903  
FPUS86 KMFR 192103  
TVLMFR  
 
FORECAST FOR MOUNTAIN PASSES  
NATIONAL WEATHER SERVICE MEDFORD, OR  
203 PM PDT MON MAY 19 2025  
 

 
 
CANYON CREEK PASS-  
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 81  
202 PM PDT MON MAY 19 2025  
   
TONIGHT
 
PARTLY CLOUDY EARLY IN THE EVENING THEN BECOMING  
MOSTLY CLOUDY. LOWS AROUND 41.    
TUESDAY
 
PARTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS  
AROUND 62.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS AROUND 39.    
WEDNESDAY
 
PARTLY CLOUDY. HIGHS AROUND 70.    
WEDNESDAY NIGHT
 
MOSTLY CLOUDY. LOWS AROUND 44.    
THURSDAY
 
MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY IN THE  
AFTERNOON THEN BECOMING MOSTLY CLEAR. HIGHS AROUND 68.  
 

 
 
SEXTON SUMMIT-  
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 69  
202 PM PDT MON MAY 19 2025  
   
TONIGHT
 
MOSTLY CLEAR EARLY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. LOWS AROUND 40.    
TUESDAY
 
PARTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS  
AROUND 60.    
TUESDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 40.    
WEDNESDAY
 
SUNNY IN THE MORNING THEN BECOMING PARTLY CLOUDY.  
HIGHS AROUND 67.    
WEDNESDAY NIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN BECOMING  
PARTLY CLOUDY. LOWS 43-45.    
THURSDAY
 
PARTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS  
64-65.  
 

 
 
HAYES HILL SUMMIT-  
LOCATION...OREGON HIGHWAY 199 NEAR MILEPOST 16  
202 PM PDT MON MAY 19 2025  
   
TONIGHT
 
MOSTLY CLEAR EARLY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. LOWS AROUND 41.    
TUESDAY
 
PARTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS  
AROUND 67.    
TUESDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 39.    
WEDNESDAY
 
SUNNY IN THE MORNING THEN BECOMING PARTLY CLOUDY.  
HIGHS AROUND 75.    
WEDNESDAY NIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN BECOMING  
PARTLY CLOUDY. LOWS AROUND 44.    
THURSDAY
 
PARTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS  
AROUND 72.  
 

 
 
WILLAMETTE PASS-  
LOCATION...OREGON HIGHWAY 58 NEAR MILEPOST 62  
202 PM PDT MON MAY 19 2025  
   
TONIGHT
 
MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW SHOWERS IN THE  
EVENING, THEN SLIGHT CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. LOWS  
31-34. CHANCE OF PRECIPITATION 40 PERCENT.    
TUESDAY
 
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SNOW SHOWERS  
IN THE MORNING, THEN SUNNY IN THE AFTERNOON. HIGHS AROUND 50.    
TUESDAY NIGHT
 
PARTLY CLOUDY. PATCHY FOG AFTER MIDNIGHT. LOWS  
29-32.    
WEDNESDAY
 
SUNNY IN THE MORNING THEN BECOMING PARTLY CLOUDY.  
HIGHS 60-62.    
WEDNESDAY NIGHT
 
MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF  
SHOWERS. LOWS 35-38.    
THURSDAY
 
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS IN  
THE MORNING, THEN PARTLY CLOUDY IN THE AFTERNOON AND EVENING.  
HIGHS 55-57.  
 

 
 
DIAMOND LAKE SUMMIT-  
LOCATION...OREGON HIGHWAY 138 NEAR MILEPOST 83  
202 PM PDT MON MAY 19 2025  
   
TONIGHT
 
PARTLY CLOUDY EARLY IN THE EVENING THEN BECOMING  
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN AND SNOW SHOWERS IN  
THE EVENING. LOWS AROUND 30.    
TUESDAY
 
PARTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS  
50-52.    
TUESDAY NIGHT
 
PARTLY CLOUDY IN THE EVENING THEN BECOMING  
MOSTLY CLEAR. LOWS AROUND 30.    
WEDNESDAY
 
SUNNY IN THE MORNING THEN BECOMING PARTLY CLOUDY.  
HIGHS 60-62.    
WEDNESDAY NIGHT
 
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF  
SHOWERS. LOWS 34-35.    
THURSDAY
 
MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY IN THE  
AFTERNOON THEN BECOMING MOSTLY CLEAR. HIGHS 55-58.  
 

 
 
CRATER LAKE-  
LOCATION...OREGON HIGHWAY 62 NEAR MILEPOST 65  
202 PM PDT MON MAY 19 2025  
   
TONIGHT
 
MOSTLY CLOUDY. A 10 PERCENT CHANCE OF RAIN SHOWERS IN  
THE EVENING. LOWS AROUND 30.    
TUESDAY
 
SUNNY. HIGHS 48-54.    
TUESDAY NIGHT
 
PARTLY CLOUDY IN THE EVENING THEN BECOMING  
MOSTLY CLEAR. LOWS AROUND 30.    
WEDNESDAY
 
SUNNY IN THE MORNING THEN BECOMING PARTLY CLOUDY.  
HIGHS 58-64.    
WEDNESDAY NIGHT
 
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF  
SHOWERS. LOWS 33-34.    
THURSDAY
 
PARTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS  
54-59.  
 

 
 
LAKE OF THE WOODS-  
LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 33  
202 PM PDT MON MAY 19 2025  
   
TONIGHT
 
PARTLY CLOUDY EARLY IN THE EVENING THEN BECOMING  
MOSTLY CLOUDY. LOWS 32-34.    
TUESDAY
 
SUNNY. HIGHS 53-56.    
TUESDAY NIGHT
 
MOSTLY CLEAR. LOWS 31-33.    
WEDNESDAY
 
SUNNY IN THE MORNING THEN BECOMING PARTLY CLOUDY.  
HIGHS 64-66.    
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS 34-37.    
THURSDAY
 
PARTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS  
AROUND 60.  
 

 
 
SISKIYOU SUMMIT-  
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 4  
202 PM PDT MON MAY 19 2025  
   
TONIGHT
 
MOSTLY CLEAR IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. LOWS 37-39.    
TUESDAY
 
SUNNY. HIGHS 55-61.    
TUESDAY NIGHT
 
MOSTLY CLEAR. LOWS 36-38.    
WEDNESDAY
 
SUNNY IN THE MORNING THEN BECOMING PARTLY CLOUDY.  
HIGHS 66-72.    
WEDNESDAY NIGHT
 
PARTLY CLOUDY IN THE EVENING THEN CLEARING.  
LOWS 40-42.    
THURSDAY
 
SUNNY THEN BECOMING MOSTLY CLEAR. HIGHS 62-67.  
 

 
 
BLACK BUTTE SUMMIT-  
LOCATION...CALIFORNIA INTERSTATE 5 NEAR MILEPOST 742  
202 PM PDT MON MAY 19 2025  
   
TONIGHT
 
MOSTLY CLEAR. LOWS 37-39.    
TUESDAY
 
SUNNY. HIGHS 65-69.    
TUESDAY NIGHT
 
PARTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS  
AROUND 40.    
WEDNESDAY
 
SUNNY. HIGHS 73-77.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. LOWS 41-43.    
THURSDAY
 
SUNNY IN THE MORNING THEN BECOMING MOSTLY CLEAR.  
HIGHS 69-73.  
 

 
 
GRASS LAKE/MT HEBRON SUMMIT-  
LOCATION...CALIFORNIA HIGHWAY 97 NEAR MILEPOST 20  
202 PM PDT MON MAY 19 2025  
   
TONIGHT
 
MOSTLY CLEAR. LOWS AROUND 32.    
TUESDAY
 
SUNNY. HIGHS 63-65.    
TUESDAY NIGHT
 
PARTLY CLOUDY IN THE EVENING THEN BECOMING  
MOSTLY CLEAR. LOWS AROUND 33.    
WEDNESDAY
 
SUNNY. HIGHS 72-73.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. LOWS 36-37.    
THURSDAY
 
SUNNY THEN BECOMING MOSTLY CLEAR. HIGHS 68-69.  
 

 
 
WARNER MOUNTAIN SUMMIT-  
LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 4  
202 PM PDT MON MAY 19 2025  
   
TONIGHT
 
MOSTLY CLEAR. LOWS AROUND 32.    
TUESDAY
 
SUNNY. HIGHS AROUND 60.    
TUESDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 33.    
WEDNESDAY
 
SUNNY. HIGHS 66-67.    
WEDNESDAY NIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN CLEARING.  
LOWS AROUND 39.    
THURSDAY
 
MOSTLY CLEAR. HIGHS 62-63.  
 

 
 
CEDAR PASS-  
LOCATION...CALIFORNIA HIGHWAY 299 NEAR MILEPOST 51  
202 PM PDT MON MAY 19 2025  
   
TONIGHT
 
MOSTLY CLEAR. LOWS 32-33.    
TUESDAY
 
SUNNY. HIGHS 54-57.    
TUESDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 35.    
WEDNESDAY
 
SUNNY. HIGHS 62-65.    
WEDNESDAY NIGHT
 
PARTLY CLOUDY IN THE EVENING THEN CLEARING.  
LOWS AROUND 40.    
THURSDAY
 
SUNNY THEN BECOMING MOSTLY CLEAR. HIGHS AROUND 60.  
 

 
 
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