I was up last Saturday and it was getting ice around the edges. There were some sheets of ice forming in Arapahoe Bay. Surface temp everywhere was from 33-36 degrees. I heard tyoday that Rainbow Bay has a skim of ice, too. I'm betting it will be mostly frozen this weekend, but not thick enough to walk on yet.aquarius said:Does anybody know the current ice / open water conditions at Granby? Is shore fishing still possible, and if yes, is it everywhere or only somewhere? I guess that this big and deep lake will freeze late.