It is looking like june will be a good month for skiing around sognefjellet this year, but conditions change...
There are many good trips around Turtagrø, Krossbu, and Leirvassbu. Just to name a few.
Crevasse and avalanche risk/conditions is difficult to say unless you are there on the day. High up and on north faces you will still probably find winter conditions, whilst south faces and lower slopes will be spring conditions.
Maybe you could contact www.norgesguidene.no and ask for info.