Tuolumne to Devils Postpile in late September?

I got snowed in on Oct 1st, I think it was 2009 in the Roughs in the Hoover Wilderness.
It just depends on the year whether you see snow that early or not.

Anthony is right…though I would guess that late Sept. is pretty safe…The Nice thing about your route is that you have multiple bail points…though I feel you will not need them. I would consider this, it will be getting cooler at night…maybe some frost on yer bag but really that is about it. Late shoulder season in the Sierra is AMAZING!

I appreciate the advice. I can't wait. My first time in the Sierras!

Much fewer t-storms this time of year too!

I've been snowed on/out for the last 4 years for trips either to Yosemite or JM Wilderness areas in early Oct. However, in a day or two, it cleared up and was nice again. One year I was hiking in my shorts thru 4 " of snow the second day out, ate dinner in my sb that night to warm up. The third day out, swimming at a lake with my gear on rocks/logs drying out, well worth hanging in there. The last two years I just did the PCT close to home, hiking where I had not been before or car camping close to home that week. This year I'm going late Sept. for a road trip I think.
Duane