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Seattle, WA skyline — local weather forecast and conditions
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Weather Seattle, WA

Seattle Weather Thursday: Sunny and 76°F — Perfect Mariners Game Day

Best Window Thursday: 76°F, Sunny
Rain Risk Low
What To Wear / Bring Sun protection, water, and breathable layers
Useful Links Local forecast, radar, and relevant planning links
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7-Day Forecast

Thu 76°Sunny
Jun 82°Mostly Sunny
Sat 76°Mostly Sunny
Sun 80°Sunny
Mon 85°Sunny
Tue 86°Sunny
Wed 82°Mostly Sunny

Seattle is waking up to crystal-clear skies this Thursday, June 18, with a sunny high near 76°F — get outside and enjoy one of the best early-summer days the Pacific Northwest delivers.

Today’s Setup

A high-pressure ridge anchored well offshore is keeping Western Washington dry and bright. The National Weather Service notes light northerly flow at 5 to 10 mph this afternoon, putting a gentle cap on temperatures near Puget Sound — so Bellevue and the Eastside should run a touch warmer than downtown or West Seattle. Coastal stratus that lingered near Shelton overnight dissipated by late morning, leaving nothing but blue sky over the Olympics and a clear shot of Mount Rainier from Beacon Hill.

Best Window To Be Outside

Your entire day is the window — zero percent chance of rain, wall-to-wall sunshine. Morning hikers heading up Rattlesnake Ledge or Cougar Mountain will find comfortable air in the low-to-mid 50s at sunrise. By midday temperatures climb into the low-to-mid 70s: prime time for a round at Jefferson Park Golf Course, a picnic in Volunteer Park, or a backyard session with the corn hole game set or badminton set. Check out outdoor gear deals if you need to restock for the sunny stretch ahead.

Mariners vs. Orioles at T-Mobile Park

The Seattle Mariners host the Baltimore Orioles tonight at T-Mobile Park in SoDo, and the weather is absolutely in your corner. Expect clear skies at first pitch with temperatures in the low-to-mid 70s, easing to the upper 60s by the later innings as that light north breeze keeps things comfortable. Gear up with a Seattle Mariners jersey and a Seattle Mariners fitted cap before heading down to the stadium. Still need seats? Get tickets on SeatGeek or Find tickets on StubHub.

What To Wear, Eat & Bring

Short sleeves and sunscreen are your uniform all day. Overnight lows settle near 57°F, so toss a light layer in your bag if you’re staying late for the game. No umbrella needed. Father’s Day is this weekend — the warm, sunny forecast makes it a great time to snag a Father’s Day grilling set for Sunday’s backyard cookout.

For dinner tonight, a simple pasta primavera or veggie stir-fry is a quick way to keep the evening light and patio-friendly. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door.

Next Few Days

Juneteenth (Friday, June 19) is the peak of the warm stretch — mostly sunny with a high near 82°F. Soccer fans, the USA vs. Australia World Cup Group D match is at Lumen Field on Friday, and conditions will be outstanding. Saturday brings a noticeable cooldown; the National Weather Service expects a weak system to pass to the north, dropping highs 5 to 10 degrees back into the upper 60s to mid-70s over the interior with a light marine push. If you’re heading to the Kid Cudi Rebel Ragers Tour at Cascades Amphitheater on Saturday, plan for that cooler air and bring a layer. Stay current with the Seattle weather forecast as the weekend approaches.

Upcoming Home Games

Plan around the forecast — grab tickets, gear up, and see kickoff conditions.

Seattle Mariners vs Baltimore Orioles
Thu, Jun 18 · T-Mobile Park
Seattle Mariners vs Boston Red Sox
Sat, Jun 20 · T-Mobile Park
Seattle Mariners vs Boston Red Sox
Sun, Jun 21 · T-Mobile Park
Seattle Mariners vs Boston Red Sox
Sun, Jun 21 · T-Mobile Park

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