I keep my willow cuttings wrapped in damp newspaper, in a plastic bag in the fridge. Same thing works for apple and pear scions for grafting. We have a cool cellar that also works well.

You would want to trim off and discard the part that has catkins and cut the rest into approx. 8" sections for rooting. Pencil size up to about 1/2" seems to work best for me.

As long as the cuttings are still limber you have a fair chance of getting them to root. The better you prepare and tend any hardwood or softwood cuttings the better they are likely to grow for you.

Have fun!

maeve