Pacific Northwest Weather This Week: Wet Roads, Slick Travel, and a Weekend Cool-Down in Seattle

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Washington – A gray sheet of sky presses low over Seattle this morning, the kind that turns headlights into halos and sidewalks slick with drizzle. Rain has been steady since Wednesday, pooling along I-5 and slowing early travel through the Puget Sound. The city hums quietly — soaked, reflective, and braced for another damp day.

The National Weather Service reports rain will persist through much of today before easing Friday. South winds stay light but steady, gusting near 10 mph at times. Temperatures will hover in the upper 40s to low 50s, cool enough to keep a chill under the clouds. Friday offers the region’s brief reprieve — mostly sunny skies with highs near 50°F — before clouds thicken again Saturday and light rain redevelops by evening.

Drivers and travelers should watch for wet pavement and ponding in low-lying areas, especially during post-Thanksgiving returns. Expect slower traffic across I-90 and Highway 99 where fog and drizzle may linger.

Long-range NOAA outlooks show the Pacific Northwest staying active into early December. A colder air mass dropping from Canada could merge with Pacific moisture early next week, signaling a “winter tease” pattern with below-normal temperatures and continued rainfall — and possibly a few higher-elevation snowflakes in the Cascades.

Five-Day Outlook for Seattle, WA

  • Friday: Mostly sunny, high 50°F, low 42°F.
  • Saturday: Mostly cloudy, slight rain chance late, high 49°F.
  • Sunday: Partly sunny, high 48°F.
  • Monday: Rain likely after 10 a.m., high 48°F.
  • Tuesday: Light rain, high 49°F.