Heat Advisory issued June 20 at 10:35PM PDT until June 23 at 11:00PM PDT by NWS Portland OR
Issue date: 2026-06-21T05:35+00:00
* WHAT...Temperatures up to 92 to 97 expected. * WHERE...Lower Columbia River and Cowlitz River Valleys, Portland West Hills and Chehalem Mountain, North Clark County Lowlands, and South Washington Cascade Foothills. * WHEN...From 11 AM Monday to 11 PM PDT Tuesday. * IMPACTS...Hot temperatures may cause heat illnesses.
