Luke 12:54

54 And he said also to the multitudes, `When ye may see the cloud rising from the west, immediately ye say, A shower doth come, and it is so;

Luke 12:54 Meaning and Commentary

Luke 12:54

And he said also to the people
For what Christ had before said, were chiefly, if not solely, directed to his disciples; but now he turned himself to the innumerable multitude that were about him, and particularly addressed himself to the Scribes and Pharisees that were among them:

when ye see a cloud rise out of the west;
the watery vapours being attracted by the heat of the sun, out of the Mediterranean Sea, which lies west of the land of Judea, and formed into a cloud, and drove by the wind:

straightway ye say there comes a shower;
as soon as it is seen, it is presently concluded and affirmed, that a very heavy shower will soon fall, it having been frequently observed so to do, when this has been the case:

and so it is;
for the most part, there commonly follows a large shower on such an appearance, and they were seldom mistaken in their conclusions.

Luke 12:54 In-Context

52 for there shall be henceforth five in one house divided -- three against two, and two against three;
53 a father shall be divided against a son, and a son against a father, a mother against a daughter, and a daughter against a mother, a mother-in-law against her daughter-in-law, and a daughter-in-law against her mother-in-law.'
54 And he said also to the multitudes, `When ye may see the cloud rising from the west, immediately ye say, A shower doth come, and it is so;
55 and when -- a south wind blowing, ye say, that there will be heat, and it is;
56 hypocrites! the face of the earth and of the heaven ye have known to make proof of, but this time -- how do ye not make proof of [it]?
Young's Literal Translation is in the public domain.