Get snow tires for your car or rent one with snow tires and preferably AWD/4WD, you can't go over 30 mph with chains and there is probably 50+ miles of snow and ice on the drive there if the weather is bad. You may get lucky with the weather and the roads will be clear but it's a gamble. I went over I-90 Snoqualmie pass today and the roads were dry because they haven't gotten snow in over a week.