Seattle weather: Hottest day of 2026 on Monday

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Seattle weather alert day with temps in the 90's

FOX 13 Adam Gehrke has your seven-day forecast. 

For the second day in a row, Western Washington will be dealing with record heat. Many fans will be heading out to watch parties around town, or to our area's lakes and rivers.

Be sure to stay hydrated, take breaks in the shade and, if possible, wear light-colored, loose-fitting clothing.

It will be another hot day around the region.  Be sure to stay hydrated if you are outdoors. 

Record heat for Seattle FIFA game

A heat advisory remains in effect through early Tuesday morning. Be sure to check in with those who may be vulnerable to the heat. While Monday is expected to be the hottest day of the year, overnight lows will also remain mild, making uncomfortable sleeping conditions. 

Seattle weather requires extra precautions, including hydration, shade, and frequent cooling breaks.

Onshore flow increasing beginning Monday evening will bring cooler air along with more clouds. Look for temperatures to drop almost 15 degrees by Tuesday. 

Onshore flow takes over Monday evening with cooler air and more clouds.

Summer weather all week long

The week ahead will be dry with near seasonal temperatures. We will see a brief warm up for the next FIFA Seattle game on Friday. Plenty of sun and warmish temperatures for the first day of summer on Sunday.

Cooling off by Tuesday with another brief warm up on Friday. (FOX13 Seattle)

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The Source: Information in this story comes from weather models interpreted by the FOX 13 Seattle weather team.

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