Memorial Day Weekend Forecast

FastCast—Saturday, May 27 to Wednesday, May 31:

A relatively nice Memorial Day weekend is in store for Western Washington. No rain is expected west of the Cascade crest, with only a chance of scattered showers from the mountains eastward. Through the weekend, expect lowland highs in the upper 60s to low 70s, with mostly cloudy mornings transitioning to sunny afternoons. Partly cloudy conditions will persist on Tuesday and Wednesday, with highs in the mid 60s to low 70s. Through Wednesday, expect lows in the mid 40s to low 50s. 

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A pleasant Memorial Day weekend is ahead for Western Washington, with near-average temperatures and dry conditions. Let’s take a look at high temperatures for the weekend.

Below are highs on Saturday, from the NAM high-resolution forecast.

Expect lowland highs in the upper 60s to low 70s, and in the mid 50s on the coast. Eastern Washington will reach the mid 70s to mid 80s.

Sunday’s highs will be similar, as seen in the NAM forecast below.

On Sunday, expect highs in the mid 60s to low 70s in the lowlands, in the mid 50s to low 60s on the coast, and in the mid 70s to upper 80s in Eastern Washington.

Low temperatures will actually be slightly below average over the next few days. Below is the NAM forecast for lows on Sunday morning.

Expect morning lows in the mid 40s in outlying areas and in the low 50s in the metro area. In Eastern Washington, expect lows in the mid to upper 50s.

Finally, let’s look at Monday’s highs, from the European model, seen below.

Monday will likely be the warmest day of the weekend, with highs in the lowlands in the upper 60s to mid 70s (this model likely runs cool). The coast will reach the upper 50s to low 60s, and Eastern Washington will likely reach the low 80s to low 90s. 

Enjoy the relatively pleasant Memorial Day weekend! Be sure to watch for brief thunderstorms in the mountains and scattered around Eastern Washington.