Can you really feel the difference between the low 90s and the mid 90s?
We’ll find out tomorrow.
After reaching 94 degrees today—the hottest temperature recorded in Seattle this year—we’re set to cool off slightly on Friday, as the warmest air gets nudged eastward. With a thermal low still lurking to our west, however, it’ll remain on the hot side—think 91 instead of 94.
Out along the coast, it’ll be a much different story. Marine air flowing in from the Pacific overnight will cause temperatures to plummet (to wit, Hoquiam is already down to 58 degrees), making for a much cooler Friday. High temperatures tomorrow should struggle to break the low 70s.
Friday night into Saturday morning, the thermal low will finally shift east of the Seattle area, drawing in some of that cooler coastal air. Temperatures will fall to near 80 degrees, with clouds moving in overhead. Later in the day, a shift in the upper level winds will pull in moister air from the south, making for a rather muggy evening.
The humid conditions will also lead to isolated thunderstorms across Western Washington. Right now, it looks like the best chance for some thunder and lightning is overnight Saturday into Sunday morning. Unfortunately, for those of you wanting some more color in your lawn, rainfall with the storms looks pretty sparse. (If we do stay dry through Sunday, it’ll mark four straight weeks without measurable precipitation in Seattle.)
The clouds stick around into Sunday, capping highs in the mid 70s. Monday looks just as cool—albeit with a bit more sunshine.
By then, the difference in temperature will be all too apparent.
