Updated Thursday 1:20 p.m.
You can tell we're reaching the halfway point between summer and winter when one week's forecast has a bit of both.
They're...just out of order...
We start with the winter-ish kinda weather (minus the winter-like temperatures, of course). An approaching warm front will thicken up the clouds this evening with rain spreading inland during the evening into the nighttime hours. The front is sweeping southwest to northeast along a path that will focus much of the rain along the coast and North Interior, leaving the Puget Sound region cloudy but mostly dry. We can't rule out some light showers, but definitely wetter to the north and west of Seattle. Afternoon temps in the mid 60s will cool into the mid 50s overnight.
A stronger system approaches Friday as an area of low pressure swirls into Vancouver Island. This is just a practice low -- it's not that potent, but bears some semblance to the breezier weather systems I'm sure we'll see once we get into the heart of autumn. For now, expect a cloudy and mild day as the low draws up some warmer air ahead of it, then a rainy and breezy evening and night. Highs should reach around 70.
A soggy Friday night will ease back to just scattered showers on Saturday with temperatures cooling back to the mid 60s. A Convergence Zone is a decent bet for extra showers along the King-Snohomish County line area.
Sunday is the transition day back toward more summer-esque weather with maybe just a stray morning shower but partly sunny skies with highs in the mid-upper 60s.
Then high pressure barges back in and looks to stay for a while, ushering an extended warm and sunny pattern for pretty much the entire week. Highs on Monday will be around 70 with some patchy morning fog, but temperatures in Seattle could reach the mid to maybe even upper 70s by the end of the week as warmer offshore flow kicks in. Some of the warmer spots south and east of Seattle may snag a late season 80.
This is the "parting shot" we usually see this time of year that just when you think sunny and warm weather is over, here comes one last gasp.
Only maybe "gasp" is suggesting too brief of period. "Parting exhale?"
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Today's Record Temperatures