Middleton, Idaho 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

895
FXUS65 KBOI 021556
AFDBOI

Area Forecast Discussion
National Weather Service Boise ID
956 AM MDT Wed Apr 2 2025

.DISCUSSION...Seeing isolated shower activity across SE Oregon
this morning, otherwise little else is showing up on radar or
webcams from across the region. Showers will expand in coverage
this afternoon as daytime heating destabilizes the atmosphere.
Similar to yesterday it will be pulse type convection with
development focusing across higher terrain. Breezy W-NW winds,
driven by combination of flow aloft and surface pressure
gradient, will be strongest along the I-84 corridor from Baker
City to Twin/Jerome. Gusts 20 to 30 mph are possible through
this sunset. The forecast has been updated for shower potential
in SE Oregon this morning.

&&

.AVIATION...Mainly VFR. Scattered showers after 02/17Z will
create periods of MVFR/IFR, mainly over the West Central ID
Mtns and near KBKE-KBNO and the NV border. Showers will be
capable of graupel, isolated lightning, and outflow winds up to
30 kt. Snow levels 3500- 4500 feet MSL. Patchy morning valley
fog tomorrow will create periods of LIFR/IFR, mainly around
KMYL. Mountains obscured at times. Surface winds: W-NW 5-15 kt
with gusts around 25 kt. Winds aloft at 10kft: N-NW 10-20 kt.

KBOI...Generally VFR. Scattered showers developing this
afternoon over Boise foothills. A 10% chance of MVFR
rain/graupel showers hitting KBOI terminal. Mountains obscured
in precipitation. Surface winds: NW 8-14 kt with gusts around 20
kt by this afternoon.

&&

.PREV DISCUSSION...
SHORT TERM...Today through Friday night...Gradual warming and drying
through Friday as the main upper trough over the interior northwest
US slowly weakens. Scattered snow showers over the mountains today,
and again Thursday in the central Idaho mountains but fewer than
today. Still enough instability for isolated thunderstorms over
the mountains late today and again late Thursday. High temps will
increase about two degrees per day while lows hold generally steady.
Winds will be northwest through Friday 5 to 15 mph in the nights
and mornings, 10 to 20 mph in the afternoons, except 20 mph with
afternoon gusts to 35 mph in the Snake Basin east of Boise.

LONG TERM...Saturday through Wednesday...An upper level ridge
is expected to build across the northwest region through Saturday,
continuing a warm and dry trend over the weekend with daytime
temperatures in the 60s and 70s across the valleys, and snow
levels in the 5000-6000 ft range over the entire area. A
shortwave trough is expected to move into the region on Monday,
slightly cooling temperatures and bringing showers and chance
of thunderstorms Monday afternoon/evening. Snow levels will be
expected to rise to 6000-7000 ft range, and snowfall is
generally not expected over the area early next week. Following
this brief trough passage, a longwave ridge is expected to move
into the area through Tuesday and Wednesday, returning above
normal temperatures and drier conditions until the end of the
extended forecast period.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...None.
OR...None.

&&

$$

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DISCUSSION...DG
AVIATION.....SA
SHORT TERM...LC
LONG TERM....JY