Temperatures this morning were the coolest many areas have seen in a couple of weeks. Boise hit 60° and McCall dipped into the lower 40s. High temperatures will be close to normal in the mid 90s in the Treasure Valley, lower 90s in the Magic Valley, and low to mid 80s in the mountains.
Wildfire smoke from fires in California and Oregon filters into the region this evening, but begins to clear on Wednesday. Hazy sunshine is expected but there should not be impact on air quality.
As high pressure centered over the Desert Southwest builds back into the Pacific Northwest, triple digit temperatures return to the Treasure Valley starting on Wednesday and continuing into the weekend. The heat peaks on Friday and Saturday as temperatures will climb to 103-107° in the Treasure Valley, 99-103° in the Magic Valley, around 90° in mountain valleys, and in the 80s for higher elevations.
The high pressure ridge shifts further east next week putting the region under southwest flow. Some monsoon moisture will reach the region causing daily showers and thunderstorms, primarily in the mountains. Increased cloud cover associated with the monsoon moisture will keep temperatures a few degrees "cooler" next week.
