Chubbuck, Idaho 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

423
FXUS65 KPIH 100757
AFDPIH

Area Forecast Discussion
National Weather Service Pocatello ID
157 AM MDT Fri Jul 10 2026

.KEY MESSAGES...

- Heat expected through the weekend with many locations nearing
  or reaching 100 degrees Saturday and Sunday. heat Advisories
  and Excessive Heat Warnings have been issued for many areas.

- Drier weather expected over the weekend into early next week.

&&

.DISCUSSION...
Issued at 155 AM MDT Fri Jul 10 2026

A weak shortwave trough is present over the northern Great
Basin today. The models have been picking up on mid level
moisture around 500 mb associated with that trough. This is
confirmed by satellite imagery during the overnight hours
showing some patchy mid level clouds across the northern Great
Basin. The combination of steep lapse rates with the incoming
heat and the added weak lift from this trough, the models are
picking up on some isolated dry thunderstorms across central and
east Idaho this afternoon. Gusty outflow winds are possible
this afternoon given the steep lapse rates. Most of this
activity should dissipate by 03z this evening.

Still seeing very hot temperatures for the weekend with the center
of a strong ridge moving through the central Great Basin. Temps will
be approaching upper 90s to around 100 on Saturday with 100 degree
temps looking more widespread on Sunday. A combination of heat
advisories and warnings are in effect for the weekend. The warnings
are mainly along the Utah border, closer to the more intense heat.
Bear Lake County is in the advisory with higher base elevations
there offering a couple degrees of very slightly cooler temps;
enough to affect the heat risk values. Breezy conditions are likely
across the weekend as well with the stronger winds across the central
mountains into the upper Snake River Plain. Warnings and advisories
may need to be extended into Monday. The temps on Monday look
slightly cooler as the center of the ridge moves into the northern
Plains, but temps will still be in the upper 90s to around 100
across much of the area. As we head into mid week and beyond the
heat backs off a little with highs expected to be in the low and mid
90s. We get into a monsoonal pattern next week where the storms and
clouds will help take the edge off the heat.

&&

.AVIATION /12Z TAFS THROUGH 12Z SATURDAY/...
Issued at 155 AM MDT Fri Jul 10 2026

Main concern today is isolated dry thunderstorms this afternoon.
Potentially these would affect most sites but probably not SUN
as most of the activity looks like it will be south and east of
there. Will most likely include a PROB30 at most sites this
afternoon for gusty outflow winds as the main impact.

&&

.FIRE WEATHER...
Issued at 155 AM MDT Fri Jul 10 2026

Critical fire weather conditions remain possible over the
weekend as gusty winds are expected. Very hot and dry weather is
likely with temps in the 90s to around 100 and humidities
falling into the lower teens or single digits.

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
Heat Advisory from noon Saturday to 9 PM MDT Sunday for
IDZ051>055-060>068-070-075.
Extreme Heat Warning from noon Saturday to 9 PM MDT Sunday for
IDZ056>059.

&&

$$

DISCUSSION...13
AVIATION...13
FIRE WEATHER...13