780  
FPUS86 KMFR 201041  
TVLMFR  
 
FORECAST FOR MOUNTAIN PASSES  
NATIONAL WEATHER SERVICE MEDFORD, OR  
341 AM PDT TUE MAY 20 2025  
 
 
 
CANYON CREEK PASS-  
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 81  
340 AM PDT TUE MAY 20 2025  
   
TODAY  
MOSTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS AROUND  
63.    
TONIGHT  
MOSTLY CLEAR IN THE EVENING THEN BECOMING MOSTLY  
CLOUDY. LOWS AROUND 41.    
WEDNESDAY  
SUNNY IN THE MORNING THEN BECOMING PARTLY CLOUDY.  
HIGHS AROUND 70.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS AROUND 44.    
THURSDAY  
PARTLY CLOUDY THEN BECOMING SUNNY IN THE AFTERNOON  
THEN BECOMING PARTLY CLOUDY. HIGHS AROUND 67.  
 
 
 
SEXTON SUMMIT-  
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 69  
340 AM PDT TUE MAY 20 2025  
   
TODAY  
PARTLY CLOUDY EARLY IN THE MORNING THEN CLEARING. HIGHS  
AROUND 60.    
TONIGHT  
MOSTLY CLEAR. LOWS 41-43.    
WEDNESDAY  
SUNNY. HIGHS 67-68.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS 43-45.    
THURSDAY  
PARTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS  
AROUND 64.  
 
 
 
HAYES HILL SUMMIT-  
LOCATION...OREGON HIGHWAY 199 NEAR MILEPOST 16  
340 AM PDT TUE MAY 20 2025  
   
TODAY  
PARTLY CLOUDY EARLY IN THE MORNING THEN BECOMING SUNNY.  
HIGHS AROUND 68.    
TONIGHT  
MOSTLY CLEAR. LOWS AROUND 43.    
WEDNESDAY  
SUNNY. HIGHS AROUND 75.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS AROUND 45.    
THURSDAY  
PARTLY CLOUDY THEN BECOMING SUNNY IN THE AFTERNOON  
THEN BECOMING PARTLY CLOUDY. HIGHS AROUND 70.  
 
 
 
WILLAMETTE PASS-  
LOCATION...OREGON HIGHWAY 58 NEAR MILEPOST 62  
340 AM PDT TUE MAY 20 2025  
   
TODAY  
MOSTLY CLOUDY THEN BECOMING SUNNY EARLY IN THE AFTERNOON  
THEN BECOMING PARTLY CLOUDY. HIGHS AROUND 50.    
TONIGHT  
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY  
CLEAR. LOWS 31-34.    
WEDNESDAY  
SUNNY. HIGHS 60-62.    
WEDNESDAY NIGHT  
MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF  
SHOWERS. LOWS 35-38.    
THURSDAY  
MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY IN THE  
AFTERNOON THEN BECOMING MOSTLY CLEAR. A 30 PERCENT CHANCE OF  
SHOWERS IN THE MORNING. HIGHS 53-55.  
 
 
 
DIAMOND LAKE SUMMIT-  
LOCATION...OREGON HIGHWAY 138 NEAR MILEPOST 83  
340 AM PDT TUE MAY 20 2025  
   
TODAY  
MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY LATE IN THE  
MORNING THEN BECOMING SUNNY. HIGHS 50-53.    
TONIGHT  
MOSTLY CLEAR. LOWS 30-32.    
WEDNESDAY  
SUNNY. HIGHS 61-63.    
WEDNESDAY NIGHT  
MOSTLY CLOUDY IN THE EVENING THEN BECOMING  
PARTLY CLOUDY. A 20 PERCENT CHANCE OF SHOWERS. LOWS 34-36.    
THURSDAY  
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN AND  
SNOW SHOWERS IN THE MORNING, THEN MOSTLY CLEAR IN THE AFTERNOON  
AND EVENING. HIGHS 54-57.  
 
 
 
CRATER LAKE-  
LOCATION...OREGON HIGHWAY 62 NEAR MILEPOST 65  
340 AM PDT TUE MAY 20 2025  
   
TODAY  
MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY LATE IN THE  
MORNING THEN BECOMING SUNNY. HIGHS 48-54.    
TONIGHT  
MOSTLY CLEAR. LOWS 30-32.    
WEDNESDAY  
SUNNY. HIGHS 59-64.    
WEDNESDAY NIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS  
IN THE EVENING, THEN PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN  
AND SNOW SHOWERS AFTER MIDNIGHT. LOWS 34-35. CHANCE OF  
PRECIPITATION 20 PERCENT.    
THURSDAY  
PARTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS  
53-58.  
 
 
 
LAKE OF THE WOODS-  
LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 33  
340 AM PDT TUE MAY 20 2025  
   
TODAY  
MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY LATE IN THE  
MORNING THEN BECOMING SUNNY. HIGHS 54-57.    
TONIGHT  
MOSTLY CLEAR. LOWS 33-35.    
WEDNESDAY  
SUNNY. HIGHS 64-66.    
WEDNESDAY NIGHT  
MOSTLY CLOUDY IN THE EVENING THEN CLEARING.  
LOWS 35-37.    
THURSDAY  
PARTLY CLOUDY IN THE MORNING THEN BECOMING MOSTLY  
CLEAR. HIGHS AROUND 60.  
 
 
 
SISKIYOU SUMMIT-  
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 4  
340 AM PDT TUE MAY 20 2025  
   
TODAY  
PARTLY CLOUDY EARLY IN THE MORNING THEN CLEARING. HIGHS  
55-61.    
TONIGHT  
MOSTLY CLEAR. LOWS AROUND 40.    
WEDNESDAY  
SUNNY. HIGHS 66-72.    
WEDNESDAY NIGHT  
PARTLY CLOUDY IN THE EVENING THEN CLEARING.  
LOWS 41-43.    
THURSDAY  
SUNNY THEN BECOMING MOSTLY CLEAR. HIGHS 60-65.  
 
 
 
BLACK BUTTE SUMMIT-  
LOCATION...CALIFORNIA INTERSTATE 5 NEAR MILEPOST 742  
340 AM PDT TUE MAY 20 2025  
   
TODAY  
SUNNY. HIGHS 66-69.    
TONIGHT  
MOSTLY CLEAR. LOWS 41-44.    
WEDNESDAY  
SUNNY. HIGHS 73-76.    
WEDNESDAY NIGHT  
PARTLY CLOUDY IN THE EVENING THEN BECOMING  
CLEAR. LOWS 41-43.    
THURSDAY  
SUNNY THEN BECOMING MOSTLY CLEAR. HIGHS 67-71.  
 
 
 
GRASS LAKE/MT HEBRON SUMMIT-  
LOCATION...CALIFORNIA HIGHWAY 97 NEAR MILEPOST 20  
340 AM PDT TUE MAY 20 2025  
   
TODAY  
SUNNY. HIGHS 63-65.    
TONIGHT  
MOSTLY CLEAR. LOWS 35-36.    
WEDNESDAY  
SUNNY. HIGHS 71-73.    
WEDNESDAY NIGHT  
PARTLY CLOUDY IN THE EVENING THEN BECOMING  
MOSTLY CLEAR. LOWS 36-37.    
THURSDAY  
SUNNY THEN BECOMING MOSTLY CLEAR. HIGHS 66-68.  
 
 
 
WARNER MOUNTAIN SUMMIT-  
LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 4  
340 AM PDT TUE MAY 20 2025  
   
TODAY  
PARTLY CLOUDY EARLY IN THE MORNING THEN CLEARING. HIGHS  
AROUND 60.    
TONIGHT  
CLEAR. LOWS AROUND 35.    
WEDNESDAY  
SUNNY. HIGHS 66-67.    
WEDNESDAY NIGHT  
MOSTLY CLOUDY IN THE EVENING THEN BECOMING  
PARTLY CLOUDY. LOWS AROUND 40.    
THURSDAY  
MOSTLY CLEAR. HIGHS 62-63.  
 
 
 
CEDAR PASS-  
LOCATION...CALIFORNIA HIGHWAY 299 NEAR MILEPOST 51  
340 AM PDT TUE MAY 20 2025  
   
TODAY  
SUNNY. HIGHS 54-57.    
TONIGHT  
MOSTLY CLEAR. LOWS AROUND 37.    
WEDNESDAY  
SUNNY. HIGHS 63-65.    
WEDNESDAY NIGHT  
PARTLY CLOUDY IN THE EVENING THEN CLEARING.  
LOWS AROUND 41.    
THURSDAY  
SUNNY THEN BECOMING MOSTLY CLEAR. HIGHS AROUND 60.  
 
 
 
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