A speaker steps outside at four o'clock and sits down on the ground to listen to the rain. Instead of treating the weather as something to hide from, they hear it as nature crying, and they sit calmly in the middle of it. The phrase "Mother Nature cries" makes the storm feel personal, almost like a parent letting out their feelings while the speaker keeps them company.
The second half moves quickly. By five o'clock the speaker says goodbye, the tears have stopped, and there is "a new sky." The short lines and the simple jump from 4 to 5 suggest that an hour has passed and something has been released. The mood is peaceful and reflective, with a gentle sense of relief at the end. Judging by the imagery, the rain may also stand for the speaker's own sadness, which passes as the clouds clear, though the poem never says so directly.