textproduct: Pocatello
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
KEY MESSAGES
- Lingering showers for parts of east Idaho today and into Monday.
- Chilly weather continues into Tuesday.
- Warmer and mainly dry for midweek and beyond.
DISCUSSION
Issued at 222 AM MDT Sun May 31 2026
Low pressure system that brought impressive rains to parts of east Idaho will move north into Montana today. Many locations across the upper Snake Plain and into the upper Snake highlands have seen an inch or more of rainfall. Additional rainfall today will be limited north of a line from Arco to Idaho Falls to Palisades and north. These areas could see up to an additional 0.10 inches today. Temperatures will still run a touch on the cool side today with highs ranging from the 60s for the mountains, highlands and upper Snake Plain to lower 70s for the lower Snake Plain and Magic Valley. Tonight should be the coldest night with overnight lows falling into the 30s even into the Snake River Plain. However temps probably staying just warm enough that a widespread frost is unlikely. With that said, there could be some colder pockets that fall to near or slightly below freezing.
Temperatures rebound fully by Tuesday with temps ranging from the 70s to low 80s. Models continue to pick up on a weak trough passing through Wednesday Night into Thursday. However it looks like most of the moisture with this system will stay north of the area with only low chances for precipitation for east Idaho. Otherwise, warm dry weather should prevail for the middle and latter part of the week.
AVIATION /12Z TAFS THROUGH 12Z MONDAY/
Issued at 222 AM MDT Sun May 31 2026
Lower MVFR ceilings remain possible at IDA and DIJ this morning. Expect gradual improvement throughout the day. Wind gusts to 25 kts possible at PIH this afternoon. SUN should switch to upvalley around midday with another switch to southwest mid- afternoon.
FIRE WEATHER
Issued at 222 AM MDT Sun May 31 2026
A low pressure system will slowly pull away from the area. Light rain will continue for parts of central and east Idaho today. Dry and breezy conditions will continue for south Idaho today. Mostly dry weather with gradually warming temperatures is expected areawide for the rest of the week.
PIH WATCHES/WARNINGS/ADVISORIES
None.
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