In chapter 5 of The Great Gatsby by F. Scott Fitzgerald, there is a lot of discussion about the weather. Through most of the day discussed in the chapter, it is nasty and raining. This foreshadows the rainy and tempestuous relationship that will ensue between Gatsby and Daisy. All of the descriptive words Fitzgerald uses regarding the weather carry negative connotations. Specifically, Fitzgerald uses "darkness," "pouring," "damp," "dash," "wet," "puddle," "muddy," "swamps," and "marshes," among other words.
The climate is first mentioned in association with Gatsby’s house. Gatsby is very proud of his house and wants Daisy to see it. Naively, he believes it represents his having reached her social strata. Nick says, “[There was] only wind in the trees, which blew the wires and made the lights go off and on again as if the house had winked into the darkness.”
The reader is immediately immersed in a day that is windy and dreary. The wind turns the lights off and on, reflecting the ephemeral impact the enormous house will ultimately have on Gatsby’s relationship with Daisy. In other words, while she is impressed initially, it is not a positive impression that will last, just as Daisy’s relationship with Gatsby will not last.
Nick says, “The day agreed upon was pouring rain. At eleven o’clock a man in a raincoat dragging a lawn-mower tapped at my front door and said that Mr. Gatsby had sent him over to cut my grass.” This is another sign of how dreary the day is and how anxious and eager Gatsby is to impress Daisy. Even in the rain, he needs Nick's lawn manicured.
Even later, after the rain has stopped, the day is still misty. Gatsby says, "If it wasn’t for the mist we could see your home across the bay." This parallels Gatsby’s relationship with Daisy. She is unobtainable. When he feels that he gets near to her, he is really only approaching her through a mist and cannot really see her clearly.
When Daisy arrives, Gatsby is described as “pale as death… standing in a puddle of water glaring tragically into my eyes.” This foreshadows Gatsby’s actual tragic death in the pool at the end of the novel. He is standing in a puddle of water in this scene, and at the end, his lifeless body is discovered in a pool of water.