Weather is still not the worst up here VNA. I rode to work today in just my jacket (all vents open), some normal jeans, summer gloves and my boots.
I agree, riding in jeans is not without it's risks, but I find riding in full regalia in heat to be so distracting it's dangerous in itself, so for me I feel safer in jeans. Obviously i adjust my riding style a little when in normal clothes, but it's a risk I'm willing to take - even after previously been flung up the road with jeans on and feeling the aftermath!