textproduct: Pocatello

KEY MESSAGES

- Isolated Mountain Showers: High-resolution REFS guidance indicates isolated shower chances across the Central and eastern mountains this evening, but the vast majority of eastern Idaho will remain dry.

- Building Weekend Ridge: Models remain steadfast on establishing an upper-level ridge across the Intermountain West Friday through early next week, guaranteeing prolonged dry and tranquil conditions.

- Warmer Temperatures By Weekend: Temperatures will run near normal through Friday before climbing 7 to 10 degrees above seasonal averages Sunday into early next week, pushing lower- elevation highs toward 60F.

DISCUSSION

Issued at 1225 AM MST Thu Nov 5 2026

A weak shortwave will swing through the state today through early Friday, bringing low-end chances for precipitation across the higher terrain this evening through Friday morning. Have added PoPs up to 25 percent above 7,500 feet in the central mountains as well as along the MT Divide during the evening based on REFS guidance.

Daytime temperatures will remain very stable and run within a few degrees of normal through Friday with widespread highs ranging the 40s. A ridge of high pressure will begin to amplify over the region Friday behind the departing shortwave, which will keep conditions dry and mild through late next week. Southerly flow will help warm temperatures by more than 5 degrees on Sunday and temperatures will continue to run 5 to 10 degrees above climatological norms through much of next week, ranging the 50s for much of Southeast Idaho.

AVIATION /18Z TAFS THROUGH 18Z FRIDAY/

Issued at 1050 AM MST Thu Nov 5 2026

A weak mid/upper-level shortwave trough will continue to spread mid and high clouds across the area this afternoon. Any resultant CIGs will remain VFR. Can't rule out a few sprinkles/light showers near KSUN this afternoon and early evening, and have maintained a VCSH mention, but not anticipating any impacts from these. Skies will clear from west to east this evening in wake of the departing shortwave trough. VFR conditions to persist into tomorrow as high pressure builds in from the west, with SKC perhaps giving way to a few high clouds. Low probabilities exist for patchy fog particularly at KIDA and KDIJ overnight/Friday morning, but probabilities of MVFR conditions are currently near or below 20 percent so will omit any mention from the TAFs. Winds will remain light through the period, with typical diurnal up/down-valley flow at KSUN.

PIH WATCHES/WARNINGS/ADVISORIES

None.