Referencing the chart and using ～でしょう, we will report what tomorrow’s weather in our area will probably be. ～でしょう comes directly after the short forms of verbs, adjectives, and nouns.

There are other ways in Japanese to say that something will likely happen or likely not happen that we will learn later on. ～でしょう in particular suggests that the probability of the thing discussed is based on the speaker’s firsthand knowledge.

サンフランシスコは明日曇りでしょう。気温は十五度ぐらいでしょう。
（サンフランシスコは明日くもりでしょう。気おんは六十五どぐらいでしょう。）