Portland is starting the week on a cool, clear note this Monday, July 13, 2026, but the chill will not last long. Portland International Airport reported about 55°F early this morning with a light north-northwest breeze, and the day is expected to stay mostly sunny. By afternoon, temperatures should climb to around 87°F before slipping back into the upper 50s overnight. The warm pattern sticks around all week, with inland spots feeling the heat the most.
Afternoons Warm, Nights Stay Cool
Highs are forecast to push into the upper 80s on Tuesday, July 14, 2026, and could reach the low 90s by the weekend (July 18–19, 2026), while coastal neighborhoods hang onto much cooler conditions. A weak disturbance is set to move through late Wednesday night into Thursday morning, bringing a 20–40% chance of scattered showers, with isolated heavier pockets of rain possible in parts of northwest Oregon and southwest Washington.
Out on the water, boaters should pay close attention. A Small Craft Advisory is in effect for the Columbia River Bar early Monday and again Tuesday morning, with choppy seas and strong ebb currents expected. Forecasters at the National Weather Service say inland heat is likely to return Friday and continue into the weekend.
Smoke, Cooling Options And What To Do
Smoke from a wildfire west of Shady Cove could send a veil of haze aloft over some interior valleys, although forecasters do not expect it to mix down to the surface across most of the metro area. If the heat gets to be too much, Multnomah County advises residents to call 3-1-1 for information about cooling center locations and eligibility.
Health officials recommend staying hydrated, keeping strenuous outdoor work to the cooler morning hours, and making sure medications and pets are stored or resting in a cool place during the hottest part of the day. If you are planning to be outside, try to schedule activities for early morning or evening and bring plenty of water. Check the latest local forecast before boating or heading into the Cascades, and keep an eye out for any late-week changes as the midweek system approaches Wednesday night.
