The list below is a collection of hikes with increasing difficulty. All are one day hikes and many can be done in winter or summer.
15 minutes from Lake Stevens - wild river experience
Portion can be done in the winter
Near Mt Si - better choice in winter
Isaquah Alps - mostly dry in winter
Mountain Loop Highway - snow in winter
Mountain Loop Highway - snow in winter
Near North Bend - good for having company :-)
Mountain Loop highway - nice flowers in Jul
Need sun and mid day low tides winter hike - long day near Sequim
Nice june hike - some snow
Great introduction to Rainier National Park
loop
need to pay money for permit
wait for September - may need poles or ice axe
Old Robe Trail
Wallace Falls
Little Si
West Tiger 3
Heather Lake
Lake 22
Mt Si
Mt Dickerman
Dungeness Spit
Blanca Lake
Fryingpan Gap
Wallace lake /falls
Mt St. Helens
Three Fingers