Portland should experience a gradual warming trend on Friday with sunny skies, followed by continued warm conditions on Saturday.

That comes after a mild Thursday when the high temperature was expected to reach 73 degrees.

The weekend also will bring a transition from warm, sunny conditions to rainfall. Friday will see clearing skies and temperatures climbing into the mid-70s. Saturday is likely to be the warmest day, with temperatures reaching the upper 70s to low 80s in the Willamette Valley. Saturday evening will bring increasing clouds as a frontal system approaches, however, leading to widespread light rain on Sunday.

The National Weather Service predicts rain will move into the region late Saturday night and continue through Sunday morning. Forecasts suggest between 0.3 to 0.8 inc

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