The man, 48, was southbound on Highway 203 about 11 a.m. just south of town when the tree fell, said trooper Mark Francis with the Washington State Patrol.
The man was taken to a local hospital. He was expected to survive.
Saturday afternoon also saw reports of backups on U.S. 2 near Gold Bar because of falling trees.
More Local News Headlines
GPS coming to most local police, fire vehicles Everett City Council puts courthouse deal on hold over parking questions Volunteer brings troubled felines to inmates, who help tame them Monroe skatepark will undergo $240,000 worth of improvements Man sought in Marysville shooting Voters to decide on Marysville fireworks ban Life in prison for killer of Seattle police officer who was from Marysville Locals fondly recall author Ann Rule
Our new comment system is not supported in IE 7. Please upgrade your browser here.