614
FXUS65 KBOI 252131
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
231 PM MST WED FEB 25 2026
SHORT TERM...TONIGHT THROUGH FRIDAY NIGHT
A WEAK COLD FRONT
IS CURRENTLY PUSHING SOUTH AND EAST THROUGH THE REGION AND
SHOULD EXIT TO THE EAST BY SUNSET. SCATTERED SHOWERS CONTINUE
ACROSS SOUTHWEST IDAHO THIS AFTERNOON, WHILE DRIER AIR IS
ALREADY BEGINNING TO FILTER INTO SOUTHEAST OREGON. SHOWERS
EXPECTED TO DISSIPATE BY SUNSET. A TRANSIENT UPPER LEVEL RIDGE
WILL BUILD FROM THE WEST LATER TONIGHT, LEADING TO CLEARING
SKIES. WITH RECENT PRECIPITATION AND CLEARING CONDITIONS, PATCHY
FOG IS EXPECTED TO DEVELOP IN THE SHELTERED VALLEYS EARLY
THURSDAY MORNING. LOW TEMPERATURES TONIGHT WILL BE NEAR SEASONAL
NORMALS, WITH LOWER VALLEYS IN THE UPPER 20S TO LOWER 30S AND
MOUNTAIN VALLEYS IN THE 10S AND 20S.
DRY AND STABLE CONDITIONS WILL PREVAIL THURSDAY AND FRIDAY AS
THE RIDGE SHIFTS INLAND. NORTHWEST FLOW ALOFT WILL KEEP
TEMPERATURES SLIGHTLY ABOVE NORMAL BY FRIDAY AFTERNOON. BREEZY
CONDITIONS ARE EXPECTED EACH AFTERNOON, PARTICULARLY IN THE
WESTERN MAGIC VALLEY AND ALONG RIDGELINES, WITH GUSTS REACHING
20 TO 30 MPH.
LONG TERM...SATURDAY THROUGH WEDNESDAY
AN UPPER-LEVEL TROUGH
WILL MOVE INTO THE OR/CA BORDER REGION SATURDAY MORNING,
BRINGING SOUTHWEST FLOW ALOFT. SHOWER CHANCES INCREASE FROM SE
OREGON, BEGINNING LATE SATURDAY MORNING INTO AFTERNOON, AND MOVE
INTO SW IDAHO SATURDAY AFTERNOON INTO EVENING. PRECIPITATION
CHANCES WILL PERSIST THROUGH MONDAY AFTERNOON UNTIL THE SYSTEM
MOVES FURTHER SE OF THE REGION, WITH CHANCES AROUND 30-50%
AREAWIDE. SNOW LEVELS RANGE FROM 5000FT NEAR BAKER CITY AND
MCCALL, TO AROUND 7500FT NEAR THE NV BORDER WITH THIS SYSTEM.
BEHIND THIS SYSTEM, UPPER-LEVEL RIDGING WILL BUILD BACK INTO THE
AREA. THIS WILL BRING SPRING-LIKE TEMPERATURES, WITH VALLEYS
REACHING THE LOW TO MID 60S ON TUESDAY OR AROUND 10-15 DEGREES
ABOVE NORMAL. ENSEMBLES HINT AT A COLD FRONT MOVING THROUGH THE
AREA LATE WEDNESDAY, WITH SNOW LEVELS LOWERING TO AROUND
4000-5000FT AND LIGHT SNOW ACCUMULATIONS OVER THE MOUNTAINS.
AVIATION
LINGERING SHOWERS INTO EARLY EVENING. MOUNTAIN
OBSCURATION GRADUALLY CLEARING. PATCHY LIFR FOG OVERNIGHT WEDNESDAY
INTO MORNING THURSDAY. SURFACE WINDS: W-NW 5-15KT, EXCEPT GUSTS 20-
25 KT NEAR KJER AND KTWF THIS AFTERNOON, BECOMING LIGHT AFTER
SUNSET. WINDS ALOFT AT 10 KFT MSL: W 20-30KT.
KBOI...VFR. NEARBY SHOWERS TO REMAIN SOUTH OF THE TERMINAL. SURFACE
WINDS: NW 7-13 KT THIS AFTERNOON, BECOMING LIGHT AND VARIABLE AFTER
SUNSET.
BOI WATCHES/WARNINGS/ADVISORIES
ID...NONE.
OR...NONE.
WWW.WEATHER.GOV/BOISE
INTERACT WITH US VIA SOCIAL MEDIA:
WWW.FACEBOOK.COM/NWSBOISE
WWW.X.COM/NWSBOISE
SHORT TERM...JDS
LONG TERM....CH
AVIATION.....CH
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