Snow on Half Dome?

Hi all, this is our first time going up half dome (this weekend October 4-5) and was wondering if it will be safe or any tips. We are camping at Little Yosemite Valley on October 4, and starting the hike to Half Dome morning of October 5.

I checked the weather and it looks it will snow (very little) on Friday, will that pose any safety risks? Will it be too cold?

Thanks all in advanced.