697
FXUS65 KBOI 251050
AFDBOI

Area Forecast Discussion
National Weather Service Boise ID
350 AM MST Sun Jan 25 2026

.SHORT TERM...Today through Tuesday night...A ridge will slowly
build over the area with a slight warming trend Monday and
Tuesday. High clouds will stream into the area at times, but
continued dry. A temperature inversion strengthens on Monday
and Tuesday.

.LONG TERM...Wednesday through Sunday...On Wednesday, a
shortwave trough from the west will weaken as it moves
onshore, briefly flattening the upper ridge overhead. However,
accompanying moisture will not be sufficient enough to increase
precipitation chances above 10% for the higher terrain. This
weak trough will do little to destabilize the dense, valley cold
pools in place, especially as the ridge quickly rebounds late
Wednesday/Thursday and negates any mixing that occurs.
Additional series of troughs are forecast to move into WA/BC
Canada Thursday though the weekend. The main storm track will
keep north of the forecast area, with only a 20% chance of
precipitation clipping northeast Oregon and west-central Idaho
Friday through Sunday. Despite the close proximity of these
troughs, low and mid level flow will continue to have difficulty
eroding the upper ridge and temp inversions. As a result, low
elevation temperatures will stay near/below normal through the
rest of the week, with the potential for gradual warming next
weekend.

&&

.AVIATION...Generally VFR. Mountain valley fog/low stratus will
bring intermittent LIFR conditions for central ID. Low
confidence in MVFR- IFR stratus impacting KJER/KTWF this morning
due to W-SW winds in the Magic Valley. Improving conditions
this afternoon. Surface winds: variable up to 10kt. Winds aloft
at 10kft MSL: N-NW 15-30kt.

KBOI...VFR. Surface winds: light SE, shifting to light NW this
afternoon.

&&

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

&&

$$

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SHORT TERM...KA
LONG TERM....KA
AVIATION.....KA