Last year, 23.000 people flocked to Stonehedge for the Summer Solstice. That's a LOT of people...not sure what you could see through an enormous crowd like that.
This year, for the first time ever, Summer Solstice at Stonehedge will be live-streamed. You will have a bird's-eye view of this amazing event this weekend, both sunset and sunrise. Check the link here and make sure that you double check your local time to the British time zone. For what you will be able to see from your cozy home, this may be better than being there.
Thank you to the English Heritage site for the information on live streaming.