We backpacked up to Iceberg lake over the weekend. Snow was getting soft by about 10 - 11:00 am up to about Iceberg lake. Some previous postholing was evident between Upper Boy Scout lake and Iceberg. Except for the hill just above Upper Boy Scout lake, crampons were not needed up to Iceberg lake. We skiped the sand chute (full of snow on the bottom 2/3)going up to Iceberg lake in favor of the waterfall pitch.
We spent a nice afternoon at Iceberg, doing some exploring. Night was brisk and cold. As soon as the sun went down it got much colder very fast.
We ran into Kashcraft and his group. They said the stashed their crampons on the top of the Whitney Russell pass and didn't use them any more on the way to Russell.
As recommended, Ice axes and crampons were definately needed above Iceberg lake to the summit. The snow was good and hard in the morning. Most of the route above Iceberg has good snow coverage with some dry areas close to the notch. It was still 35 degrees, cold and windy in the shade up by the notch by 9:00 am but was up to about 60 degrees down at Iceberg lake by 11:00 am.
Thanks for the sound advice about going prepared. Ice axe and crampons are heavy but when you need them, they can save you from serious hurt.