Should be high 60's low 70s during the day and 60's in the evening. Best to bring a light coat. Rain is rare so if it does, we should all get a lotto ticket.
Yes. Parasols provided. There is a beautiful building we can go into if I get so lucky for the one time it rains in Temecula. The reception is in a beautiful large clear tent so we can hopefully still see the stars together.
Ask Ivan.
Yes, warm layers still recommended