Record‑Close Dry Spell Nears Historic Benchmark Seattle‑Tacoma International Airport logged 14 straight days without measurable rain, one day shy of the 15‑day record set in 1963; another dry day on Tuesday would tie that mark[1].

Tuesday Night Rain Forecast Will Break Streak Meteorologists predict light rain to begin Tuesday evening, expanding into widespread showers overnight and continuing into Wednesday, which would end the current dry spell[1].

Cloud Cover and Temperatures Rise Ahead of Moisture Skies turned mostly cloudy across the region on Tuesday, while temperatures climbed into the upper 40s °F and low 50s °F, indicating a shift toward a more humid air mass[1].

Warmer Southwest Moisture Threatens Snowpack Recovery The incoming moisture originates from the southwest, a warmer source than typical Gulf of Alaska systems, raising concerns for the already depleted snowpack, with many mountain sites holding less than half of their usual snow levels for this time of year[1].

Snow Levels Expected to Fluctuate, Limited Accumulation Forecasts call for snow levels to drop to around 4,000 ft on Wednesday, allowing only a few inches of snow at higher elevations; by week’s end levels should rise to 5,000‑6,000 ft, limiting further snowfall and offering little assistance to overall snowpack recovery[1].

Continued Rain Through Thursday‑Friday Brings Mild Lowland Temperatures Rain chances persist into Thursday and Friday, with the heaviest precipitation along the coast; lowland overnight lows will stay in the mid‑40s °F and daytime highs will reach the mid‑50s °F, marking a mild shift after recent colder weather[1].