Question

in the old man at the bridge what is the grey overcast day symbolize?

Answer 1

It symbolizes the only good luck the Oldman had. Cause the weather is overcast and the Fascicst cannot send their bomb planes and also pigeons can escape from the artillery.

Answer 2

The day is described as a "gray overcast day with low ceiling". The gray colour here is symbolic of old age, sadness and something boring. By this sentence Ernest Hemingway tries to establish an atmosphere of sadness, loneliness and destruction which was bought about by war.