Final answer:
The correct completion of the sentence is 'will be,' which is used for making future predictions in English grammar. The sentence would read 'I think the weather will be nice later.' This is an example of how weather can affect decision-making and mood.
Step-by-step explanation:
The sentence "I think the weather _______ nice later" should be completed with 'will be' to convey a prediction about the future state of the weather. Thus, the correct sentence is: "I think the weather will be nice later." This touches on the use of the modal verb 'will' for making predictions in English grammar.
In the various examples provided, weather is a common theme, reflecting the changing conditions of the atmosphere that affect our daily lives and decisions. Situations like 'gradual clearing' and anticipating the 'end of snow, sleet, and rain' are typical circumstances where predictions about the weather are made. In contrast, 'whether' is used as a conjunction to discuss alternatives, such as deciding 'whether' to attend a game in person or watch it on TV.
Differentiating between 'weather' and 'whether' is crucial for English language learners to communicate effectively and make correct predictions or choices about the environment around them.