After three days of above normal temps, we have now switched to a cooler pattern...but the big change will be on Sunday, when heavy rain will probably hit the region....take a look at some of the 24-h rainfall totals from the local high-resolution WRF model for the periods ending 5 PM on Sunday and Monday. The first image shows a nice rainshadow NE of the Olympics and the second a strong Puget Sound convergence zone. A strong warm front will move through late Saturday/early Sunday, with a fairly deep low center passing across northern Vancouver Island.
And if it makes you feel better, Hawaii is getting wet and cloudy weather (see satellite image)...although tomorrow they will 80F with the rain!