It's just my opinion and many may disagree but if the forecast looks good then there is no problem leaving all rain gear behind. Even if it did rain on you I have hiked soaked to the bone in pouring rain and was happy as can be. We all can pick and choose what level of safety we want but when your talking about a forecast of only a couple of days it's highly unlikely to get hit with some freak storm.
I was at Cirque Peak on June day with a forecast of no weather for days. Out on the horizon was a storm that was not supposed to be there. It eventually dumped a bunch of rain on us.
I do that locally all the time but in the Sierra...I find it risky.
