textproduct: Pocatello

KEY MESSAGES

- Cooler weather today, about 10 degrees or so cooler than Friday.

- Isolated to scattered showers and storms tonight through Monday.

DISCUSSION

Issued at 1254 PM MDT Sat Sep 26 2026

East Idaho remains under the influence of trough draped over the PacNW today, behind surface frontal boundary that moved through overnight. Winds remain breezy today in post frontal atmosphere, and temperatures remain significantly cooler than yesterday. High-res models indicating potential for a sprinkle this afternoon as the trough approaches, with a better signal for a brief light shower this evening and overnight in portions of the eastern highlands. Have nudged QPF and PoP up slightly from NBM consensus forecast overnight. Temps do warm up slightly for Sunday, but precipitation forecast has shifted slightly to have better confidence during the overnight Sunday night and into Monday. From there, ensembles still favor rebuilding a shallow ridge over Idaho into the end of the week. Temperatures remain near normal for most of the week, but warm up late in the weak ahead of potential trough arriving over the weekend. There are cluster differences in timing and depth, so confidence remains low for now on temperature and precipitation trends heading into next weekend.

AVIATION /00Z TAFS THROUGH 00Z MONDAY/

Issued at 443 PM MDT Sat Sep 26 2026

Wind gusts at IDA/DIJ should diminish early this evening resulting in light winds everywhere overnight. Expect mid to high level ceilings through Sunday. Some models are picking up on some virga showers overnight, but others are keeping showers north of the TAF locations. In either case, wouldn't expect any real impacts from them.

FIRE WEATHER

Issued at 1254 PM MDT Sat Sep 26 2026

Expect overall dry conditions today with near normal temperatures. There could be some very light showers overnight for Zone 411. Expect very light rain chances in zones 422, 475, and 476 Sunday into Monday. Expect a better chance of showers and thunderstorm for mainly Zones 411, 413 and, to a lesser degree, zone 410, Sunday evening through Monday as well. Monday will run slightly above normal for temperatures.

Look for overall dry conditions everywhere Tuesday through next Friday. Models are still differing significantly on whether there will be a system move through on Saturday or not. Look for near normal temperatures Monday through mid week before warming back slightly above normal by the end of next week. Some wind gusts 15 to 25 mph today mainly zone 410 and 427 today and Sunday. Expect overall light winds across the area Monday through the remainder of next week.

PIH WATCHES/WARNINGS/ADVISORIES

None.