We have just spent the summer on the Olympic Peninsula and will be heading south this coming Sunday. What Tom/Barb says is true about the area (though we did not observe a "huge drug problem" at Pike Place Market in Seattle).
The PNW is the "it" place to be during the hot months, so make your reservations as far ahead as you can... NOW wouldn't be too late! We have thoroughly loved the peninsula and all the little port towns. We took the ferry over to Seattle about three times to spend the day (much better than driving over there).
Surface travel: while here, we flew from Seatac out to Baltimore to spend a week with grandkids. It takes about 2.5 hours to get from the peninsula to the Seatac airport on a good day. Coming back, we experienced two hours of delay on I-5 getting out of Seatac going south and, when we got to the Hood Canal bridge, sat there another 45 minutes while they opened the bridge for a Navy vessel (a common occurrence). Out on the peninsula, the roads are two-lane and speeds are 35 - 55 MPH - but the drives are gorgeous! We've traveled in eastern Oregon and will be doing Portland and the coast on our way south the next few weeks.
As mentioned, two weeks isn't enough to see even a small portion of either state, so spend a lot of time reading (we use Trip Advisor a lot) and plan your time. And remember: there is no bad weather - just bad choices in clothing.
Rob
U.S. Army retired
2020 Solitude 310GK-R
MORryde IS, disc brakes, solar, DP windows
(Previously in a Reflection 337RLS)
2012 F350 CC DRW Lariat 6.7
Full-time since 8/2015