815
FXUS65 KBOI 171022
AFDBOI

Area Forecast Discussion
National Weather Service Boise ID
322 AM MST Mon Nov 17 2025

.SHORT TERM...Today through Wednesday night...A band of
precipitation remains over the area this morning and is slowly
weakening. Precipitation will taper off by this afternoon, with
mostly cloudy skies. Upper level ridging reforms over the area
later today as another cutoff low develops off the CA coast.
Temperatures will be around 10 degrees above normal today and
Tuesday, and could overachieve again like the past few days.
Patchy fog expected tonight and on Wednesday morning. Of note,
NAM 3km has extensive fog and low clouds on Wednesday morning.
A weak cold front will move across northern ID on Wednesday
with a slight chance of showers over the west central ID
mountains. Slightly cooler temperatures expected on Wednesday,
but still around 5 degrees above normal.

.LONG TERM...Thursday through Monday...Upper level ridging
returns on Thursday as another system moves south along the West
Coast into another cutoff low off the CA coast. With the
low sun angles and recent moisture, patchy fog and low stratus
is possible in the valleys. A temperature inversion strengthens
on Friday and lasts through at least Monday. Forecast
temperature confidence is low in the extended and depends on the
coverage of low clouds and fog.

&&

.AVIATION...MVFR to IFR in showers, tapering off this afternoon.
Mountains obscured. Clearing late with patchy fog overnight.
Surface winds variable 10kt or less. Winds aloft at 10kft MSL:
S-SW 5-15kt.

KBOI...MVFR this morning in light rain. VFR by midday with
clearing late. Surface winds variable 10kt or less.

&&

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

&&

$$

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