It is really hot today. What punctuation should be added?

It is really hot today. The sentence here needs an exclamation point. There are obvious exclamation marks "Ya" and "Zhen" in the original sentence, and there are two exclamation marks. Moreover, the meaning of the sentence is very clear, which is an affirmation of the hot weather and has a strong emotional color. Through the above analysis, this sentence is a common exclamatory sentence, and an exclamation point should be added at the end of the sentence here.