Extreme Heat Watch

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Portland OR 1001 AM PDT Wed Jun 10 2026 ...EXTREME HEAT WATCH IN EFFECT FROM SUNDAY MORNING THROUGH TUESDAY EVENING... * WHAT...Dangerously hot conditions with temperatures between 95 and 100 degrees possible. * WHERE...Portland Metro Hills, Central Willamette Valley, and Lower Columbia River. * WHEN...From Sunday morning through Tuesday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Low temperatures between 63 to 67 degrees are possible for Monday morning and Tuesday morning. However, there is a 5-15% chance low temperatures will remain above 70 degrees Monday morning and a 15-30% chance Tuesday morning, which would lead to poor overnight relief. 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. Monitor the latest forecasts and warnings for updates. If you do not have air conditioning in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the heat.