textproduct: Boise

This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.

KEY MESSAGES

- Above normal temperatures continuing through next week.

- Tuesday is the hottest day and will be accompanied by gusty winds and very dry conditions.

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

SHORT TERM /Through Monday Night/

As an upper ridge builds along the coast, a pair of shortwave troughs dropping down the east side will keep the region under northwest flow. This will slow our heating while keeping dry, and at times breezy conditions through Sunday. The upper ridge expands inland on Monday, pushing valleys temperatures into the low 90s. A weak upper wave embedded in the flow will drag clouds across the area late Monday/Monday night. It remains dry through Monday night as stable conditions aloft cap any chance for precipitation to develop.

LONG TERM /Tuesday through Saturday/

Tuesday will be the warmest day for most the area this week, with valley locations reaching the mid to upper 90s. The ridge bringing the warm temps begins to flatten as a Canadian trough passes to the north. The flattening will drop temps by a few degrees Wednesday and Thursday, but also bring wind gusts 30 to 40 mph Tuesday evening with winds remaining elevated through the week. Winds are strongest in the Snake Plain Wednesday and Thursday. By Friday, the ridge opens back up and temperatures in valleys again climb to the mid 90s before another weak low moves in that evening. This low will bring a slight chance of thunderstorms along the Nevada border Friday and into Central Idaho Saturday.

AVIATION /18Z Saturday through Sunday/

Issued 1206 PM MDT SAT JUN 13 2026 VFR. Surface winds: Becoming NW-N 10-20 kt with gusts to 20-30 kt this afternoon. Winds aloft at 10kft MSL: NW-N 10-20 kt.

KBOI...VFR. Surface winds: W-N 5-15 kt with afternoon gusts to 20 kt.

Sunday Outlook...VFR. A few afternoon mountain cumulus. Surface winds: variable 5-15 kt Sunday AM, then NW-NE 5-15 kt with gusts around 20 kt in the afternoon.

BOI WATCHES/WARNINGS/ADVISORIES

ID...None.

OR...None.

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