The phrase "dark prediction" is correct and usable in written English.
It is typically used to refer to a negative or unsettling forecast or prophecy. Example: The psychic's dark prediction about the future of the world left the audience feeling uneasy.
This dark prediction may or may not prove to be true.
Inglewood finished with a dark prediction: "Unless something radical and imaginative is done... Squirrel Nutkin and his friends and relations are going to be toast".
Therefore prevention must be writ large in cancer control plans if we are to defy the dark prediction of the statistics".
In conversations with people in her social circle these days, Maureen White, the wife of the financier Steven L. Rattner, shares a dark prediction: embarrassing information will soon surface about how Attorney General Andrew M. Cuomo has handled an investigation involving her husband.
Beck also repeated his dark prediction about the world on Monday.
With each new attack and each new dark prediction, Trump sent a clear-cut message: he was the only one prepared to protect America.
Others offer dark predictions of impending revolution and chaos.
Like other dark predictions of his, that has led Israelis to see him as a reliable guide to the region.
In spite of McCloud's dark predictions, Doug and Deni finished their house and it looked lovely, if you like that sort of thing.
And Erica Rosalba Aguilar, another factory worker, was hanging laundry in her front yard of tumbleweeds and making dark predictions for the future.
In interviews with about two dozen residents who were mostly opposed to the law, certain worries, resentments and dark predictions about it came up time and again.
