textproduct: Pocatello

KEY MESSAGES

- Mild afternoon highs with mostly dry weather through early week.

- Wetter and cooler conditions return for Thursday and Friday.

DISCUSSION

Issued at 104 AM MDT Mon Oct 19 2026

High pressure will produce another dry day today with highs for our valley communities ranging from the mid 60s to low 70s. We are watching a low pressure system off the coast of the Pacific Northwest. This low will be working down the coast, eventually stalling off the central California coast. Some moisture from this system will be working into the region Tuesday in the form of isolated showers and thunderstorms. Possibly could see isolated convection into Wednesday as well although the high res models haven't resolved that quite yet.

As we move into Thursday the low will quickly move inland and lift towards our region. This will bring good chances for precipitation to our region for Thursday and Friday. The low will move east Friday with residual moisture streaming into the region from the northwest along with much colder temperatures. Snow levels with this event look high, falling to 7 or 8000 feet on Friday. Most of the moisture exits the region Friday night when snow levels approach valley floors. In terms of qpf, the mean for this event is sitting at 0.25 to 0.50 inches for the Magic Valley with up to an inch for the central mountains and around an inch or higher for the Snake River Plain and eastern highlands.

AVIATION /12Z TAFS THROUGH 12Z TUESDAY/

Issued at 104 AM MDT Mon Oct 19 2026

High pressure will produce vfr conditions along with light winds at TAF sites today.

FIRE WEATHER

Issued at 104 AM MDT Mon Oct 19 2026

Warm and dry weather is likely today with peak gusts around 20 mph. Isolated showers and storms is expected for Tuesday and Wednesday with peak wind gusts around 20 mph or less both days.

PIH WATCHES/WARNINGS/ADVISORIES

None.