Weiser, Idaho 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

288
FXUS65 KBOI 241609
AFDBOI

Area Forecast Discussion
National Weather Service Boise ID
909 AM MST Sat Jan 24 2026

.DISCUSSION...
A dry and cold air mass is locked in place, with many single
digits and teens temperature readings this morning. Areas of
low stratus have developed across the Upper Treasure and western
Magic Valleys, but drier air advecting in from the northwest
will erode the clouds through the early afternoon as winds
increase to 10-15 mph. After a cold day today, a warming trend
looks set to take place, along with weakening inversion and air
stagnation conditions.

&&

.AVIATION...MVFR stratus in the valleys, generally below 5000 feet
MSL near KBKE KTWF KJER KGNG, otherwise VFR. Clear skies to become
widespread by afternoon. Surface winds: light and variable, becoming
NW 5-10kt during the afternoon, except near KTWF and KJER with W-NW
9-14kt. Winds aloft at 10kft MSL: NW-NE 20-30kt.

KBOI...VFR. Light winds becoming NW 7-12kt during afternoon.

Sunday Outlook...VFR. Patchy fog in the mountain valleys Sunday
morning. Light winds.

&&

.PREV DISCUSSION...
SHORT TERM...Today through Monday night...A cold front has
moved through the area and eroded the stratus in most places
from Burns to Ontario to Boise, with lingering stratus over
Baker County and upper Treasure Valley east of Boise to the
Magic Valley. Low clouds and fog will linger over the Magic
Valley today with a weak convergence zone keeping clouds over
that part of the Snake Basin. Dry air will continue to move into
the area and should erred most of the stratus by this afternoon
mostly clear skies late. High clouds will stream into eastern
OR on Sunday and Monday, but continued dry. A slight warming
trend expected on Sunday and Monday but temperatures will be
around 5 degrees below normal in the short term.

LONG TERM...Tuesday through Saturday...A ridge will build over
the area on Tuesday and Wednesday with a temperature inversion
strengthening. A couple of systems approach the Pacific NW but
weaken as they move inland with high clouds expected. Shower
chances remain at 10 percent or lower in the extended period.
Temperatures will slowly warm to near normal in the valleys with
above normal temperatures in the mountains.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...Air Stagnation Advisory until noon MST today
     IDZ011>014-016-028-033.
OR...Air Stagnation Advisory until noon MST /11 AM PST/ today
     ORZ061>064.

&&

$$

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DISCUSSION...JR
AVIATION.....CH
SHORT TERM...KA
LONG TERM....KA