We are definitely spoiled here. all about 30 min drive from Everett:
Lime Kiln Trail - Good for a (muddy) trail run right now
Robe Canyon - hit hard and washed out after out recent storms, made it to the 3rd tunnel
Heather Lake - Decent hike, can stretch it to make a half day of it
Lake 22 - Same as Heather Lake
Mt Pilchuck - I don't know if the road is still open but this is a tougher hike that would take all day, awesome in good weather.
There is a good sized ranger station at Verlot that should have some maps and they should have fairly up to date conditions.
ETA: Sorry for the size of these they are panos and fucking like 10 mb each
ETA2: Mtn Loop is closed past MM22 at Deer Creek.
Heather Lake. Forgot my spikes, but it wasn't too bad.
Lake 22
I assume you'll have a rental car? Lake 22 is about 200 yd off the Mountain Loop Highway. The parking lot fills up quick on the weekends no matter the weather so hit it early (before 8-9)