The temperature reached 90 degrees Thursday in Roseburg for the first time this year, and hotter weather is on the way, according to the National Weather Service.
It also may be muggy by Southern Oregon standards.
“It’s going to be a little more humid than it typically is when it’s this hot,” forecaster Brett Lutz said today from the weather service’s Medford office. “Out-of-towners would still probably say it’s a dry heat.”
All of Oregon is expected to be in the grip of a heat wave this weekend, with record-breaking temperatures possible in some places, according to the weather service.
Afternoon inland temperatures in Douglas County are expected to be in the low to mid-90s for the next several days. Residents won’t get much relief after dark, with nighttime temperatures expected to remain about 60 degrees.
High temperatures on the coast are expected to be in the mid-70s.
The Columbia Gorge is expected to have the hottest temperatures in the state, with highs of 105 to 110 degrees possible Monday and Tuesday, according to the weather service.
Record temperatures also are possible in Klamath Falls and Northern California. Temperatures are expected to peak on Monday, with an increasing chance of thunderstorms on Tuesday.
The weather service is forecasting that 90-plus temperatures will persist in Southern Oregon through the Fourth of July.
Other high temperatures in Douglas County on Thursday included 88 degrees in Winston, 85 degrees in Glide and 81 degrees at Toketee Falls, according to weather service observations.
Oregon fire officials today urged travelers to be cautious in the state’s forests and leave fireworks at home.
The Umpqua National Forest reminded visitors that fireworks are prohibited in the national forest.
Oregon’s heat wave comes as the Southwest U.S. bakes in extreme temperatures. The hot air mass roasting Arizona, New Mexico, Colorado and Utah is pushing toward the West, Lutz said.
“It’s definitely expanding into our area,” he said.
The weather over the next several days may foreshadow what’s to come. The weather service expects July to be hotter than normal in Southern Oregon, Lutz said.
It’s going to be a little more humid than it typically is when it’s this hot.