Portland woke up to a hazy start Tuesday, then got blasted by a hot, mostly sunny afternoon, with highs climbing into the mid 90s across the metro. A Heat Advisory stays in place through 11 p.m. tonight, with many inland neighborhoods running the hottest. Overnight lows will only dip into the low 60s, so anyone without air conditioning should brace for a warm, not-so-restful night.
Today: Heat And Haze
Expect a dry afternoon with a high near 95°F and light north winds around 1 to 6 mph. That is manageable for quick errands, but it can become risky for extended outdoor work or strenuous activity. The advisory highlights a widespread Moderate HeatRisk across interior valleys and urges people to drink plenty of water, seek shade, and keep tabs on vulnerable friends, family, and neighbors.
Forecasters say Wednesday should ease up a bit, with highs closer to 90°F as onshore flow increases and brings in some cooler marine air. A more pronounced pattern change is expected to roll in late Thursday, with showers and likely rain from Thursday night into Friday and continuing into the weekend. According to NWS Portland, gusts up to around 22 mph are possible Wednesday afternoon in parts of the metro.
Cooling Relief And Resources
Multnomah County has opened daytime cooling centers, including sites in Gresham and at Bud Clark Commons in northwest Portland, and is also promoting dozens of additional "cool spaces" such as libraries and community centers. If you need help locating a cool spot or arranging transportation to a cooling site, dial 2-1-1. The county is providing interactive maps and daily updates on available locations.
Officials note that cooling centers offer water and shade, and they encourage residents to check in on older adults, people with medical conditions, and homebound neighbors during the heat. Visit Multnomah County for the full list of sites and the latest details.
Late Week Changes
A large scale pattern shift is expected late Thursday, which should knock temperatures down and bring steadier rain into Friday and Saturday. The Cascades are likely to see the heaviest rainfall, while the valley picks up lighter but generally welcome showers.
Saturday carries a slight chance of afternoon thunderstorms, which could bring brief heavy downpours and gusty, erratic winds in isolated cells. If you have weekend outdoor plans, build in some flexibility and keep a light rain layer handy.
Quick Tips
Stay on top of hydration, avoid strenuous outdoor activity during the afternoon peak, and never leave people or pets in parked cars, even for a short time. Check on elderly or medically vulnerable neighbors, and plan yard work or exercise for the cooler morning or evening hours. For cooling center locations and the latest heat guidance, use the county resource page linked above.
