Blackfoot, Idaho 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

301
FXUS65 KPIH 011735
AFDPIH

Area Forecast Discussion
National Weather Service Pocatello ID
1135 AM MDT Sun Jun 1 2025

.KEY MESSAGES...

- Isolated light showers and dry thunderstorms for Sunday
  afternoon/Sunday night. Breezy in the Snake River plain.

- Cooling trend to afternoon highs starts Sunday, continues
  through Tuesday.

- Slight chance to chance of light showers Monday in eastern
  mountains, showers and thunderstorms on Tuesday afternoon.

&&

.SHORT TERM /THROUGH MONDAY NIGHT/...
Issued at 149 AM MDT Sun Jun 1 2025

Upper level trof moves east through Idaho today and tonight and
expect showers and thunderstorms mainly along the Montana border
today with a marginal risk of severe again also near the Montana
border in the Upper Snake River Highlands. There is at least a
chance or slight chance everywhere else. Do not expect
significant precipitation but main threat will be gusty winds
near storms and also hail potential. Winds will pick up in the
Snake River Plain with some 15 to 25 mph sustained winds. Will
hold off locally on Lake Wind Advisory as strongest winds should
be further north. Showers will continue overnight in the eastern
mountains for the most part. It will remain very warm today with
highs 70 mountains and 80s valleys. It will begin to cool off
substantially tonight with lows back into the 30s and 40
mountains and 40s to lower 50s valleys. Highs Monday much
cooler in the 60s and 70s. It will be mainly dry with morning
showers in the Upper snake Highlands again but dry elsewhere and
mainly dry Monday afternoon and night. Lows Monday night will
be in the 30s mountains and 40s valleys. 10 to 15 mph winds will
be present Monday and not expected to be as breezy as today.

&&

.LONG TERM /TUESDAY THROUGH SATURDAY/...
Issued at 149 AM MDT Sun Jun 1 2025

Persistent longwave troughing remains forecast throughout next week,
with a few individual disturbances/shortwave troughs cutting through
the region at times. These features continue to look very low-impact
for southeast Idaho with day-to-day PoPs generally confined to the
eastern highlands and Island Park areas. Tuesday and Tuesday night
continue to look like the best shot at better coverage of a few
showers and thunderstorms, although the eastern Magic Valley and
Raft River regions may yet stay completely dry. Daily winds have
trended lighter in the forecast with the breeziest conditions
holding off until Friday and Saturday as the pressure gradient
tightens in response to a more organized low pressure system to our
northeast dropping out of Canada. Temperatures will modestly trend
warmer over the course of the week...starting in the 60s to low 70s
Tuesday and eventually reaching the upper 70s to mid 80s by
Saturday.

&&

.AVIATION /18Z TAFS THROUGH 18Z MONDAY/...
Issued at 1134 AM MDT Sun Jun 1 2025

Our "quiet" weather will be coming to an end this afternoon as a
shortwave trough moves through Eastern Idaho and brings a cold front
along with it. The most favorable conditions for thunderstorm
development still remain north of IDA and DIJ and south of BYI and
PIH, but we will continue to monitor as storms develop this
afternoon as there is a small chance for some pop ups in between
these two main clusters. Main threats with storms today will be
gusty winds and outflows which may have a better chance of reaching
our terminals than actual storms. Watch for outflows around 50 mph,
but some gusts around 60 mph aren`t out of the question. There is
better potential for showers and storms to encroach on our TAF sites
(particularly BYI, PIH, IDA, and DIJ) after 01Z Monday, or 7 pm this
evening, so have kept with VCTS for now. Even outside of storms
it will be breezy this afternoon with gusts at most sites
ranging from 20 to 30 kts.

&&

.FIRE WEATHER...
Issued at 149 AM MDT Sun May 31 2025

An upper level trof approaching will bring a chance for showers
and thunderstorms with the potential for strong storms mainly in
zones 475, 476 and 411 and northern parts of 410. Winds will
increase with 15 to 25 mph winds in parts of zone 410 as well
this afternoon and parts of 425 and 475 and 476. Minimum
humidity will be increased today with slightly cooler
temperatures and most locations above 20 percent. Cooler
temperatures will move in Monday with about a 10 degree drop
from today but humidity will decrease with substantially drier
air moving in. Most convective activity limited to zone 411.
Showers likely a bit more widespread on Tuesday with another
upper trof sliding south.

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
None.

&&

$$

SHORT TERM...GK
LONG TERM...KSmith
AVIATION...AMM
FIRE WEATHER...GK