textproduct: Pocatello

KEY MESSAGES

- High pressure continues to bring mostly dry weather into next week.

- Pockets of patchy fog are possible again tonight, but confidence is low on where or visibility restrictions.

- Gradual warming trend continues.

SHORT TERM /THROUGH MONDAY NIGHT/

Issued at 143 PM MST Sun Jan 11 2026

Ridge of high pressure remain in place over East Idaho through the short term. Satellite imagery shows a few pockets of low cloud and potential fog across the far northern portions of the Snake Plain and within the Bear Lake region. High clouds streaming out of the northwest are progressing across the region, but there is little moisture to work with, so anything more than a flurry or two at higher elevations is unlikely. Model soundings are fairly dry, though a few locations show some potential for fog overnight tonight into Monday morning. That said, the NBM, HREF, and REFS probabilities are spotty in their support for visibilities below 5 miles. With little confidence in fog formation, opted to leave out of forecast for both tonight and Monday night. Otherwise temperatures for the short term look similar to today: overnight lows in lower elevations ranging 15-25 across the forecast area, and daytime highs 30-40, nearing 45 across southern portions of the Eastern Magic Valley and Raft River regions.

LONG TERM /TUESDAY THROUGH SUNDAY/

Issued at 143 PM MST Sun Jan 11 2026

Conditions will remain dry and winds light the entirety of the week as high pressure remains in control of the upper-level pattern. Daytime temperatures will span the 30s and 40s, reaching near 10 degrees above normal for this time of year. Some locations in the eastern Magic Valley and South Hills regions will warm to around 50F by mid-week. The sole concern will be the potential for overnight and early morning fog and degraded air quality as a result of temperature inversions. An Air Stagnation Advisory may be issued in the near future to alert of impending air quality concerns in the Franklin/Eastern Oneida region and potentially the Lower Snake River Plain area for the remainder of the week. The ridge of high pressure will become less amplified come Friday as the center of high pressure shifts further west off the coast. 10 to 20 percent of total ensemble clusters members are supportive of a pattern change by early next week.

AVIATION /06Z TAFS THROUGH 06Z TUESDAY/

Issued at 1013 PM MST Sun Jan 11 2026

Will have widespread VFR with light winds through Monday evening. Went with scattered low clouds toward 12Z prior to sunrise at DIJ, IDA and PIH but included no ceilings. Will see high cloud ceilings tonight into Monday morning.

PIH WATCHES/WARNINGS/ADVISORIES

None.