Rosemarie Stein | The Oregonian/OregonLive

The week starts off with heavy clouds across the Portland area. The deep marine layer is accompanied by a light onshore flow that will keep the clouds around for most of the morning.

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Jim Ryan/The Oregonian/OregonLive

A high-pressure system is building and will begin to clear out the clouds by lunchtime. Expect sunny skies and warming temperature on Monday to 75 degrees.



Low clouds return overnight spilling over from the coast on Tuesday morning. Tuesday's morning clouds shouldn't be as thick and some clearing is expected through the afternoon. The high will be 78.

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What a great shot of last night"s weather event from Jim Mullholand. Posted by Wooden Shoe Tulip Festival on Sunday, May 6, 2018

By Tuesday night another upper level system approaches and will increase clouds and even bring some showers to the metro area. Forecasters with the National Weather Service see a chance for showers after about 11 p.m. Tuesday and into Wednesday morning. There are chances for thunderstorms with this system, especially near the Cascades.

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The Oregonian/OregonLive

Mid-week will be soggy with a 40 percent chance of showers throughout Wednesday and a high dropping to 65 degrees.

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