Short answer: including food and 1 liter of water, I’m usually around 15-17 lbs for a 2-night, three day trip in summer conditions in the Northern Rockies. That usually includes a flask of bourbon, but I often bring a pint or two of beer for the first night or two and that of course adds weight. And about 8 ounces of Tenkara fishing gear if I’m planning to spend time fishing.
More sincere answer, told via anecdote:
When I was contracted by Wilderness Press to serve as co-author of “Backpacking Washington” for its third edition I went over to meet with Doug Lorain, the original author, to discuss what the project entailed (fortunately and coincidentally, we both lived in the same town in western Montana). As a way of making conversation, I asked Doug — who’s hiked 30,000 plus miles all over the West and authored more than a dozen backpacking/hiking guidebooks — how much his pack weighs on a summer trip of 4 nights, five days. His reply:
”Don’t know, don’t want to know. Because if I did I probably wouldn’t want pick it up and carry it around in the mountains for five days.”
Honest and amusing answer. And  based on going on several trips with Doug, he does pack light. Not ultralight, but he doesn’t really care to. He just wants to have a good time hiking. I’ve adopted a similar mindset and don’t know to the ounce, much less the pound, how much my pack weighs. I don’t know how much even weigh most of the time. I just kinda go by feel and try to focus on the experiences and not so much the equipment (although I do love throughly testing gear, so I’m a bit of a contradiction).
I heard a quote recently, “Comparison is the thief of joy”, and I think it’s a good thing to keep in mind when looking at pack weights, miles hiked per day, locations visited, etc. As long as you can carry your pack comfortably and you’re hiking places you enjoy with people you appreciate spending time with (or enjoying solitude), that’s really all that matters.