837  
FPUS86 KMFR 012223  
TVLMFR  
 
FORECAST FOR MOUNTAIN PASSES  
NATIONAL WEATHER SERVICE MEDFORD, OR  
222 PM PST MON DEC 1 2025  
 

 
 
CANYON CREEK PASS-  
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 81  
222 PM PST MON DEC 1 2025  
   
TONIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS  
AROUND 36.    
TUESDAY
 
MOSTLY CLOUDY. HIGHS AROUND 49.    
TUESDAY NIGHT
 
MOSTLY CLOUDY. AREAS OF FOG. LOWS AROUND 32.    
WEDNESDAY
 
MOSTLY CLOUDY. AREAS OF FOG IN THE MORNING. HIGHS  
AROUND 49.    
WEDNESDAY NIGHT
 
PARTLY CLOUDY IN THE EVENING THEN BECOMING  
MOSTLY CLOUDY. LOWS AROUND 34.    
THURSDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE AFTERNOON  
AND EVENING. HIGHS AROUND 51.  
 

 
 
SEXTON SUMMIT-  
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 69  
222 PM PST MON DEC 1 2025  
   
TONIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. PATCHY FOG  
THROUGH THE NIGHT. LOWS AROUND 36.    
TUESDAY
 
MOSTLY CLOUDY IN THE MORNING THEN BECOMING PARTLY  
CLOUDY. PATCHY DENSE FOG IN THE MORNING. HIGHS AROUND 44.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS AROUND 33.    
WEDNESDAY
 
MOSTLY CLOUDY. HIGHS AROUND 43.    
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS 34-36.    
THURSDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE EVENING.  
HIGHS 45-46.  
 

 
 
HAYES HILL SUMMIT-  
LOCATION...OREGON HIGHWAY 199 NEAR MILEPOST 16  
222 PM PST MON DEC 1 2025  
   
TONIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. PATCHY FOG  
THROUGH THE NIGHT. LOWS AROUND 34.    
TUESDAY
 
PARTLY CLOUDY. PATCHY DENSE FOG IN THE MORNING. HIGHS  
AROUND 51.    
TUESDAY NIGHT
 
PARTLY CLOUDY. PATCHY FOG AFTER MIDNIGHT. LOWS  
AROUND 32.    
WEDNESDAY
 
MOSTLY CLOUDY. PATCHY FOG IN THE MORNING. HIGHS  
AROUND 49.    
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS AROUND 32.    
THURSDAY
 
MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY IN THE  
AFTERNOON THEN BECOMING MOSTLY CLOUDY. HIGHS AROUND 53.  
 

 
 
WILLAMETTE PASS-  
LOCATION...OREGON HIGHWAY 58 NEAR MILEPOST 62  
222 PM PST MON DEC 1 2025  
   
TONIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS  
29-32.    
TUESDAY
 
MOSTLY CLOUDY WITH A 10 PERCENT CHANCE OF RAIN AND  
SNOW SHOWERS IN THE MORNING, THEN PARTLY CLOUDY IN THE AFTERNOON.  
HIGHS 35-37.    
TUESDAY NIGHT
 
PARTLY CLOUDY. PATCHY FOG. LOWS 23-26.    
WEDNESDAY
 
MOSTLY CLOUDY. AREAS OF FOG IN THE MORNING. HIGHS  
AROUND 40.    
WEDNESDAY NIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN BECOMING  
PARTLY CLOUDY. LOWS AROUND 30.    
THURSDAY
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN. HIGHS  
41-43.  
 

 
 
DIAMOND LAKE SUMMIT-  
LOCATION...OREGON HIGHWAY 138 NEAR MILEPOST 83  
222 PM PST MON DEC 1 2025  
   
TONIGHT
 
MOSTLY CLOUDY THEN BECOMING MOSTLY CLEAR AFTER  
MIDNIGHT THEN BECOMING PARTLY CLOUDY. LOWS 26-28.    
TUESDAY
 
MOSTLY CLOUDY IN THE MORNING THEN BECOMING PARTLY  
CLOUDY. HIGHS 36-39.    
TUESDAY NIGHT
 
PARTLY CLOUDY. PATCHY FOG. LOWS AROUND 20.    
WEDNESDAY
 
MOSTLY CLOUDY. PATCHY FOG IN THE MORNING. HIGHS  
39-43.    
WEDNESDAY NIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN BECOMING  
PARTLY CLOUDY. LOWS 25-26.    
THURSDAY
 
MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF RAIN. HIGHS  
42-44.  
 

 
 
CRATER LAKE-  
LOCATION...OREGON HIGHWAY 62 NEAR MILEPOST 65  
222 PM PST MON DEC 1 2025  
   
TONIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS  
26-29.    
TUESDAY
 
PARTLY CLOUDY. HIGHS 35-39.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS AROUND 20.    
WEDNESDAY
 
MOSTLY CLOUDY. HIGHS AROUND 40.    
WEDNESDAY NIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN BECOMING  
PARTLY CLOUDY. LOWS 24-26.    
THURSDAY
 
MOSTLY CLOUDY. CHANCE OF RAIN IN THE AFTERNOON.  
CHANCE OF RAIN AND SNOW IN THE EVENING. HIGHS 40-43. CHANCE OF  
PRECIPITATION 30 PERCENT.  
 

 
 
LAKE OF THE WOODS-  
LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 33  
222 PM PST MON DEC 1 2025  
   
TONIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS  
AROUND 30.    
TUESDAY
 
PARTLY CLOUDY. HIGHS 41-43.    
TUESDAY NIGHT
 
PARTLY CLOUDY. PATCHY FOG. LOWS 22-24.    
WEDNESDAY
 
MOSTLY CLOUDY. PATCHY FOG IN THE MORNING. HIGHS  
40-42.    
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS 26-27.    
THURSDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE AFTERNOON  
AND EVENING. HIGHS 43-45.  
 

 
 
SISKIYOU SUMMIT-  
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 4  
222 PM PST MON DEC 1 2025  
   
TONIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS  
32-36.    
TUESDAY
 
PARTLY CLOUDY. HIGHS 42-48.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS 27-31.    
WEDNESDAY
 
MOSTLY CLOUDY IN THE MORNING THEN BECOMING PARTLY  
CLOUDY. HIGHS 39-45.    
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS 29-34.    
THURSDAY
 
MOSTLY CLOUDY. HIGHS 43-48.  
 

 
 
BLACK BUTTE SUMMIT-  
LOCATION...CALIFORNIA INTERSTATE 5 NEAR MILEPOST 742  
222 PM PST MON DEC 1 2025  
   
TONIGHT
 
MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY AFTER  
MIDNIGHT THEN BECOMING MOSTLY CLEAR. LOWS 32-34.    
TUESDAY
 
PARTLY CLOUDY. HIGHS AROUND 50.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS 26-27.    
WEDNESDAY
 
MOSTLY CLOUDY IN THE MORNING THEN BECOMING PARTLY  
CLOUDY. HIGHS 44-47.    
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS AROUND 30.    
THURSDAY
 
MOSTLY CLOUDY IN THE MORNING THEN BECOMING PARTLY  
CLOUDY. HIGHS AROUND 50.  
 

 
 
GRASS LAKE/MT HEBRON SUMMIT-  
LOCATION...CALIFORNIA HIGHWAY 97 NEAR MILEPOST 20  
222 PM PST MON DEC 1 2025  
   
TONIGHT
 
MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY AFTER  
MIDNIGHT THEN BECOMING MOSTLY CLEAR. LOWS AROUND 29.    
TUESDAY
 
PARTLY CLOUDY. HIGHS AROUND 50.    
TUESDAY NIGHT
 
PARTLY CLOUDY IN THE EVENING THEN BECOMING  
MOSTLY CLEAR. LOWS AROUND 21.    
WEDNESDAY
 
PARTLY CLOUDY. HIGHS 44-46.    
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS 24-25.    
THURSDAY
 
PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY. HIGHS  
AROUND 50.  
 

 
 
WARNER MOUNTAIN SUMMIT-  
LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 4  
222 PM PST MON DEC 1 2025  
   
TONIGHT
 
MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY AFTER  
MIDNIGHT THEN BECOMING MOSTLY CLEAR. LOWS 27-28.    
TUESDAY
 
SUNNY. HIGHS 42-43.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS 21-22.    
WEDNESDAY
 
PARTLY CLOUDY. HIGHS 38-39.    
WEDNESDAY NIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN BECOMING  
PARTLY CLOUDY. LOWS 24-25.    
THURSDAY
 
MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY IN THE  
AFTERNOON THEN BECOMING MOSTLY CLOUDY. HIGHS 42-43.  
 

 
 
CEDAR PASS-  
LOCATION...CALIFORNIA HIGHWAY 299 NEAR MILEPOST 51  
222 PM PST MON DEC 1 2025  
   
TONIGHT
 
MOSTLY CLOUDY UNTIL WELL AFTER MIDNIGHT THEN CLEARING.  
LOWS AROUND 31.    
TUESDAY
 
SUNNY IN THE MORNING THEN BECOMING PARTLY CLOUDY.  
HIGHS AROUND 40.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS AROUND 24.    
WEDNESDAY
 
PARTLY CLOUDY. HIGHS 33-34.    
WEDNESDAY NIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN CLEARING.  
LOWS AROUND 26.    
THURSDAY
 
PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY. HIGHS  
AROUND 40.  
 

 
 
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