894
FXUS65 KPIH 310825
AFDPIH

Area Forecast Discussion
National Weather Service Pocatello ID
225 AM MDT Sun May 31 2026

.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.

&&

$$

DISCUSSION...13
AVIATION...13
FIRE WEATHER...13