There is a lot of hiking along the I-90 corridor. Tiger, Cougar and Squak Mountains just behind Issaquah has some shorter hikes with good views that are also good for trail running. Rattlesnake Ledge, Mt Si are also good hikes. Might get some snow at the top depending on weather. Mailbox Peak is a thigh burner. It’s out near North Bend. Would most likely have snow at the top. Just be sure to check the mail at the top and leave some mail.
http://www.wta.org is a great resource to look for hikes. You can get good info on recent trail/weather conditions.

if You want to get out a bit further and have the time, Leavenworth is a cute little Bavarian town in the North Cascades. It’s about 2 1/2 hours It could be a long day trip or an overnight. A pretty drive would be to take Highway 2 over Stevens Pass there and 97/Blewett Pass/I-90 back. just look at the Pass reports before heading out. it will most likely be rainy/grey in Seattle area. Just layer, have a good rain shell and umbrella. Have fun!