Vision: A warm rain shower is a symbol of fertility, success at work, and happy relationships.
A cold rain means others are going to treat you badly- Getting soaked in a rain shower: you won’t find your luck where you think. Watching a rain shower with the sun already shining: while you are still in tears. Lady Luck is already smiling on you. In a man’s dream, rain is a sign of his unmet need for relaxation.
Depth Psychology: Rain is a sign of an emotional release you should not try to prevent—don’t be afraid, you won’t lose control. See Water.
The raincoat means you are letting negative influences uroll off your back.” Maybe you will experience a “cloudburst” of good fortune soon. See Cloudburst.... Dreamers Dictionary
(Overcoat; Trench coat) In a dream, a raincoat means comfort, superiority, backing, cooperation and strength. As for a merchant, wearing a raincoat in a dream means prominence, distinction and fame in his field. Wearing a heavy raincoat in a dream means profits in one’s material and spiritual life. Wearing a cotton overcoat in a dream means lesser benefits. Wearing silk brocaded overcoat in a dream signifies attachment to one’s worldly gains and disregard for one’s religious and spiritual benefits. Being the only person who is wearing an overcoat or a raincoat in a dream means becoming poor and mixing with good people by displaying praiseworthy qualities. (See Overcoat)... Islamic Dream Interpretation
In common with other types of coat, a raincoat holds the symbolism of protection, but more specifically this time against other people’s emotional onslaught. Very occasionally it may suggest some kind of wish to return to a womb-like state.... Dream Meanings of Versatile