The solar eclipse will occur on August 21, 2017. The eclipse will by 95% in Seattle and will start at 9:08am and end 11:38am, with ~totality at 10:20am. Remember to wear special eclipses glasses, as staring at the sun directly, even during an eclipse, can cause permanent damage to your eyes. Read about the eclipse event in Seattle and tips here (via SeattleMet). For a more broad overview of the August solar eclipse across the US, explore this article/interactive graphic here (via WashingtonPost).
PS – there’s the annual August Perseid Meteor Shower the week prior to the eclipse when the moon isn’t very bright.