Traveling for the 1st 2 weeks in November primarily around these 2 areas.
I am only bringing 1 carry on so am limiting my "stuff".
The last time I went (October) I was really HOT in t-shirts and sundresses in Sevilla but Froze in Madrid wearing jeans and had to buy a light jacket and gloves! Can't afford to do that this trip.
Do you think a couroroy blazer and jeans with a long sleeve t shirt would be enough for Madrid if I have gloves and a scarf?
And how warm should Sevilla be? Should I bother with capris and bare legs with a t-shirt or will it be too cold?

Hehehe.. You pretty much got it there for early November as was your experience when you were here/there in October. In early November it'll be a little bit cooler in Sevilla. You might take one pare of capri pants but in addition to those take regular long pants and maybe one pair of jeans for evenings. Long pants are more easily washed and dried than jeans.

I seriously doubt you'll need gloves and a scarf for Madrid in early November. Maybe a light, weightless scarf for fashion.

Saludos, MadridMan

Daytimes highs in Madrid are forcast to be in the mid-60s with lows in the low to mid-40s. I know in November I have felt the need for light gloves in the early morning hours.