Here's the last couple days of my ride to Alaska this past spring.
If you dont want to read, Here's a photo of the Alcan in canada between Destruction Bay and beaver creek yukon on April 2, temps were well below freezing.
Be careful and you'll probably make it maybe. It'll be a good story anyway, hopefully written by you and not your next of kin. Me, I'd wait till late April at the earliest to come up to Alaska on two wheels.