WA Seattle WA Zone Forecast for Tuesday, October 10, 2017 _____ 451 FPUS56 KSEW 101621 AAA ZFPSEW Zone Forecast Product for Western Washington...UPDATED National Weather Service Seattle WA 921 AM PDT Tue Oct 10 2017 Spot temperatures and probabilities of measurable precipitation are for today, tonight, and Wednesday. WAZ558-102330- Seattle and Vicinity- Including the cities of Seattle, Shoreline, Federal Way, and Kent 921 AM PDT Tue Oct 10 2017 .TODAY...Mostly cloudy with a chance of rain.