Extreme Heat Watch

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Portland OR 250 AM PDT Wed Aug 20 2025 ...EXTREME HEAT WATCH IN EFFECT FROM FRIDAY MORNING THROUGH LATE SUNDAY NIGHT... * WHAT...Dangerously hot conditions with temperatures of 95 to 100 degrees F possible. Overnight temperatures will range from 60 to 68 degrees F on Friday night and up to 70 degrees on Saturday night, warmest for locations north of Salem. * WHERE...Central and Southern Willamette Valley, Greater Vancouver Metro, Lower Columbia River and Cowlitz River Valleys, Portland Metro Hills, Tualatin Valley, Inner Portland Metro, West Columbia River Gorge of Oregon above 500 ft, and Clackamas County Cascade Foothills. * WHEN...From Friday morning through late Sunday night. * IMPACTS...Heat related illnesses increase significantly during extreme heat events, especially for those spending time outdoors or without access to adequate cooling. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in a cool place during the heat of the day, stay out of the sunshine, and check up on relatives and neighbors. For those without air conditioning, use fans to keep air moving. Keeps windows closed during the day and open at night, unless air quality is degraded due to wildfire smoke. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.