Boise, Idaho – Triple-digit temperatures will grip the Treasure Valley by Tuesday as Idaho braces for a dangerous summer heat surge.
According to the National Weather Service in Boise, highs will climb to 102°F by Tuesday, with little overnight relief as lows remain in the mid-60s. The heat will intensify through midweek, prompting warnings for residents, outdoor workers, and travelers—especially along Interstate 84, where road temperatures could spike even higher. Officials urge hydration, sunscreen, and limiting strenuous activity during peak heat hours from 1 to 6 p.m.
Cooling centers may open if conditions worsen. While no heat advisory is currently posted, forecasters are monitoring for possible alerts.
Boise will see a high near 96°F on Monday, followed by the peak on Tuesday. By Wednesday, highs dip slightly to 97°F, before easing into the low 90s by Thursday. Nights remain mostly clear and warm, offering minimal cooling.
Expect sunny skies and dry conditions all week, with no rain in sight. Winds stay light, offering little relief from the heat dome building across the region.
🔎 Five-Day Forecast for Boise, Idaho:
- Monday (July 7): Sunny and hot, high of 96°F
- Tuesday: Scorching heat, high of 102°F — Stay indoors mid-afternoon
- Wednesday: Mostly sunny, high of 97°F — Slight cooling trend
- Thursday: Sunny and hot, high of 90°F — Continued dry conditions
- Friday: High of 94°F, overnight low near 61°F — Prepare for hot weekend ahead
