textproduct: Boise

KEY MESSAGES

- Above normal temperatures through next week with Tuesday and Friday being the hottest days. - The hot temperatures Tuesday and Wednesday will be accompanied by gusty winds and very dry conditions.

- A chance of showers and thunderstorms returns to the area Friday and Saturday.

SHORT TERM /Through Tuesday Night/

Upper ridging will extend into the area on Monday pushing temperatures up 3-6 degrees from today. A more westerly component in the flow aloft will increase moisture and a passing upper wave will turn that moisture into mid-high cloud cover late Monday/Monday night. Otherwise it remains dry at the surface. Tuesday will be hot, dry and breezy as northwest flow strengthens aloft. High temperatures will reach 10-15 degrees above normal, putting lower elevations well into the 90s. Tuesday afternoon will see gusty winds develop as flow aloft mixes to the surface. The strongest winds will impact higher mtns and the Snake Plain east of Mountain Home with gusts of 25 to 35 mph expected. A dry cold frontal passage Tuesday evening will ramp up winds/gusts across the remainder of area and wouldn't be surprised to see gusts hit 45 mph in the typically windier spots.

LONG TERM /Wednesday through Sunday/

Wednesday will be 5-10 degrees cooler than Tuesday as the trough to our north brings a weak dry cold front through. The post- frontal winds Wednesday with a still dry atmosphere could carry critical fire weather from Tuesday into Wednesday. Warming and drying picks right back up for about 10 degrees above normal Thursday and 10-15 degrees above normal Friday, putting valley temperatures just a few degrees below Tuesday's forecast. The heat Friday and resulting dryness comes just before another cold front that evening. This front and the associated upper trough will bring thunderstorms to much of the area, particularly the Nevada border and SE Oregon. This could create a critical fire weather set up as the low breaks down the ridge and puts lightning over a very dry environment. Winds outside of storms Friday evening will be gusting up to 20-25 mph. As the low moves into Idaho on Saturday, the thunderstorms follow suit, focused from the ID-NV border up through central Idaho. Behind the trough winds begin to pick up in the upper Snake Plain Saturday and Sunday.

AVIATION /18Z Sunday through Monday/

Issued 1219 PM MDT SUN JUN 14 2026 VFR with clear skies. Surface winds: Variable becoming W-NW 5-15 kt this afternoon. Variable up to 10 kt tonight. KBOI...VFR with clear skies. Surface winds: Becoming NW 8-12 kt, brief gusts up to 18 kt possible this afternoon. S-SE 5-10 kt tonight.

BOI WATCHES/WARNINGS/ADVISORIES

ID...None.

OR...None.