Boise residents can expect to deal with an inversion until about Thursday, according to the National Weather Service.
Cold air is pressing down into the Treasure Valley and the shallow, but strong inversion will only get moved out by a storm, said Les Colin, meteorologist with the National Weather Service.
The high Sunday only got to 23 degrees and the low was 16 degrees. Temperatures are expected to stay below freezing, with a chance for a warm-up Thursday when a Pacific storm pushes through, Colin said.
“First of all it, will weaken the inversion, and second of all create enough wind to push the cold air away,” Colin said.
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Though it’s unseasonably cold, Boise isn’t breaking records just yet, he said.
“It's not typical. It's unusually cold. For here it's not record cold,” Colin said. “It has been colder.”
Thursday could also bring rain or snow. Until then it should be pretty dry. Even so, weekday commuters should take it easy on the roads, since they likely will be slick, he said.
Bogus Basin had higher temperatures than the valley since it was above the inversion. The ski resort saw a high of 33 degrees, Colin said.
Monday could bring a high of 29 degrees with a low of 17 degrees, according to the National Weather Service.