Two days of May are left to go, they will be cooler, cloudier days before a June warm-up.

Marine air surging inland overnight will create and hold low morning clouds with spotty drizzle, especially around Snohomish County northward. It may take all the hours until 3 p.m. to burn out of the stratus and get to sunshine late day. High temperatures will be in the low to mid-60s.

Wednesday will be the coolest, cloudiest day of the week with ocean air and dim, stratus clouds filling Puget Sound through much of the day. Partial clearing or sunbreaks will begin to show late afternoon and into the evening keeping the highs in the low 60s.

The turn-around day is Thursday, June 1st! High pressure building up from the south will slowly push lower pressure away with gradual warming of the air-mass.

Thursday morning clouds will lift rapidly to mostly cloudy near noon and eventually skies will become partly sunny, highs in the upper 60s, near 70. Ridging continues to strengthen Friday and Saturday which will help the temperatures warm a little more. Friday should get into the low 70s and Saturday to mid-70s.

Sunday and Monday are looking warmer when a thermal trough slips northward from Oregon and pushes western Washington into the mid to upper 70s under sunny skies.

Meteorologist Rebecca Stevenson
The KOMO 4-Cast Team

Updated Monday Night{/strong}