Friday is expected to be the eighth day in a row Boise sees temperatures of more than 100 degrees. If that trend continues until Sunday, it will shatter the current record for consecutive days over 100 degrees as measured at the Boise Airport.
The record stands at nine days in a row, set in 2003 and matched in 2006, according to Megan Thimmesch, meteorologist for the National Weather Service.
And if you thought the month just ended was unusually hot, you’re officially correct: It was the hottest June in Boise ever, with a mean high temperature of 90.8 degrees, up from 89.9 degrees in 1876, the weather service announced Thursday. The month posted five days hotter than 100 degrees and 16 days hotter than 90 degrees.
And this past Sunday, June 28, became the hottest June day ever in Boise when the temperature hit 110 degrees. The previous June record holder, set in 1940, was 109 degrees.
Boise likely won’t see challenges to high temperatures recorded on a single day in the coming week. Record temperatures for the period hover around 106 degrees, and the predicted temperatures for the week ahead are just breaking 100 degrees, according to the National Weather Service.
Residents shouldn’t expect a last-minute respite for the holiday weekend, Thimmesch said.
“There are going to be thunderstorms well to our south, but we don’t have any in the forecast in the Treasure Valley,” she said.
The area may cool down to the mid-90s by Wednesday, Thimmesch said.
The dry conditions over the weekend could lead to more hazardous fire conditions, she said.
“With holidays it draws great concern because of how dry it is, and how hot it’s going to be,” said Carrie Bilbao, spokeswoman for the Bureau of Land Management. “We’re gearing up for a busy weekend.”
Bilbao urged residents to be cautious with campfires, fireworks and when firing weapons. People who cause wildland fires on public lands are responsible for the cost of putting them out, she said.
“If they leave a campfire unattended, they could be responsible for all suppression costs,” she said.
This year has been a particularly intense fire season so far, Bilbao said, so residents should take extra care with fire safety.
“What we’ve been noticing, though, over the past month is fire behavior that we (typically) see in late July and August. The fires are getting a lot bigger, a lot faster,” she said. “June kind of hit us pretty hard.”