I don’t know about Fish Lake but at Banks Lake there has been enough ice in the south end at the boat launch in Coulee City for a few weeks now. A few weeks ago there was over 5-inches there and now it has to be thicker. Yesterday there was even a few people out on the ice on the main lake in the south end but I will stick to the bays where I know the ice is thick enough.
By the way, they are catching some nice perch there by the boat launch in Coulee City at the south end of Banks Lake during the day.