FXUS65 KBOI 150914
AFDBOI

Area Forecast Discussion
National Weather Service Boise ID
314 AM MDT Thu Oct 15 2026

.KEY MESSAGES...
- Warm and dry conditions through the weekend with temperatures
  10 to 15 degrees above normal Friday and Saturday.

- Active pattern returning cooler conditions and precipitation
  chances Tuesday through Thursday. 

&&

.SHORT TERM /Through Saturday Night/...The area will remain 
under strong ridging as the Pacific high continues to build in 
over the western CONUS. Dry conditions and warmer than normal 
temperatures will continue today through Saturday. Clear skies 
and colder nighttime temperatures will favor the development of 
frosts and patchy fog this morning and Friday morning. Friday 
and Saturday could see daytime temperatures 10 to 15 degrees 
above normal as the ridge centers right over our area. A weak, 
dry shortwave trough will dig across the northwest region 
Saturday, bringing a dry cold front across the area late 
Saturday. Breezy northwest winds, mainly over upper Treasure 
Valley and Magic Valley areas, are expected on Saturday with 
this frontal passage. 

&&

.LONG TERM /Sunday through Thursday/...The aforementioned dry 
cold front moving across our area Sunday will help drop peak 
temperatures a few degrees, but will still be 5 to 10 degrees above 
normal. Monday through Tuesday, our area will come under a strong 
southwest flow ahead of an incoming Pacific upper low from the Gulf 
of Alaska. This flow pattern will keep Monday slightly warmer than 
normal with elevated wind breezes from the south. There is better 
long-term guidance agreement on the upper low diving south along the 
northwest and California coasts before moving inland into the Great 
Basin Tuesday through Thursday. This pattern will return a cooldown 
and chances of precipitation over our area late Tuesday through 
Thursday. There remains some uncertainty over the magnitude and 
coverage extent of this potential multi-day precipitation event next 
week, especially for Tuesday and Wednesday. For now, next Thursday 
is looking to have the highest potential for areawide precipitation 
as the upper low crosses the Great Basin. 

&&

.AVIATION /06Z Thursday through Friday/...
Issued 1140 PM MDT WED OCT 14 2026
VFR. Areas of smoke from prescribed burning near KBNO KMYL. Winds 
aloft at 10kft MSL: NE 10-20kt. Surface winds: NW 5-10kt overnight, 
becoming light then E-SE 5-10kt Thu afternoon.

KBOI...VFR. NW 5-10kt overnight, then shifting SE 5-10kt by Thu 
afternoon.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...None.

OR...None.

&&

$$

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SHORT TERM...JY
LONG TERM....JY
AVIATION.....KA