Portland should expect a cool and foggy weekend with temperatures hovering in the low 50s.

Dense fog is likely to develop Friday night across the Willamette Valley, with temperatures dropping into the 30s and potential frost formation. Saturday morning will start misty, with fog potentially lingering until early afternoon. A weather system approaching from the coast will increase precipitation chances, with light rain expected late Saturday night into Sunday.

By Sunday, a widespread band of precipitation will move inland, bringing 0.15 to 0.5 inches of rain to the Portland area. Wind gusts could reach 20 mph, and snow levels will begin to drop Sunday night, though significant accumulation is not expected.

The extended outlook suggests a wet week ahead, with multiple weather systems pote

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