textproduct: Pocatello

KEY MESSAGES

- Showers and storms arrive today.

- Best chances are Thursday and Friday.

- Drier weather returns over the weekend.

DISCUSSION

Issued at 103 AM MDT Wed Sep 16 2026

Main focus over the next couple of days will be a low pressure system that is currently over Oregon. This system will bring rounds of showers and thunderstorms to the area starting this afternoon and continuing through Saturday. Coverage this afternoon and this evening looks very isolated. But this system will be tapping into some monsoon moisture and advecting that northward late tonight into Thursday. This will produce good chances for showers and thunderstorms for Thursday and Friday. By Saturday, the low will be moving through our area and into Wyoming. This will shift the better chances for showers into the eastern highlands. In terms of qpf, this doesn't appear to be an overly exciting storm. Most areas will probably see less than 0.25 inches over the course of the next few days. QPF over the eastern highlands may perform a little better with up to 0.50 inches possible.

AVIATION /12Z TAFS THROUGH 12Z THURSDAY/

Issued at 103 AM MDT Wed Sep 16 2026

Increasing clouds this afternoon into the evening but vfr conditions will hold. Isoalted thunderstorms this afternoon will likely remain away from TAF locations this afternoon. Shower activity will increase tonight with showers becoming more likely around TAF sites.

FIRE WEATHER

Issued at 103 AM MDT Wed Sep 16 2026

Humidities will begin increasing today as monsoonal moisture works into the region. Areas across the central mountains could still see humidities in the 15-25 percent range today while most of southeast Idaho will see humidities in the 25-35 percent range. Those values will increase over the next couple days. A few gusts to 25 mph will be possible across the southern highlands this afternoon. Wind gusts to 25 mph will become more widespread on Thursday.

PIH WATCHES/WARNINGS/ADVISORIES

None.