[Mithadan]

Another wise woman was alluded to by Tolkien and she did live in the Third Age. Malbeth the Seer. She gave Arvedui Last-King his name predicting that if his claim to the throne of Gondor brought fruit a great power would arise, but if Gondor rejected him, Arvedui would be the last king of the North Kingdom. She also predicted the coming of Aragorn and delivered the prophecy of the Witch King's death.

I also agree that Gilraen showed great foresight. Her story resembles that of Feanor's mother. Both Gilraen and Feanor gave birth to one child only and both predicted their children were bound for greatness.