Washington – Umbrellas line the streets of downtown Seattle this morning as steady rain sweeps across Puget Sound, dampening commutes and delaying traffic along I-5 and Highway 99. Shoppers and travelers heading out for early December errands can expect another stretch of wet, gray skies through Friday night, with heavier rainfall on the way.
According to the National Weather Service in Seattle, a strong moisture plume will drive near-continuous rain through the region, peaking between Thursday afternoon and Friday evening. Totals could reach one inch or more across the metro, with heavier amounts possible in the foothills and Cascade slopes.
Rain chances remain near 100% Friday, with breezy south winds gusting to 25 mph, adding to difficult driving conditions. Pooled water may collect in low-lying areas and along on- and off-ramps. Meteorologists urge drivers to slow down, keep headlights on, and allow extra braking distance as slick pavement increases the risk of collisions.
The persistent rain will taper slightly Saturday into Sunday, though scattered showers are expected to linger. Daytime highs will hold in the low-50s, keeping the air cool and damp through early next week. While snow remains confined to the mountains for now, models hint at colder Pacific air arriving by mid-December, potentially lowering snow levels closer to passes.
Five-Day Outlook (Seattle, WA):
- Today: Cloudy, high 45°F.
- Thursday: Rain likely, high 47°F.
- Friday: Heavy rain, high 53°F.
- Saturday: Showers, high 52°F.
- Sunday: Rain likely, high 54°F.
