Extreme heat warning for Southwest Washington from Sunday to Tuesday

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The NWS Portland OR released an extreme heat warning at 9:13 p.m. on Thursday valid from Sunday 11 a.m. until Tuesday 11 p.m. The warning is for Inner Vancouver Metro, East Clark County Lowlands and West Columbia River Gorge - SR 14.

"Dangerously hot conditions with temperatures between 95 and 100 degrees F expected," says the NWS. "Peak heating days will be Sunday and Monday with 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 63 to 67 degrees F will lead to poor overnight relief. There is currently a 20-30% chance that night time temperatures remain above 70 degrees Sunday night into Monday morning, and a 5-10% chance Monday night into Tuesday morning."

"Heat related illnesses increase significantly during extreme heat events," explains the NWS.

This warning is in effect until Tuesday at 11 p.m.

Ways to stay safe in the heat according to the NWS

• Consume plenty of fluids to stay hydrated.
• Find cool shelter: Stay in an air-conditioned room.
• Stay out of the sun, and check up on relatives and neighbors.
• Child and pet safety: Do not leave young children and pets unattended in vehicles when car interiors can reach lethal temperatures in a matter of minutes.
• Be cautious outdoors: Take extra precautions if you work or spend time outside.
• Find the right time: Consider rescheduling strenuous activities to early morning or evening if possible.
• Be alert to warning signs: Educate yourself about the signs and symptoms of heat exhaustion and heat stroke.
• Dress appropriately: Wear lightweight, loose-fitting clothing to stay comfortable.

To reduce risk during outdoor work, the Occupational Safety and Health Administration (OSHA) recommends scheduling frequent rest breaks in shaded or air-conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. In an emergency, call 911.

Source: The National Weather Service

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This story was originally published June 11, 2026 at 9:16 PM.