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Portland area faces unhealthy air quality and high temperatures due to wildfire smoke and heat.

The Portland area is currently experiencing unhealthy air quality and high temperatures caused by lingering wildfire smoke. Air quality sensors across the region showed unhealthy levels throughout the day, with an air quality advisory remaining in effect for tomorrow. Temperatures are expected to remain hot, with highs likely reaching the low to mid-90s. While thick smoke may keep some areas cooler, thinner smoke will allow temperatures to climb higher. A shift to onshore flow is expected by tomorrow afternoon, which will begin to clear the smoke and haze along the coast and inland by Wednesday night. By Thursday, skies are are expected to clear and air quality will improve. However, Wednesday and Thursday will continue to be designated as First Alert Weather Days due to the ongoing heat and smoke. Conditions will begin to cool slightly by the end of the week, returning to average temperatures by early next week.

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