The Brief Western Washington will see dry weather and warming temperatures through Friday, peaking in the 80s for many inland areas. A weak weather system will bring cooler temperatures and a chance of showers over Seafair weekend before warm weather returns next week. (FOX 13 Seattle)Cooler and cloudier Seafair WeekendA weather system will move inland late Friday and into Saturday, bringing a noticeable change for Seafair weekend. (FOX 13 Seattle)The cooler weather won’t last long. Through Friday, warm temperatures, dry air and little to no rainfall will keep vegetation dry.