Hi Soulja - where do you live in Washington? I live near Seattle and it's pretty nice outside right now (don't know about the weekend) but there's the public market, waterfront during the daytime. One of my favorite sober things to do at night is hit a starbucks and go to the bookstore.
You can also check the "Whats happening" section of the seattle times, they often post happenings on the weekends.
Hope this helps you out!
Jen