textproduct: Pocatello

KEY MESSAGES

- Prolonged Quiet Weather Period: High pressure and dry air will keep eastern Idaho completely dry with minimal cloud cover through the upcoming weekend and into early October.

- Unseasonable Late-Week Warmth: An amplifying Great Basin ridge will boost lower-elevation temperatures into the upper 70s and lower 80s through the weekend.

- No Fall-Like Weather in Sight: High confidence exists for above-normal temperatures and suppressed precipitation extending through the first full week of October.

DISCUSSION

Issued at 150 AM MDT Fri Oct 2 2026

High pressure will remain in control of our weather pattern well into next week, resulting in a prolonged period of warm and dry conditions. Ensembles indicate a weak shortwave passing to our north may flatten the ridge a bit early next week, but impacts look to be minimal with little to no precipitation and only a very minor cooldown. Temperatures will run above climatological norms through at least late next week and likely beyond. As the ridge amplifies over the region, peak warmth will occur during the weekend timeframe. Daytime temperatures on Sunday will run around 10 degrees above normal with valley locations warming into the low to mid-80s.

AVIATION /00Z TAFS THROUGH 00Z SATURDAY/

Issued at 527 PM MDT Thu Oct 1 2026

Expect VFR conditions through the period (and the foreseeable future) with high pressure over our area. For tonight into tomorrow, expect a few high clouds, mainly over our northern areas, moving through the high pressure ridge. Expect afternoon gusts of around 15 to 20kts for most TAF sites with the exception of BYI.

FIRE WEATHER

Issued at 150 AM MDT Fri Oct 2 2026

High pressure will remain in control of our weather pattern well into next week, resulting in a prolonged period of warm and dry conditions. Ensembles indicate a weak shortwave passing to our north may flatten the ridge a bit early next week, but impacts look to be minimal with little to no precipitation and only a minor cooldown. Temperatures will run above climatological norms through at least late next week and likely beyond. As the ridge amplifies over the region, peak warmth will occur during the weekend timeframe. Daytime temperatures on Sunday will run around 10 degrees above normal with valley locations warming into the low to mid-80s. Minimum humidity is forecast to drop below 15 percent in localized areas beginning today with widespread 15 to 20 percent min RH values on Sunday. Winds will generally remain light outside of occasional breezy afternoon wind gusts.

PIH WATCHES/WARNINGS/ADVISORIES

None.