Extreme Heat Watch

Locations Affected

Portland, OR ∙ Salem, OR ∙ Vancouver, WA ∙ Gresham, OR ∙ Hillsboro, OR ∙ Beaverton, OR ∙ Sandy, OR ∙ Salmon Creek, WA ∙ Warren, OR ∙ Jennings Lodge, OR

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Portland OR 1142 AM PDT Thu Jun 11 2026 ...EXTREME HEAT WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH TUESDAY EVENING... * WHAT...Dangerously hot conditions with temperatures between 95 and 100 degrees F possible. * WHERE...Greater Portland Metro, Central Willamette Valley, Western Columbia River Gorge, Lower Columbia River, Inner Vancouver Metro, and East Clark County Lowlands. * WHEN...From Sunday morning through Tuesday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Peak heating days will be Sunday and Monday with the potential for a slight cool down on Tuesday. Overnight temperatures will remain elevated Sunday night into Monday morning, and Monday night into Tuesday morning. Night time temperatures ranging from 60-65 degrees will lead to poor overnight recovery with less relief. There is currently around a 10% chance of Extreme HeatRisk for Portland proper and the West Hills on Monday, with a 25% chance of a high temperature of 100 degrees F. Conditions remain elevated on Tuesday, though confidence is lower in regards to whether significant heat will persist. 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.

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