I-5 Travel Weather: Heavy Showers and Reduced Visibility Expected Tuesday Through Thursday

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SEATTLE, Wash. – The early morning calm won’t last long as another round of Pacific rain rolls toward Puget Sound. A cool, damp breeze slips through downtown streets while clouds thicken from the coast — the kind of steady gray start Seattle knows too well each November.

According to the National Weather Service in Seattle, an active onshore flow will keep showers and drizzle in place through midweek. The heaviest rainfall is expected Tuesday night into Wednesday, with widespread downpours, slick roads, and ponding likely during both commutes. Winds will strengthen slightly Tuesday evening, gusting to 25 mph along the coast and through the South Sound region.

Temperatures will remain seasonably mild, holding in the mid-50s by day and upper 40s at night. However, with saturated ground and falling leaves, even light rainfall could create drainage backups and localized flooding in low-lying neighborhoods and near storm grates. Residents are encouraged to clear leaves from gutters and curbs ahead of Tuesday’s heavier bands.

Travelers along I-5, U.S. 2, and I-90 should plan for slower traffic and reduced visibility during heavier bursts of rain, particularly late Tuesday and early Wednesday. While no snow is expected at lower elevations, higher Cascade passes could see their first early-November mix of rain and wet snow by midweek.

The rain tapers slightly by Thursday, with lingering showers into the weekend. For now, umbrellas stay essential, and morning commuters should plan on longer drives as the Pacific storm train keeps rolling through.


Five-Day Forecast for Seattle, WA:
Mon: 50/47 – Rain developing; breezy north winds.
Tue: 55/49 – Rain likely; heavier late day.
Wed: 59/50 – Rain, gusty at times; flooding risk.
Thu: 57/49 – Cloudy; lingering showers.
Fri: 55/47 – Showers taper; cool breeze continues.