490  
FPUS86 KMFR 050909  
TVLMFR  
 
FORECAST FOR MOUNTAIN PASSES  
NATIONAL WEATHER SERVICE MEDFORD, OR  
209 AM PDT FRI SEP 5 2025  
 

 
 
CANYON CREEK PASS-  
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 81  
209 AM PDT FRI SEP 5 2025  
   
TODAY
 
PARTLY CLOUDY EARLY IN THE MORNING THEN CLEARING. AREAS  
OF SMOKE THROUGH THE DAY. A 10 PERCENT CHANCE OF SHOWERS IN THE  
AFTERNOON. HIGHS AROUND 88.    
TONIGHT
 
AREAS OF SMOKE IN THE EVENING. PARTLY CLOUDY WITH A  
20 PERCENT CHANCE OF SHOWERS. LOWS AROUND 54.    
SATURDAY
 
PARTLY CLOUDY IN THE MORNING THEN BECOMING MOSTLY  
CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS.  
HIGHS AROUND 83. CHANCE OF PRECIPITATION 30 PERCENT.    
SATURDAY NIGHT
 
AREAS OF SMOKE IN THE EVENING. MOSTLY CLOUDY  
WITH A 30 PERCENT CHANCE OF SHOWERS IN THE EVENING, THEN PARTLY  
CLOUDY AFTER MIDNIGHT. LOWS AROUND 53.    
SUNDAY
 
PARTLY CLOUDY IN THE MORNING, THEN MOSTLY CLOUDY WITH A  
30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON AND EVENING. HIGHS  
AROUND 80.  
 

 
 
SEXTON SUMMIT-  
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 69  
209 AM PDT FRI SEP 5 2025  
   
TODAY
 
SUNNY. AREAS OF SMOKE THROUGH THE DAY. A 10 PERCENT  
CHANCE OF SHOWERS IN THE AFTERNOON. HIGHS 83-85.    
TONIGHT
 
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS.  
AREAS OF SMOKE. LOWS 58-59.    
SATURDAY
 
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF  
THUNDERSTORMS. AREAS OF SMOKE. HIGHS 78-79.    
SATURDAY NIGHT
 
AREAS OF SMOKE IN THE EVENING. PARTLY CLOUDY  
WITH A 20 PERCENT CHANCE OF SHOWERS IN THE EVENING, THEN MOSTLY  
CLEAR AFTER MIDNIGHT. LOWS 56-58.    
SUNDAY
 
PARTLY CLOUDY IN THE MORNING, THEN MOSTLY CLOUDY WITH A  
20 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON AND EVENING. HIGHS  
74-76.  
 

 
 
HAYES HILL SUMMIT-  
LOCATION...OREGON HIGHWAY 199 NEAR MILEPOST 16  
209 AM PDT FRI SEP 5 2025  
   
TODAY
 
SUNNY. AREAS OF SMOKE THROUGH THE DAY. A 10 PERCENT  
CHANCE OF SHOWERS IN THE AFTERNOON. HIGHS AROUND 93.    
TONIGHT
 
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS.  
LOWS AROUND 53.    
SATURDAY
 
AREAS OF SMOKE IN THE MORNING. PARTLY CLOUDY WITH A  
20 PERCENT CHANCE OF SHOWERS. HIGHS AROUND 88.    
SATURDAY NIGHT
 
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF  
SHOWERS IN THE EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT. LOWS  
AROUND 53.    
SUNDAY
 
PARTLY CLOUDY IN THE MORNING, THEN MOSTLY CLOUDY WITH A  
20 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON AND EVENING. HIGHS  
AROUND 84.  
 

 
 
WILLAMETTE PASS-  
LOCATION...OREGON HIGHWAY 58 NEAR MILEPOST 62  
209 AM PDT FRI SEP 5 2025  
   
TODAY
 
PARTLY CLOUDY IN THE MORNING THEN BECOMING MOSTLY  
CLOUDY. A 50 PERCENT CHANCE OF THUNDERSTORMS. AREAS OF SMOKE IN  
THE AFTERNOON. HIGHS 76-79.    
TONIGHT
 
MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS IN THE EVENING,  
THEN CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS 49-53. CHANCE OF  
PRECIPITATION 30 PERCENT.    
SATURDAY
 
PARTLY CLOUDY IN THE MORNING THEN BECOMING MOSTLY  
CLOUDY. A 50 PERCENT CHANCE OF THUNDERSTORMS. AREAS OF SMOKE.  
HIGHS AROUND 70.    
SATURDAY NIGHT
 
AREAS OF SMOKE IN THE EVENING. MOSTLY CLOUDY  
WITH A CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN  
THE EVENING, THEN PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS  
AFTER MIDNIGHT. LOWS AROUND 50. CHANCE OF PRECIPITATION  
40 PERCENT.    
SUNDAY
 
PARTLY CLOUDY IN THE MORNING THEN BECOMING MOSTLY  
CLOUDY. CHANCE OF SHOWERS THROUGH THE DAY. SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. HIGHS 62-66. CHANCE OF  
PRECIPITATION 40 PERCENT.  
 

 
 
DIAMOND LAKE SUMMIT-  
LOCATION...OREGON HIGHWAY 138 NEAR MILEPOST 83  
209 AM PDT FRI SEP 5 2025  
   
TODAY
 
PARTLY CLOUDY IN THE MORNING THEN BECOMING MOSTLY  
CLOUDY. A 50 PERCENT CHANCE OF THUNDERSTORMS. AREAS OF SMOKE IN  
THE AFTERNOON. HIGHS AROUND 80.    
TONIGHT
 
MOSTLY CLOUDY. AREAS OF SMOKE IN THE EVENING. CHANCE  
OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF SHOWERS AFTER  
MIDNIGHT. LOWS 48-49. CHANCE OF PRECIPITATION 30 PERCENT.    
SATURDAY
 
PARTLY CLOUDY IN THE MORNING THEN BECOMING MOSTLY  
CLOUDY. A 40 PERCENT CHANCE OF THUNDERSTORMS. AREAS OF SMOKE.  
HIGHS 70-73.    
SATURDAY NIGHT
 
AREAS OF SMOKE IN THE EVENING. MOSTLY CLOUDY  
WITH A CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN  
THE EVENING, THEN PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS  
AFTER MIDNIGHT. LOWS 46-47. CHANCE OF PRECIPITATION 30 PERCENT.    
SUNDAY
 
PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS, THEN  
MOSTLY CLOUDY IN THE EVENING. HIGHS 64-67.  
 

 
 
CRATER LAKE-  
LOCATION...OREGON HIGHWAY 62 NEAR MILEPOST 65  
209 AM PDT FRI SEP 5 2025  
   
TODAY
 
PARTLY CLOUDY IN THE MORNING THEN BECOMING MOSTLY  
CLOUDY. A 40 PERCENT CHANCE OF THUNDERSTORMS. AREAS OF SMOKE IN  
THE AFTERNOON. HIGHS 73-78.    
TONIGHT
 
MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS IN THE EVENING,  
THEN CHANCE OF SHOWERS AFTER MIDNIGHT. AREAS OF SMOKE THROUGH THE  
NIGHT. LOWS 45-47. CHANCE OF PRECIPITATION 30 PERCENT.    
SATURDAY
 
PARTLY CLOUDY IN THE MORNING THEN BECOMING MOSTLY  
CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS.  
AREAS OF SMOKE. HIGHS 67-72. CHANCE OF PRECIPITATION 50 PERCENT.    
SATURDAY NIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY  
WITH A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS 44-46.  
CHANCE OF PRECIPITATION 30 PERCENT.    
SUNDAY
 
PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS, THEN  
MOSTLY CLOUDY IN THE EVENING. HIGHS 61-66.  
 

 
 
LAKE OF THE WOODS-  
LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 33  
209 AM PDT FRI SEP 5 2025  
   
TODAY
 
PARTLY CLOUDY THEN BECOMING SUNNY LATE IN THE MORNING  
THEN BECOMING PARTLY CLOUDY. AREAS OF SMOKE IN THE MORNING. A  
10 PERCENT CHANCE OF THUNDERSTORMS. HIGHS 80-82.    
TONIGHT
 
PARTLY CLOUDY WITH A SLIGHT CHANCE OF THUNDERSTORMS IN  
THE EVENING, THEN MOSTLY CLEAR WITH A SLIGHT CHANCE OF SHOWERS  
AFTER MIDNIGHT. AREAS OF SMOKE THROUGH THE NIGHT. LOWS AROUND 50.  
CHANCE OF PRECIPITATION 20 PERCENT.    
SATURDAY
 
SUNNY IN THE MORNING THEN BECOMING MOSTLY CLOUDY.  
CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. AREAS OF  
SMOKE. HIGHS 74-78. CHANCE OF PRECIPITATION 30 PERCENT.    
SATURDAY NIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY  
WITH A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS 47-49.  
CHANCE OF PRECIPITATION 30 PERCENT.    
SUNDAY
 
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS, THEN  
MOSTLY CLOUDY IN THE EVENING. HIGHS AROUND 70.  
 

 
 
SISKIYOU SUMMIT-  
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 4  
209 AM PDT FRI SEP 5 2025  
   
TODAY
 
SUNNY. AREAS OF SMOKE IN THE MORNING. A 10 PERCENT  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 80-87.    
TONIGHT
 
MOSTLY CLEAR WITH A SLIGHT CHANCE OF THUNDERSTORMS IN  
THE EVENING, THEN PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS  
AFTER MIDNIGHT. AREAS OF SMOKE THROUGH THE NIGHT. LOWS 55-60.  
CHANCE OF PRECIPITATION 20 PERCENT.    
SATURDAY
 
SUNNY IN THE MORNING THEN BECOMING MOSTLY CLOUDY.  
CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. AREAS OF  
SMOKE. HIGHS 74-81. CHANCE OF PRECIPITATION 30 PERCENT.    
SATURDAY NIGHT
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF  
SHOWERS AFTER MIDNIGHT. LOWS 53-57. CHANCE OF PRECIPITATION  
30 PERCENT.    
SUNDAY
 
SUNNY THEN BECOMING PARTLY CLOUDY IN THE AFTERNOON THEN  
BECOMING MOSTLY CLOUDY. HIGHS 69-76.  
 

 
 
BLACK BUTTE SUMMIT-  
LOCATION...CALIFORNIA INTERSTATE 5 NEAR MILEPOST 742  
209 AM PDT FRI SEP 5 2025  
   
TODAY
 
SUNNY. HIGHS 80-85.    
TONIGHT
 
MOSTLY CLEAR. LOWS 51-55.    
SATURDAY
 
SUNNY. SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.  
HIGHS 76-80.    
SATURDAY NIGHT
 
MOSTLY CLEAR. A 20 PERCENT CHANCE OF SHOWERS IN  
THE EVENING. LOWS 50-52.    
SUNDAY
 
SUNNY THEN BECOMING PARTLY CLOUDY IN THE AFTERNOON THEN  
BECOMING MOSTLY CLOUDY. HIGHS 72-76.  
 

 
 
GRASS LAKE/MT HEBRON SUMMIT-  
LOCATION...CALIFORNIA HIGHWAY 97 NEAR MILEPOST 20  
209 AM PDT FRI SEP 5 2025  
   
TODAY
 
SUNNY. HIGHS 82-83.    
TONIGHT
 
MOSTLY CLEAR. AREAS OF SMOKE. LOWS AROUND 46.    
SATURDAY
 
SUNNY. AREAS OF SMOKE IN THE MORNING. SLIGHT CHANCE  
OF SHOWERS IN THE AFTERNOON. HIGHS 76-78.    
SATURDAY NIGHT
 
MOSTLY CLEAR. A 20 PERCENT CHANCE OF SHOWERS IN  
THE EVENING. LOWS AROUND 44.    
SUNDAY
 
SUNNY THEN BECOMING PARTLY CLOUDY IN THE AFTERNOON THEN  
BECOMING MOSTLY CLOUDY. HIGHS 72-74.  
 

 
 
WARNER MOUNTAIN SUMMIT-  
LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 4  
209 AM PDT FRI SEP 5 2025  
   
TODAY
 
MOSTLY CLOUDY THEN BECOMING SUNNY LATE IN THE MORNING  
THEN BECOMING MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. HIGHS AROUND 80. CHANCE OF PRECIPITATION  
30 PERCENT.    
TONIGHT
 
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN THE  
EVENING, THEN SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS  
51-52. CHANCE OF PRECIPITATION 20 PERCENT.    
SATURDAY
 
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS.  
HIGHS 76-77.    
SATURDAY NIGHT
 
MOSTLY CLEAR. LOWS 47-48.    
SUNDAY
 
SUNNY THEN BECOMING MOSTLY CLOUDY. HIGHS 71-72.  
 

 
 
CEDAR PASS-  
LOCATION...CALIFORNIA HIGHWAY 299 NEAR MILEPOST 51  
209 AM PDT FRI SEP 5 2025  
   
TODAY
 
PARTLY CLOUDY THEN BECOMING SUNNY LATE IN THE MORNING  
THEN BECOMING PARTLY CLOUDY. A 10 PERCENT CHANCE OF  
THUNDERSTORMS. AREAS OF SMOKE IN THE AFTERNOON. HIGHS 73-77.    
TONIGHT
 
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY  
CLEAR. A 10 PERCENT CHANCE OF SHOWERS. LOWS AROUND 52.    
SATURDAY
 
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS IN  
THE MORNING, THEN SUNNY IN THE AFTERNOON. HIGHS 70-75.    
SATURDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 50.    
SUNDAY
 
SUNNY THEN BECOMING MOSTLY CLOUDY. HIGHS 66-69.  
 

 
 
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