Will It Be Raining Tomorrow. If the speaker wants to say. But maybe it depends. It will be raining tomorrow is correct grammaticaly and its going to rain tomorrow is more of a casual saying of the above sentence its going to be rain tomorrow is wrong in grammar Actually both statements are declarative the first one using regular future tense and the second one using another type of future tense. The rainfall forecast map shows where it is expected to rain today and tomorrow.
For example it will be raining tomorrow when we arrive or its going to be raining tomorrow by the time we arrive. Suppose you needed to say She will be running tomorrow ie replace it with she and replace raining with running. The visibility is expected to be ideal with average visibility of 10 mi throughout the day. Since Im not sure if it will rain tomorrow. Partly sunny with a high near 77. The 2nd one means it will be raining but it doesnt say for how long during the day it will rain.
The rainfall forecast map shows where it is expected to rain today and tomorrow.
Then they need to change the first sentence because we dont like to use will after if. Could might and perhaps are more or less synonyms. We need to use the present simple. Im not sure if its natural for native speakers to say Its raining tomorrow. Southwest wind around 7 mph. Its raining tomorrow is grammatically correct but Id rather say It might be raining tomorrow instead.