Thursday, May 21, 2026, started clear and cool in Seattle, with about 52°F recorded at Boeing Field (KBFI) at 5:35 a.m. PDT. High pressure overhead will keep skies mostly sunny and help inland temperatures climb into the low 70s, with many neighborhoods expected to top out near 72°F. Light north to northwest winds, around 2 to 7 mph, should keep afternoon outdoor plans comfortable rather than blustery.
Afternoon Sun And Temperatures
A ridge over western Washington will hang on through Friday and Saturday, keeping the pattern warm and mostly dry. Interior neighborhoods will see the highest readings, while coastal and waterfront spots run a few degrees cooler thanks to the marine influence. Inland areas are on track to nudge into the mid 70s. These timing and temperature details are from the National Weather Service.
Boaters And Ferry Riders Should Watch Advisories
Small Craft Advisories are posted for parts of the Strait of Juan de Fuca and nearby coastal waters this afternoon into Friday morning, which could mean choppy seas and some rough ferry rides during the evening push. Advisories are expected to begin around 2 p.m. Thursday, May 21, for coastal waters from Cape Flattery toward Point Grenville and continue through about 11 a.m. Friday, May 22. In the central Strait of Juan de Fuca, advisories are expected to run from around 5 p.m. Thursday through about 5 a.m. Friday. Mariners and passengers should plan for gusty, bumpy conditions and double check schedules before heading out, according to the National Weather Service marine forecast.
Memorial Day Weekend Outlook
The ridge will flatten over the holiday weekend, allowing a front to move in late Sunday. A chance of rain begins Sunday night, and rain is likely on Memorial Day, Monday, May 25, 2026, with highs dropping into the upper 50s. Winds will turn southerly and pick up on Monday, so anyone planning outdoor ceremonies, parades, or park picnics should have a wet weather backup ready. Forecasts Sunday into Monday will be worth a close look for any timing changes.
Takeaway
Use the sunshine while you have it, and pack layers so cool mornings do not catch you off guard, plus a light jacket for evening breezes. If you are boating or riding ferries tonight, secure loose gear, keep an eye on the marine forecast, and build in extra travel time in case choppy conditions slow crossings.
