Seattle is kicking off Sunday with wall-to-wall sunshine and highs near 66°F — grab your plans and get outside, because it doesn’t get much better than this for late May.
Today’s Setup
A building upper-level high pressure system is clearing the decks across western Washington, according to the National Weather Service. Overnight lows dipped to the low-to-mid 40s, so early risers on the Burke-Gilman Trail or heading to Myrtle Edwards Park along the waterfront should bring a light layer — you’ll shed it before noon. North winds stay light at 1-9 mph all day, and the Seattle weather forecast shows zero percent chance of rain through Monday.
Best Window to Be Outside
All of it. Mid-60s, full sun, nearly calm winds — the whole day is yours whether you’re hiking Tiger Mountain, paddleboarding on Lake Union, or firing up the grill in your backyard. There is genuinely no bad hour to be outside today.
Mariners Game Day: Perfect Conditions
The Seattle Mariners host the Arizona Diamondbacks today at T-Mobile Park, and the weather will not be a factor — sunny and comfortable from first pitch through the final out. SoDo tailgating will be genuinely pleasant. Dress the part in a Seattle Mariners jersey or Seattle Mariners fitted cap. Still hunting for seats? Find tickets on StubHub and make your way down to SoDo.
Allergy Alert
Warm sun plus light breezes equals active pollen movement across the greater Puget Sound area. If you’re a seasonal allergy sufferer, don’t leave the house without an allergy relief nasal spray. Back home, running a HEPA air purifier will keep your indoor air cleaner as pollen counts climb alongside this warming trend through the week.
What’s Coming: Heat Builds Through Tuesday
Monday steps up to a high near 72°F under mostly sunny skies. Tuesday is the day to watch — the National Weather Service is forecasting upper 70s to near 90°F for parts of the Seattle metro, with Minor to Moderate HeatRisk for areas away from the water, including parts of the South Sound and Seattle neighborhoods inland from the shoreline. Start hydrating now and have a cool indoor option lined up for Tuesday afternoon. Onshore flow returns Wednesday with welcome relief and a return to more typical early-June temperatures.
Looking further ahead, Louis Tomlinson brings the How Did We Get Here? World Tour to Climate Pledge Arena on June 4 — Get tickets on SeatGeek and pick up a Louis Tomlinson t-shirt ahead of the show. Check the outdoor gear deals page if the sunshine has you thinking about summer gear.
Dinner Tonight
Sunny and 66°F calls for a light weeknight stir-fry — quick to throw together and easy to enjoy outside before the evening cools off. You can order groceries on Amazon and have fresh ingredients at your door in time for dinner.
