Certainly, there are proofs that support the claim that exercising in the evening is better than exercising in the morning for weight loss, but the pieces of evidence are very limited. More research is needed to come to a strong conclusion on this matter.
Till that time whether you choose to exercise in the morning or the evening, try to be consistent and add variety in your workout routine. Here are a few things you need to be careful about if you are exercising in the evening.
Exercise 4-5 hours before going to bed, else it will be difficult for you to fall asleep at night.
Fuel yourself properly before exercising. Your body needs energy to perform strenuous exercise.
Add different kinds of workout like strength training, bodyweight exercises and cardio for better results.
Remember only exercising will not help you reach your goal. A healthy and nutritious diet is equally important.