Idaho Weather: 06-21-2026 6AM PDT - Scorching Days, Freezing Nights Ahead

Idaho Weather: 06-22-2026 3PM PDT - Red Flag Warning

Your 3pm Idaho weather update Active alerts: Red Flag Warning, Red Flag Warning, Red Flag Warning. around 55 degrees Good afternoon, Idaho. Treasure Valley just hit 87 degrees under a cloudless sky. And that's just the appetizer.

Idaho Weather: 06-22-2026 6AM PDT - Red Flag Warning

Your morning Idaho weather update Active alerts: Red Flag Warning, Red Flag Warning. around 89 degrees A high pressure ridge is sliding in from the west. And it's about to turn up the heat. Here comes a solid stretch of sunshine and climbing temperatures, with today kicking off the warmest week we've seen so far this summer.

Idaho Weather: 06-21-2026 3PM PDT - Red Flag Warning

Your 3pm Idaho weather update Active alerts: Red Flag Warning. around 55 degrees Good afternoon, Idaho. Summer officially arrives today. And the weather's rolling out the welcome mat.

Idaho Weather: 06-21-2026 6AM PDT - Scorching Days, Freezing Nights Ahead

Your morning Idaho weather update around 88 degrees And the weather's celebrating with a gift.

Idaho Weather: 06-21-2026 9PM PDT - Scorching Heat Arrives Idaho

Your 9pm Idaho weather update around 56 degrees A weak cold front slipped through overnight, leaving cooler air and a light wash of rain behind. That's why Treasure Valley woke up to 56 degrees while Eastern Idaho dipped to 48. But don't get used to it — this cooldown is just a blip.