Portland

Gray Skies Grip Portland Before Fourth Of July Warm-Up

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Published on June 30, 2026
Gray Skies Grip Portland Before Fourth Of July Warm-UpSource: Google Street View

Portland is waking up under a solid blanket of cloud cover this morning, with Portland International Airport (KPDX) checking in at about 57°F and overcast. This Tuesday, June 30, 2026, should top out near 69°F as a light west wind keeps most neighborhoods stuck in the upper 60s. Skies stay mostly cloudy through the day, with only a slight chance of a stray sprinkle over the higher hills. If you are heading outside, plan on a light layer early and a jacket handy for the cooler evening.

This Week's Outlook And Marine Notes

Mostly cloudy weather hangs around through Thursday, with highs generally in the upper 60s to low 70s and overnight lows parked near 51°F. A gradual warm-up starts to kick in Friday and builds into the Independence Day weekend. Forecasters give inland valleys a 70–90% chance of cracking 80°F by the holiday weekend, including Saturday, July 4, 2026, while coastal spots are expected to hold in the 60s. The odds of hitting 90°F stay low at about 1–10%. Out on the water, northwest winds and steep seas have triggered Small Craft Advisories for parts of the coastal waters and the Columbia River Bar through at least 11 AM PDT Tuesday and into Wednesday in some zones, according to the National Weather Service Portland.

Boaters And Commuters

Boaters are urged to steer clear of the Columbia River Bar during the strong ebb this morning, with steep, choppy seas of about 7 to 10 feet and gusty northwest winds turning crossings hazardous. On land, drivers and transit riders get a gray but mostly dry commute, with light winds and low clouds keeping any major weather headaches off the roads. If your weekend plans take you inland, expect sunnier afternoons starting Friday and comfortably cool nights in the 50s.

Quick Forecast

Today through Thursday: Mostly cloudy, with highs roughly 69–73°F and overnight lows near 51°F. A more noticeable warm-up arrives Friday into the holiday weekend, with inland highs climbing into the upper 70s to low 80s by Saturday, July 4, 2026; widespread extreme heat remains unlikely. For current watches and marine notices, check the National Weather Service.