textproduct: Boise

KEY MESSAGES

- Cold low temperatures at or near freezing in mountain valleys tomorrow morning. - West/northwest winds 20 to 30 mph with gusts up to 45 mph in south-central Idaho this afternoon and early evening.

- Isolated showers and thunderstorms in northern Baker County, OR and the West Central Mountains this afternoon. - Dry and gradually warmer through the end of this week.

SHORT TERM /Through Friday Night/

A few showers are lingering over high terrain in central Idaho this afternoon, with a weak thunderstorm near Riggins, ID pushing east. The trough that brought this push of precipitation will continue to move east later today, keeping winds gusty over the Snake River Plain and continuing isolated high terrain showers through the early evening. This 10-20% chance of showers and thunderstorms exists over northeastern Oregon and Central Idaho, primarily northeast of Baker City, OR and north of McCall, ID. The coolest temperatures of the week will occur today, with highs generally in the mid to high 60s at lower elevations. Breezy northwest winds across the region will continue through the evening, tapering off after sunset. The strongest winds will be in the Magic Valley and on high terrain east of Mountain Home, ID with occasional gusts up to 45 mph. A ridge of high pressure will then build in over the west coast, bringing a steady warming and drying trend to the region through Friday. Winds will generally be light and terrain driven through Friday morning, with breezy northerly winds expected on Friday evening as a shortwave trough moves into northern Idaho- Montana.

LONG TERM /Saturday through Wednesday/

A sharp upper ridge along the west coast will gradually shift to the Interior West next week. This will result in dry and warming weather with temperatures reaching 10-15 degrees above normal by Tuesday. The current forecast has bumped hotter locations into mid-upper 90s which continues to be on the high end of the temperature/thickness envelope of the operational and AI models. For now long range ensemble mean (HREF) is showing a 20-50% chance of reaching 95 degrees next Tue/Wed in the Snake Plain between Ontario and Hagerman. Though early, there is model agreement that a cooler trough returns to the Pac NW late next week.

AVIATION /18Z Wednesday through Thursday/

Issued 1140 AM MDT WED JUN 10 2026 Lower ceilings and scattered rain/snow showers obscuring mtns across e-central Oregon and w-central Idaho through the afternoon (mostly north of KBKE-KMYL-KSNT line). VFR to the south with scattered mtn cumulus. Surface winds...W-NW 10-20 kt with gusts to 35 kt through sunset, becoming 5-15 kt overnight.

KBOI...VFR. Gusty northwest winds will drop to less than 10 kt overnight and Thursday.

BOI WATCHES/WARNINGS/ADVISORIES

ID...Wind Advisory until 7 PM MDT this evening for IDZ014>016-028- 030. OR...None.