textproduct: Pocatello

KEY MESSAGES

- Light showers with isolated thunderstorms today

- Mostly dry conditions expected through next week, with a few showers and storms possible around midweek

- Cool temperatures to start the week with warming temperatures through the week with temperatures in the mid to upper 70s/low 80s by the end of the week

DISCUSSION

Issued at 104 AM MDT Sat Sep 19 2026

|Low pressure will settle over eastern Idaho today. Will probably see a mix of sun and clouds today with occasional light rain showers and isolated thunderstorms. The heavy rains that we have around the past couple days should be over. Additional rainfall amounts range from a couple hundredths to 0.10 inches. Temps will be cooler with highs ranging from the upper 50s to mid 60s. Skies will clear this evening which will allow temperatures to fall a bit more than we had seen in previous model runs. Right now, temps look like they will hold in the upper 30s for the Snake Plain and Magic Valley, but the trend is about 5 degrees cooler than what we saw on Thursday night's model runs. Same holds true for Sunday night. Sunday looks dry but any clouds we have will quickly clear in the evening and the models have lowered the temps about 5 degrees. So potentially if these trends continue we could need frost advisories. Right now, it looks like mainly a patchy frost problem.

As we move into midweek, a low pressure system will move into the central Great Basin. This low is expected to weaken and lift northward into our area. So we could see some isolated showers now from this system that we weren't seeing in previous model solutions. But as a whole, next week looks dry with temps returning to slightly above normal by end week.

AVIATION /06Z TAFS THROUGH 06Z SUNDAY/

Issued at 104 AM MDT Sat Sep 19 2026

Showers working around a low pressure system will pass through the area today. Keeping a PROB30 for thunder around DIJ which has the best chance of seeing storms today. As a whole, most of the sites should see just showers today. Expect conditions to remain vfr and winds relatively light.

FIRE WEATHER

Issued at 104 AM MDT Sat Sep 19 2026

Showers and isolated thunderstorms are likely today as a low pressure system arrives. Additional rainfall amounts today look mainly light with amounts around 0.10 inches or less. Drier weather returns for Sunday and will continue through early next week. Winds should remain mainly light into early next week.

PIH WATCHES/WARNINGS/ADVISORIES

None.