Puget Sound Forecast: Partly to mostly cloudy with mid-day showers, mainly south of Everett. The number of showers will likely increase during the afternoon hours, especially along or near the Cascade foothills. Highs in the low to mid 60's. Meanwhile, under mostly cloudy skies, lows will dip into the mid 40's to low 50's.
Coast Forecast: Mostly cloudy to partly cloudy with scattered showers. Highs in the low to mid 50's.
Mountain Forecast: Mostly cloudy with scattered showers, increasing during the afternoon, especially from Stevens Pass south. Showers will likely persist this weekend over the Cascades where snow levels will rise to 6,000' Saturday and 7,000' Sunday and Monday. Keep the rain gear handy if you're going camping!
Eastern Washington Forecast: Mostly sunny becoming partly cloudy. A few thundershowers will be possible near the east slopes of the Cascades. Highs in the low 60's to low 70's.
The low responsible for our unseasonably cool and showery weather will drift away from western Washington into eastern Washington, and eventually, southeastern British Columbia. That will reduce shower activity, but a zone of lowered pressure, called a trough, will remain draped over western Washington, and that will maintain at least a threat of showers on through Sunday, though I believe the potential for showers Sunday will be small, except along or near the foothills.
Memorial Day should see partly sunny skies and be generally dry until later in the afternoon or during the evening when the potential for rain will increase again, especially south of Seattle. Highs should be back into the mid to upper 60s.
Have a Safe a Fun Memorial Day Weekend!
Keisha Burns / KING 5 First Alert Weather