Seattle is kicking off the summer solstice with sunshine and a high near 78°F — Seattle weather doesn’t get much better than this for a Sunday. Whether you’re headed to T-Mobile Park for the Mariners game, running the Burke-Gilman Trail, or setting up in your backyard, today is a gift. Get outside and use every minute of the longest day of the year.
Today’s Setup
An upper-level ridge is rebuilding over Western Washington, clearing any leftover low clouds back toward the coast well before noon. The National Weather Service calls for sunny skies all afternoon with west winds at 2 to 8 mph — barely a breeze. Overnight lows ease to around 55°F under mostly clear skies, with a gentle north-northeast wind and no rain in sight.
Best Window To Be Outside
All day, honestly. From Green Lake to Discovery Park to Kerry Park, the entire city is your playground. If you’re planning a long run or trail outing, a hydration running vest will keep you comfortable as temps climb toward the afternoon peak. It’s also a perfect solstice afternoon to hang a hammock with stand at Seward Park and angle for that postcard-clear view of Mount Rainier. If the water’s calling, our 2-Person Intex Floating Lounge with Cooler Just $24 deal on Amazon is worth a look.
Mariners vs. Red Sox: Ideal Gameday at T-Mobile Park
The Seattle Mariners host the Boston Red Sox at T-Mobile Park today, and the forecast is dialed in — sunny skies and 78°F makes this one of the best tailgating setups of the season. Rock a Seattle Mariners jersey or Seattle Mariners fitted cap in the stands and soak up the longest day of the year in SoDo. Still need seats? Get tickets on SeatGeek or Find tickets on StubHub.
Fire Weather Heads-Up This Week
The National Weather Service is flagging elevated fire weather concerns through midweek as the ridge tightens its grip and humidity stays low. If you’re grilling, landscaping, or clearing brush — exercise extra caution this week. Keep water accessible and don’t leave any open flame unattended. This is not the week for backyard burn piles.
What’s Ahead: Heat Advisory Monday and a Packed Event Calendar
Enjoy 78°F today, because Monday heats things up fast — a high near 84°F with mostly sunny skies and a Heat Advisory beginning midday Monday. The National Weather Service highlights Moderate HeatRisk for interior lowlands including areas like Renton, Kent, and Auburn. Drink plenty of water and check on neighbors, kids, and pets.
On the event front, it’s a big week: the Don Toliver Octane Tour lands at Climate Pledge Arena on June 24 — grab a Don Toliver t-shirt or Don Toliver hoodie and Get tickets on SeatGeek. Then on June 25, the Fuerza Regida: This Is Our Dream Stadium Tour 2026 takes over T-Mobile Park — a Fuerza Regida t-shirt is the right fit for that one. And if you’re celebrating Father’s Day today, a Father’s Day grilling set is a solid gift for the backyard chef who deserves a sunny Sunday cookout.
A frontal system is expected to arrive by late next week, bringing cooler temperatures and measurable rainfall back to most of the region, per the National Weather Service. Enjoy the dry stretch while it lasts.
For dinner tonight, an easy pasta or stir-fry fits the mild 78°F evening perfectly — nothing too heavy, nothing too fussy. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door.
