Weather widgets, in the Dock, and in the menu bar. ClassicWeather, the Mac version of the popular iOS weather app ClassicWeather, offers clear weather widgets in 3 different sizes and colors. It also provides weather forecast in the dock and menu bar menu.

ClassicWeather Features

Current weather conditions
Forecast for 7 days
Forecast for next 12 hours
Forecast by the hour
Forecast in text format
Temperature in Fahrenheit or Celsius
Probability of precipitation
Feels like temperature
Local time
Sunrise / sunset
Current phase of moon
Multiple cities
Current location
Weather in menu bar menu and dock menu
12-hour or 24-hour time format
3 widget designs, 4 sizes
2 modes (single window or widget)
Retina supported
Compatible with OS X 10.10 (Yosemite)

Additional features are available with upgrade to the full version:
Forecast for 10 days
Forecast for next 24(+) hours (scrollable)
Humidity
Wind speed and direction
Current condition on dock icon and menu bar
App in dock and/or menu bar

Compatibility: OS X 10.11 or later 64-bit
Top In-App Purchases : 1. Premium included
Mac App Store: https://geo.itunes.apple.com/app/id694028445