textproduct: Pocatello

KEY MESSAGES

- Daytime temperatures and heat risk peak today with Heat Advisories and Excessive Heat Warnings in effect for much of Southeast Idaho through Monday. - Red Flag Warnings in effect for central Idaho again today for combination of low humidity and wind.

- A return to daily isolated to scattered convection beginning Tuesday.

DISCUSSION

Issued at 1217 PM MDT Sun Jul 12 2026

Above-normal warmth will persist for the foreseeable future with daytime temperatures and heat risk peaking today across Southeast Idaho. HEAT ADVISORIES and EXTREME HEAT WARNINGS remain in effect through Monday evening. We still stand a chance of breaking all-time records for daytime highs today at Pocatello and Idaho Falls. The all-time record high temperatures for our official climate sites are as follows: 104 in Pocatello, 102 in Idaho Falls, 107 in Burley, 103 in Challis, and 96 in Stanley. Vulnerable populations or anyone exposed to the elements for long periods of time could experience heat-related illness if precautions are not taken. Overnight lows tonight will span the upper-50s to low-60s across the lower elevations.

Beginning tomorrow, a trough descending out of Canada will shift the area of high pressure slightly further east for the remainder of next week. This will mean a return to daily isolated to scattered convection and slightly cooler, fairly stable temperatures under increased cloud cover. Isolated showers and thunderstorms will arrive as early as Monday evening. Storms will trend wetter and more scattered in coverage heading into the middle of next week as PWATs begin to approach 0.75" on Monday and just over an inch by Wednesday.

AVIATION /00Z TAFS THROUGH 00Z TUESDAY/

Issued at 527 PM MDT Sun Jul 12 2026

High pressure remains over the area today, but does begin to loosen its grip a bit over the next 24 hours and shifts eastward. This allows an increase in moisture to ride up and over the ridge which encroaches into eastern Idaho on Monday. VFR conditions will continue through the evening and tonight and even with a slight increase in moisture on Monday, have left out any VCSH mention at SUN and DIJ as it looks like the bulk of anything stays just on the periphery of our TAF sites.

FIRE WEATHER

Issued at 158 PM MDT Sun Jul 12 2026

Extreme heat and low humidity with gusty winds will have the red flag warning in effect until 9 pm for 410, 411 and 476. Winds should not be nearly as strong Monday but heat and very low humidity remain in place. Expect to see some monsoonal moisture move into Idaho Tuesday through Friday with an increased chance for showers and thunderstorms.

PIH WATCHES/WARNINGS/ADVISORIES

Extreme Heat Warning until 9 PM MDT Monday for IDZ051>059-064- 065. Red Flag Warning until 9 PM MDT this evening for IDZ410-411- 476. Heat Advisory until 9 PM MDT Monday for IDZ060>063-066>068-070- 075.