At the start of the week, residents of Western Washington are enjoying unusually warm weather for this time of year: on Monday temperatures rise to 22°C (72°F). However, by Monday evening a flow of cooler marine air is expected to return temperatures to seasonal normals. On Tuesday and Wednesday thermometers will drop to 13–14°C (55–57°F), although nighttime frosts midweek are unlikely.
The coming week is forecast to be mostly sunny and dry — the first spring rain is possible only on Saturday. This stable, calm weather is a pleasant contrast after an extremely wet winter that caused flooding and landslides. Warm, rain-free weeks have also led to unusually early blooms in the region’s famed tulip fields and Japanese cherry blossoms.
Interestingly, despite the subjective feeling of a very sunny spring, statistically this season has seen more precipitation than usual. Meteorologists explain this paradox by the pattern of this winter and early spring: intense rain periods, so-called “atmospheric rivers,” alternate with prolonged dry, clear stretches that are more memorable.
Based on: Seattle weather: Highs in the 70s, then sunny, dry days all week