The crash happened just before 9 a.m. on Westbound Highway 24 on the Oakland side of the Caldecott Tunnel.
A California Highway Patrol spokesman said Curry was hit twice; first a car spun out and hit him, then a second car rear-ended him. Curry's Porsche was damaged, but everyone, including Curry, appears to be OK.
The CHP said weather likely played a role in the wreck.
Curry is still recovering from a groin injury. He was not scheduled to play in the game against the Portland Trail Blazers Friday night.