Seattle is squeezing the most out of a mostly sunny Sunday afternoon on February 15, 2026, with highs near 46°F after a chilly start. It is likely the warmest stretch locals will see for several days before a cooler, wetter pattern settles in on Monday and hangs around through much of next week.
Clouds Creep In Tonight
Skies turn mostly cloudy tonight, with a chance of light rain after about 4 a.m. Monday, February 16, 2026. Lows will dip to around 35°F before climbing into the upper 30s overnight. New rainfall amounts are expected to stay light, under a tenth of an inch, so think damp roads rather than downpours, according to the National Weather Service Seattle.
Holiday Forecast: Rain, Then Mixed With Snow
Monday, Washington’s Birthday (February 16, 2026), starts off wet with rain, then gradually shifts to a rain and snow mix through the afternoon and evening. Highs will hover near 43°F, and winds will turn southerly at roughly 6–10 mph.
Snow levels are forecast to fall from roughly 1,000–1,500 feet on Monday to near 500 feet by Tuesday morning. That drop could bring some wet flakes to a few lowland neighborhoods overnight, but little lasting accumulation is expected below about 1,500 feet. The Cascades are lined up to take the real hit, with several inches of snow through the passes in the short term and the potential for a foot or two over multiple storms later in the week.
On The Roads, In The Passes, And Out On The Water
Drivers should expect wet, slick roads Monday morning, with the possibility of brief slushy spots at higher elevations. Anyone heading over Snoqualmie, Stevens, or White passes should check current conditions and chain requirements at WSDOT mountain-pass conditions before leaving.
Coastal and outer waters will also get rougher, as seas could build toward 10–12 feet Monday night into midweek, so small boats should plan accordingly. For most Seattle plans, it is time to swap sunglasses for rain gear and give yourself a little extra room in the commute on Monday and Tuesday.
