Certified GKH Gardening Expert
You could go ahead and plant them now, but keep in mind that they probably won't bloom until next season. You can also keep them stored until fall (spring) and plant them then. If you will be storing them, wrap them in newspaper to store in the garage.
The following articles should be of some help to you: https://www.gardeningknowhow.com/ornamental/bulbs/bgen/is-it-too-late-to-plant-bulbs-when-to-plant-bulbs.htm