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Western Oregon Under Heat Advisory, Up to 100; Coast Mostly Cooler

Published 07/02/23 at 5:31 a.m.
y Oregon Coast Beach Connection staff

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(Oregon Coast) – 100-degree weather may be coming to many places in western Oregon on the Fourth of July and Wednesday as a major heatwave will settle over the region. Even the Oregon Coast Range will see some unusually high temps, making for a heat advisory for areas like Portland, Vancouver, Salem, Silverton, Albany, Ashland and Eugene. Look for highs from the low 90s to close to 100 degrees. (Photos Oregon Coast Beach Connection: above, near Pacific City)

Meanwhile, the Oregon coast will be quite a respite from it all, but warmer than usual and in the 70s.

The NWS issued the heat advisories for the Portland Metro area, Willamette Valley and southern Oregon, in effect from early Tuesday morning through late on Wednesday night.

“Maximum temperatures of 92 to 102 degrees expected Tuesday and Wednesday,” the NWS said. “Hottest temperatures will be across inner portions of the Portland, Vancouver, Hillsboro, and Salem metropolitan areas.”


Beyond that, nighttime lows will be unusually high, struggling to get below 70 degrees. This will make sleeping uncomfortable for many.

“Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors,” the NWS said. “Young children and pets should never be left unattended in vehicles under any circumstances.”

The NWS said you should check up on neighbors and relatives.

If you work or spend time outdoors, the NWS said you should consider rescheduling strenuous activities to early mornings or evenings.

Washington Coast Weather - Oregon Coast Weather

“Know the signs and symptoms of heat exhaustion and heat stroke,” the NWS said. “Wear lightweight and loose fitting clothing when possible.”

The NWS said models have been consistent with this heatwave, indicating a big jump in highs from Monday, where it will be in the 80s to 90s inland, and around 70 along the Oregon coast. Tuesday shoots upwards quickly, becoming the 90s and maybe higher on that day and Wednesday.

Records could be broken.

“Interestingly, if temperatures do reach this warm, it will be either the warmest or 2nd warmest 4th of July for many locations,” the NWS said. “Will be cooler along the coast, where cooler onshore winds will push cooler air back onshore by late afternoon. So, coastal highs generally will be held in the 70s, though few spots will reach lower to middle 80s, but those will be well away from the beaches.”

The northern half of the Oregon coast will be cooler than the southern half, with areas like Lincoln City and Rockaway Beach clocking in at around the low 70s, while spots like Coos Bay or Port Orford get into the mid 70s.

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Andre' GW Hagestedt is editor, owner and primary photographer / videographer of Oregon Coast Beach Connection, an online publication that sees over 1 million pageviews per month. He is also author of several books about the coast.

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Keywords: Oregon Coast weather alert, extreme heat, heat advisory, Portland, Salem, Silver, Ashland, Coos Bay, Bandon, Seaside, Cannon Beach, Depoe Bay