680  
FXUS65 KBOI 072032  
AFDBOI  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE BOISE ID  
232 PM MDT MON JUL 7 2025  
   
SHORT TERM...TONIGHT THROUGH WEDNESDAY NIGHT
 
HIGH PRESSURE WILL  
CONTINUE TO BUILD INTO THE REGION TODAY, BRINGING VERY HOT  
TEMPERATURES AND DRY CONDITIONS TODAY AND TOMORROW. TOMORROW'S  
HIGHS AT 102-103F IN THE BOISE METRO AREA WILL BE NEAR RECORD  
FOR THIS TIME OF YEAR (104F), WITH LOCATIONS NEAR EMMETT, ID  
REACHING NEARLY 106F. DESPITE RELATIVELY GOOD OVERNIGHT COOLING,  
HAVE OPTED TO ADD A HEAT ADVISORY FOR TOMORROW AFTERNOON AND  
EVENING FOR THE TREASURE VALLEY ZONES.  
 
A WEAK SHORTWAVE TROUGH STEMMING FROM A CLOSED LOW MOVING INTO  
CALIFORNIA WILL BRING SUFFICIENT INSTABILITY (400-700 J/KG OF  
MUCAPE) TO SOUTHEAST OREGON TOMORROW AFTERNOON AND EVENING.  
THERE'S A RISK OF ISOLATED SHOWERS AND THUNDERSTORMS WITH THIS  
TROUGH PASSAGE TOMORROW AFTERNOON AND AGAIN ON WEDNESDAY  
EVENING. A WEAKER COLD FRONTAL PASSAGE WILL OCCUR ON WEDNESDAY  
EVENING, SO HAVE OPTED TO EXPAND SHOWER AND THUNDERSTORM CHANCES  
ACROSS THE REGION, WITH MOST LOCATIONS SEEING A 15-25% CHANCE  
OF THUNDERSTORMS. WITH BOTH SETS OF SHOWERS AND THUNDERSTORMS  
THESE DAYS, DRY SURFACE AIR WILL LIMIT PRECIPITATION AND CREATE  
OPTIMAL CONDITIONS FOR GUSTY AND ERRATIC OUTFLOW WINDS. SOME HI-  
RES MODELS ARE SHOWING GUSTS UP TO 40-50 MPH WITH STRONGER  
SHOWERS. BECAUSE OF THE THREAT OF LIGHTNING IN DRIER  
THUNDERSTORMS AND THE HIGHER CONFIDENCE IN COVERAGE ON  
WEDNESDAY, WE'VE ADDED A FIRE WEATHER WATCH OVER SOUTHEAST  
OREGON ZONES FOR WEDNESDAY AFTERNOON AND EVENING. WINDS WILL  
CONTINUE TO STAY ELEVATED ON WEDNESDAY EVENING, WITH SLIGHT  
IMPROVEMENT IN HUMIDITY AND MUCH COOLER TEMPERATURES THANKS TO  
THE COLD FRONTAL PASSAGE.  
 
LONG TERM...THURSDAY THROUGH MONDAY...AN UPPER TROUGH MOVING THROUGH  
THE NORTHERN ROCKIES WILL SEND A DRY COLD FRONT ACROSS SE OREGON AND  
SW IDAHO ON THURSDAY. THE POST-FRONTAL WINDS ARE EXPECTED TO BE  
GUSTY IN THE AFTERNOON, ESPECIALLY IN S-CENTRAL IDAHO WITH GUSTS TO  
35 MPH. COOLER TEMPERATURES ARRIVE WITH THE PASSAGE OF THE FRONT  
WITH VALLEY HIGHS IN THE 80S, WHICH IS AROUND 5 DEGREES BELOW  
NORMAL. A DRY NORTHWEST FLOW ALOFT FOLLOWS FOR THE END OF THE WEEK  
AND INTO EARLY NEXT WEEK. TEMPERATURES BEGIN TO CLIMB BACK UP TO  
SLIGHTLY ABOVE NORMAL BY SATURDAY AND REMAIN AT LEAST A FEW DEGREES  
ABOVE NORMAL THROUGH MONDAY.  
 

 
   
AVIATION
 
VFR UNDER CLEAR SKIES. SURFACE WINDS: VARIABLE LESS THAN  
10 KT. WINDS ALOFT AT 10KFT MSL: W 5-15 KT.  
 
KBOI...VFR. SURFACE WINDS: NW 5-10 KT.  
 

 
   
BOI WATCHES/WARNINGS/ADVISORIES
 
 
ID...HEAT ADVISORY FROM NOON TO 9 PM MDT TUESDAY IDZ012-014.  
OR...HEAT ADVISORY FROM NOON MDT /11 AM PDT/ TO 9 PM MDT /8 PM PDT/  
TUESDAY ORZ064.  
FIRE WEATHER WATCH FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY  
EVENING ORZ670-672>674.  
 

 
 

 
 
WWW.WEATHER.GOV/BOISE  
 
INTERACT WITH US VIA SOCIAL MEDIA:  
WWW.FACEBOOK.COM/NWSBOISE  
WWW.X.COM/NWSBOISE  
 
SHORT TERM...SA  
LONG TERM....BW  
AVIATION.....BW  
 
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