Portland on Wednesday could see its first 100-degree day this year as temperatures climb starting Tuesday.
The National Weather Service has issued heat advisories throughout the state, with Wednesday likely the hottest day of the week, before a relative cooldown Thursday.
Areas in the Willamette Valley and southern Oregon are expected to heat up significantly, with Medford likely the hottest spot in the state Wednesday with a predicted 103-degree high, said Tyler Kranz, the lead meteorologist for the National Weather Service’s Portland office…