Sunny
No major rain signal in the available hourly data.
Prioritize sunscreen, water, and breathable team gear.
Tickets, team gear, and weather gear should support the forecast, not distract from it.
Fans heading to T-Mobile Park for Sunday’s 1:10 PM PDT showdown between the Seattle Mariners and Boston Red Sox are getting a rare Pacific Northwest gift: the National Weather Service forecasts sunny skies, a high near 78°F, and zero percent chance of rain. Clear skies, light west winds, and genuine summer warmth — this is the gameday weather Seattle fans dream about all February.
Game Weather Bottom Line
The numbers are refreshingly simple: sunny all day, high near 78°F at first pitch, west winds of 2 to 8 mph. Precipitation probability sits at zero through the final out. Sunday night drops to a comfortable 57°F under mostly clear skies, so even if the game runs long, you’re not getting cold or wet. No weather drama today — just baseball.
Rain Delay And Wind Risk
Absolutely none. The NWS shows 0% precipitation probability for Sunday, with a clean overnight transition to mostly clear conditions. Winds stay at 2 to 8 mph from the west — calm enough that fly balls carry true and pitchers won’t be working against the elements. Seattle’s atmospheric river reputation is completely irrelevant today. Leave the rain gear at home.
What To Wear And Bring
At 78°F and sunny, the lower bowl will feel warm at first pitch — but T-Mobile Park’s shaded sections and open upper deck can run noticeably cooler with the light breeze off Puget Sound. The smart play is layers you can peel off as the afternoon heats up.
Pack list:
- A Seattle Mariners t-shirt for the warm early innings
- Seattle Mariners fitted cap to block the afternoon sun
- sunscreen stick SPF 50 — the open lower bowl sections offer less shade than you’d expect
- A stadium blanket if you’re in the upper deck or plan to stay into the evening
- A baseball glove if you’re sitting in the bleachers with kids in tow
Tailgating And Arrival Window
This might be the best tailgate day of the Mariners’ season. A high of 78°F, full sun, and summer solstice weekend means the lots around T-Mobile Park will fill up early. Aim for 11:30 AM to lock down your spot before the pregame rush builds.
Tailgate setup:
- portable propane grill for a full cookout spread
- rolling cooler with wheels for easy hauling from the parking structure
- soft cooler 24 can for drinks within arm’s reach of the grill
- Yeti tundra cooler if you’re going all-in with a full afternoon setup
The Mariners sit at 39-39 at home and have dropped two straight — they’ll be hungry to flip the script in front of a packed house on a perfect summer afternoon. Boston comes in at 31-43 away from Fenway, making this a real opportunity for Seattle to grab an important American League win. Get there early, fire up the grill, and bring the energy the M’s need.
Tickets, Team Gear, And Useful Links
Still hunting for seats? Get tickets on SeatGeek or Find tickets on StubHub — Sunday afternoon games in weather like this move faster than you’d expect. Dress the part with a Seattle Mariners jersey before you head out, pair it with a Seattle Mariners fitted cap for the sunny afternoon, and don’t leave home without that sunscreen stick SPF 50. On a clear day at T-Mobile Park, the sun is very real.