529  
FNUS75 KBOI 311155  
FWSBOI  
 
SPOT FORECAST FOR HOUSTON...USFS  
NATIONAL WEATHER SERVICE BOISE ID  
555 AM MDT FRI JUL 31 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 0600 MDT ON JULY 31.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE AT (208)334-9060, IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
 
...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH  
SATURDAY EVENING FOR DRY/WINDY CONDITIONS...   
..WINDY CONDITIONS CONTINUE THROUGH MONDAY  
 
   
DISCUSSION  
 
HOT, DRY, AND MILDLY BREEZY CONDITIONS CONTINUE TODAY. GUSTY  
WINDS ALONGSIDE A DRY COLD FRONTAL PASSAGE THIS WEEKEND HAVE  
PROMPTED THE ISSUANCE OF A FIRE WEATHER WATCH SATURDAY AFTERNOON  
AND EVENING. NORTHWESTERLY WINDS WILL INCREASE TO 15 TO 20 MPH,  
WITH GUSTS UP TO 30 MPH ALONGSIDE MINIMUM RHS NEAR 15% DURING THE  
WATCH. AFTERNOON BREEZY WINDS CONTINUE SUNDAY AND MONDAY  
AFTERNOONS, WITH MINIMUM RHS HOLDING RELATIVELY STEADY THROUGH THE  
FORECAST AT 15 TO 20% EACH DAY.  
   
TODAY  
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....81 TO 86.  
MIN HUMIDITY........18 TO 23 PERCENT.  
CWR.................0 PERCENT.  
WIND - 20 FOOT......SOUTH AROUND 3 MPH IN THE MORNING SHIFTING TO  
THE NORTHEAST 3 TO 6 MPH WITH GUSTS TO AROUND  
14 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......10000 FT AGL.  
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.  
VENTILATION INDEX...1000 EXCELLENT.  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....59 TO 64.  
MAX HUMIDITY........37 TO 42 PERCENT.  
CWR.................0 PERCENT.  
WIND - 20 FOOT......NORTHEAST 3 TO 7 MPH WITH GUSTS TO AROUND 14  
MPH IN THE EVENING SHIFTING TO THE SOUTH 3 TO 6  
MPH OVERNIGHT.  
MIXING HEIGHT.......400 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.  
VENTILATION INDEX...40 POOR.  
   
SATURDAY  
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....79 TO 84.  
MIN HUMIDITY........15 TO 20 PERCENT.  
CWR.................0 PERCENT.  
WIND - 20 FOOT......SOUTHWEST AROUND 6 MPH WITH GUSTS TO AROUND 14  
MPH IN THE MORNING INCREASING TO 12 TO 17 MPH  
WITH GUSTS TO AROUND 30 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......10000 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 25 MPH.  
VENTILATION INDEX...2500 EXCELLENT.  
 
 
FORECASTER...HOOD  
REQUESTED BY...INCIDENT COMMANDER  
TYPE OF REQUEST...WILDFIRE  
.TAG 2618168.8/BOI  
.DELDT 07/31/26  
.FORMATTERVERSION 2.0.0  
.EMAIL IDPAC@FIRENET.GOV  
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