For me, I've got 3 distinct sets of street gear:
1. 2-pc a-stars race leathers (warm weather to cold weather). They're not perforated except in a couple areas, so, they work remarkable well in the cold, and even pretty well in the heat IF I can keep moving and get airflow. Stuck in summer heat in stop-n-go and you'll sweat your ballz off. Not fun.
2. 2-pc a-stars Valparaiso gear with removable thermal and rain liners (can use both at the same time, or either - great feature!). This works very well with both liners in for weather as cold as I'd ever want to ride in (40deg F, 30deg ONLY if I get caught in it). And if I wanted to I could always add my thin thermals for extra warmth. With both liners out, and all the vents open you can ride in all but the hottest weather as long as you keep moving, even in summer. The entire back panel folds down out of the way so the vents on front run the air totally past you and you actually get a lot of airflow at speed. If you're stopped, you'll sweat more than in full mesh gear, but a lot less than in leathers.
3. Mesh jacket and mesh pants. Not as much protection as either, but, the only thing you'll be comfortable in when it's REALLY hot.
4. For my (new to me) ADV riding, I picked up an a-stars Andes Pro Drystar jacket (nice because the rain layer is IN the outer shell and not a separate liner), and semi-matching (slight color mismatch - WTF a-stars?) Andes V3 Drystar pants (same outer shell material). These seem to be even warmer than the Valparaiso I have, thought I haven't tried them back-to-back. Which is good, because I'm more apt to ride the ADV bike when it's colder and nastier than the 'RR.
5. I bought some thin, aluminized glove liners for pretty cheap at REI, and they really seem to work, especially considering how thin they are. In cold weather, I put them in a jacket pocket if needed, even with the heated grips on both bikes.
Be safe!