iStat Menus is a Mac utility that displays various system performance details in your Menu Bar. With its help, you can monitor your CPU usage, sensors temperature, fan speed, weather information for your current area, and many others.
The main window of the program gives you access to various settings which can easily be configured even by a beginner. You can choose which type of information is to be monitored and displayed on your Menu Bar, enable screen notifications if needed, select the update frequency for the offered details, etc.
In my testing, I monitored CPU usage, weather details, and the temperature of my system sensors, The program offered me real-time accurate information, without slowing down the performance of my system in the process.
The only thing that didn't work properly while testing the utility was the Weather tool. It failed to identify my current location and display weather information automatically. Instead, I had to go to the main window of the program and search my location in the Weather tab. Still, this isn't a big deal since it's fixable.
In conclusion, you should try iStat Menus on your Mac if you're looking for an easy way to monitor the performance of your system. This program provides you with accurate information, uses minimum CPU resources while running on your Mac, and comes with a reasonable price.