My family lives in Coeur D'Alene, which is just a few miles east across the border in Idaho. CDA is muuuuch nicer than Spokane, IMO, and when it gets hot the lake is right there so you have plenty of cool water to enjoy. I don't care for Spokane much at all, it's hard to believe that it's only a half hour from CDA, as they feel very different to me. When CDA gets snow, it's beautiful, when Spokane gets snow, it's just cold.
When you are out visiting, do yourself a favor and look around the CDA area or even Sandpoint if you want to be within shooting distance of Spokane but would like to live in a nicer area. Another bonus to the Sandpoint area is that you're right near some decent skiing if you like to ski/snowboard and it also has a big lake. The one thing Spokane does have going for it is more jobs, since it's a bigger city. There are still a lot of jobs to be had in the surrounding areas, but you have to be skilled at what you do to get them, as there's a bit more supply than demand than in Spokane. CDA is more of a tourist/vacation city than Spokane, so there's a lot of seasonal work and housing can cost a bit more if you don't hunt for a good deal. With that said, I suspect the housing will be cheaper than Philly.
I agree that Spokane is hot, but it's not as hot as SE WA (on average) and it's never humid, which is a hell of a lot better than other places I've lived. To those who say it's hot there, I doubt they've lived somewhere humid for any period of time. I'd take Spokane's heat over the heat+humidity I experienced in AL and FL anyday, heck, even Flint/Detroit summers were worse than Spokane because of the humidity.
I don't agree that you have to go west to see nice areas of the NW. I do agree that the best parts of the NW are west of the Cascades, but one of my favorite highways I've driven in the US (and I've been on a lot) is I-90 from CDA and Missoula, MT. There are some really fun twisties with beautiful scenery and high speed limits through there, I've had some very memorable drives through there. The Sandpoint/CDA areas are also beautiful as they've got big lakes at high elevation in the mountains surrounded by trees. This is postcard material pretty much year round IMO, one of the big reasons that my parents moved from the Seattle area to CDA a few years ago was that there are 4 real seasons and the scenery is always very nice.
Bryce