iPhones support iOS 15, Apple's newest OS iteration.) If you haven't updated your phone yet, you can do so by going to Settings > General > Software Update.

Apple's Weather App comes pre-installed on every iPhone. So just open up Weather, then go to the little map icon you will see in the bottom left corner. From there, tap the three small stacked squares in the top right to choose your weather filter. Go ahead and choose "Precipitation," and voilà! There you have a visible map that displays exactly where it is raining around the world—right now, in the past, and in the future.

Move the bar on the bottom of the screen left or right to move through time. This way you can easily check if it will be raining in your local area tomorrow, or the next day, with just a couple of taps.

The levels of rain are color-coded to let you know exactly what level of precipitation you should expect, and leave home well prepared.

The colors range from lighter blue > purple > yellow > white, to provide visual illustration of the variation from light rain end to heaviest, respectively.