Google lets you put a shortcut on your home screen for weather

Possibly taking the job away from dedicated weather apps, Google's rolled out the ability to place a shortcut to weather information right on your home screen. That shortcut will take you right to the redesigned weather screen within the Google app. It's not showing up yet on all devices but you can find out if you can access it by heading to the Google app and typing it weather. Once your local weather info shows up, there should be an option to "access weather instantly from your home screen" and by clicking Add that should create the shortcut. 

Source: Android Authority