The woman was crossing the street with another woman in her 20s at about 4 p.m. Wednesday when they were hit by a car.
The older woman was rushed to hospital, where she died from her injuries later that evening.
The second woman was also hurt, but she is expected to recover.
According to police, the driver was blinded by the sun and did not see the two women walking in the intersection
This is the fourth fatal incident involving a pedestrian in Montreal this year.