textproduct: Pocatello

KEY MESSAGES

- Breezy and cooler today.

- Frost possible across portions of Snake Plain tonight.

- Next chance of rain late week.

DISCUSSION

Issued at 106 AM MDT Mon Sep 14 2026

Trough low pressure passed through the area overnight. A reinforcing shot of cold air will settle into the region today with widespread temperatures in the 60s likely. Expect light winds tonight tonight with mostly clear conditions. This will allow for temperatures to drop into the mid and upper 30s over many of our valleys. Will issue a frost advisory for late tonight into Tuesday morning for most of the Snake Plain into Shoshone zone. Temps around Burley/Heyburn look like they may stay just warm enough. The cool down should be short-lived. Highs will rebound to around 80s for much of the area by Wednesday. A low pressure system will work into the Pacific Northwest late week resulting in another chance for scattered showers and storms.

AVIATION /18Z TAFS THROUGH 18Z TUESDAY/

Issued at 1008 AM MDT Mon Sep 14 2026

VFR conditions expected through the period with mainly clear skies. Winds will be breezy at times this afternoon in the valley terminals, 15-25 kts, but will become light and variable later this evening, through the overnight and into the morning hours on Tuesday.

FIRE WEATHER

Issued at 106 AM MDT Mon Sep 14 2026

Wind gusts to 20 mph across the central mountains and 30 mph elsewhere are likely today. However, cooler temps will keep humidities above critical thresholds. Temps rise tomorrow, allowing humidities to fall into the teens but winds should be much lighter. Light winds will continue into Wednesday and humidity levels may increase some as well.

PIH WATCHES/WARNINGS/ADVISORIES

Frost Advisory from 3 AM to 9 AM MDT Tuesday for IDZ051>054.