textproduct: Pocatello

KEY MESSAGES

- Dry conditions and warmer conditions through New Year's Eve

- Rain and snow rings in 2026

SHORT TERM /THROUGH WEDNESDAY NIGHT/

Issued at 102 PM MST Tue Dec 30 2025

Much like yesterday, eastern Idaho is generally void of any appreciable cloud cover. Visible satellite imagery shows a few high cirrus clouds streaking across the region but these are few and far between. High pressure continues to amplify over the area and temperatures are on an upward climb as most lower valley locations are forecast to rise above the freezing mark today, albeit briefly, before we lose the sun this evening. The upper flow overnight and into the day tomorrow will become more zonal and eventually SW by the time we get to Thursday AM. This should allow for continued warming, both during the day and overnight, as well as the introduction of some cloud cover once again. Will likely get some mid/high level clouds as early as later tonight which should help insulate us a bit tonight keeping overnight lows warmer than where they have been for the past few mornings. The last day of 2025 looks dry although we'll see cloud cover increasing throughout the day as moisture looks to move in from the south. Daytime highs on Wednesday will warm into the 40s in many areas. Hi-res CAMs show showers moving into the region right around the time we'd be ready to ring in the New Year setting the stage for a wet Thursday.

LONG TERM /THURSDAY THROUGH TUESDAY/

Issued at 102 PM MST Tue Dec 30 2025

The new year will start out Thursday as the previous one ended which is warm and wet. Southerly flow aloft will bring moisture into southeast Idaho with snow levels starting out near valley floors early in day but rising to over 6 thousand feet by Thursday afternoon and evening. Highs Thursday and Friday in the upper 30s to mid 40s valleys and 30s to lower 40s mountains. Will be drier late in day Friday under ridging then southwesterly flow aloft returns with precipitation moving back in on Saturday with at least a chance in the girds Saturday through next Tuesday. Snow levels over 6 thousand feet Saturday then dropping closer to 5 thousand feet Sunday into early next week. Highs Saturday mid to upper 40s valleys and mid 30s to lower 40s mountains. Highs Sunday through Tuesday in the 30s mountains and upper 30s to lower 40s valleys. Lows Friday and Saturday very warm with 20s mountains and 30s valleys with many locations above freezing. Lows Sunday through Tuesday teens to lower 20s mountains and 20s to lower 30s valleys.

AVIATION /06Z TAFS THROUGH 06Z THURSDAY/

Issued at 900 PM MST Tue Dec 30 2025

Winds look light tonight with high clouds expected to arrive late in the night and towards morning. Winds expected to remain light through Wednesday. Will not see cloud decks lower until Wednesday evening.

PIH WATCHES/WARNINGS/ADVISORIES

None.