MYNORTHWEST WEATHER

Seattle could see its first 80-degree day next week

Apr 29, 2026, 1:09 PM | Updated: Apr 30, 2026, 12:31 pm

seattle sunshine record-breaking heat wave...

The sun peeks through the trees at the Seattle Center. (Photo: Julia Dallas, MyNorthwest)

(Photo: Julia Dallas, MyNorthwest)

After months of gray and drizzle, Seattle has officially defrosted.

The city could hit 80 degrees as early as this weekend, with the upper 70s sticking around into next week.

Seattle is expected to hit at least 79 degrees on Sunday, and Monday is anticipated to reach 77 degrees, as forecast by the National Weather Service (NWS).

Warm weather will stick around in Seattle

Even if Seattle doesn’t reach the 80-degree mark, the warmest stretch of the year will kick off in May, according to meteorologist Scott Sistek, who runs Emerald City Weather Blog. But for those who prefer cooler weather, Sistek said there are plenty of temperate days sprinkled throughout the extended forecast.

Thursday is forecast to be mostly sunny, with a high near 72 degrees, while Friday is expected to be partly sunny, with a high near 71 degrees, according to NWS. Saturday, which is opening day for boating, is also forecast to be partly sunny, with a high near 71 degrees. Sistek noted Seattle has had some crazy weather in the past for opening day, so this year should be a nice break.

The big warm-up happens Sunday and sticks around into Monday before cooling back down on Tuesday, when NWS forecasts a high of only 71 degrees.

While weather models currently hover slightly below 80 degrees, Sistek said those models tend to underestimate warming in the longer range, meaning there is a strong chance Seattle will hit that mark next week.

Those planning to cool off by the water should also keep in mind that cold water can kill, even on hot summer days, according to Seattle Parks and Recreation. City officials recommend staying close to shore and resting when cold or tired. They also urge people to wear a life vest when on a boat, inner tube, or raft, and while swimming in lakes and rivers.

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