049  
FPUS86 KMFR 212043  
TVLMFR  
 
FORECAST FOR MOUNTAIN PASSES  
NATIONAL WEATHER SERVICE MEDFORD, OR  
1243 PM PST SUN DEC 21 2025  
 
 
 
CANYON CREEK PASS-  
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 81  
1243 PM PST SUN DEC 21 2025  
   
TONIGHT  
MOSTLY CLOUDY. RAIN IN THE EVENING, THEN RAIN LIKELY  
AFTER MIDNIGHT. LOWS AROUND 37. CHANCE OF RAIN 80 PERCENT.    
MONDAY  
MOSTLY CLOUDY. RAIN LIKELY IN THE MORNING, THEN CHANCE  
OF RAIN IN THE AFTERNOON. HIGHS AROUND 45. CHANCE OF RAIN  
60 PERCENT.    
MONDAY NIGHT  
MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF RAIN.  
LOWS AROUND 35.    
TUESDAY  
CLOUDY. RAIN LIKELY IN THE MORNING, THEN RAIN IN THE  
AFTERNOON. HIGHS AROUND 43. CHANCE OF RAIN 30 PERCENT.    
TUESDAY NIGHT  
CLOUDY. RAIN IN THE EVENING, THEN RAIN AND SNOW  
AFTER MIDNIGHT. LOWS AROUND 35. CHANCE OF PRECIPITATION  
80 PERCENT.    
WEDNESDAY  
MOSTLY CLOUDY. RAIN AND SNOW LIKELY IN THE MORNING,  
THEN CHANCE OF RAIN IN THE AFTERNOON AND EVENING. HIGHS AROUND  
46. CHANCE OF PRECIPITATION 70 PERCENT.  
 
 
 
SEXTON SUMMIT-  
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 69  
1243 PM PST SUN DEC 21 2025  
   
TONIGHT  
MOSTLY CLOUDY. RAIN IN THE EVENING, THEN CHANCE OF  
RAIN AFTER MIDNIGHT. LOWS AROUND 36. CHANCE OF RAIN 80 PERCENT.    
MONDAY  
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN. HIGHS  
AROUND 40.    
MONDAY NIGHT  
MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF RAIN.  
LOWS 34-35.    
TUESDAY  
CLOUDY. RAIN LIKELY IN THE MORNING, THEN RAIN IN THE  
AFTERNOON. HIGHS AROUND 38. CHANCE OF RAIN 30 PERCENT.    
TUESDAY NIGHT  
RAIN IN THE EVENING, THEN RAIN AND SNOW AFTER  
MIDNIGHT. LOWS AROUND 35. CHANCE OF PRECIPITATION 80 PERCENT.    
WEDNESDAY  
MOSTLY CLOUDY. RAIN LIKELY IN THE MORNING, THEN  
CHANCE OF RAIN IN THE AFTERNOON. RAIN LIKELY IN THE EVENING.  
HIGHS AROUND 40. CHANCE OF RAIN 70 PERCENT.  
 
 
 
HAYES HILL SUMMIT-  
LOCATION...OREGON HIGHWAY 199 NEAR MILEPOST 16  
1243 PM PST SUN DEC 21 2025  
   
TONIGHT  
MOSTLY CLOUDY. RAIN SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN AFTER MIDNIGHT.  
LOWS AROUND 37. CHANCE OF PRECIPITATION 80 PERCENT.    
MONDAY  
MOSTLY CLOUDY WITH RAIN LIKELY. HIGHS AROUND 45. CHANCE  
OF RAIN 60 PERCENT.    
MONDAY NIGHT  
MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF RAIN.  
PATCHY FOG AFTER MIDNIGHT. LOWS AROUND 34.    
TUESDAY  
CLOUDY. PATCHY FOG IN THE MORNING. RAIN LIKELY IN THE  
MORNING, THEN RAIN IN THE AFTERNOON. HIGHS AROUND 41. CHANCE OF  
RAIN 40 PERCENT.    
TUESDAY NIGHT  
CLOUDY WITH RAIN. LOWS AROUND 34. CHANCE OF RAIN  
90 PERCENT.    
WEDNESDAY  
MOSTLY CLOUDY. RAIN LIKELY IN THE MORNING, THEN  
CHANCE OF RAIN IN THE AFTERNOON. RAIN LIKELY IN THE EVENING.  
HIGHS AROUND 43. CHANCE OF RAIN 70 PERCENT.  
 
 
 
WILLAMETTE PASS-  
LOCATION...OREGON HIGHWAY 58 NEAR MILEPOST 62  
1243 PM PST SUN DEC 21 2025  
   
TONIGHT  
RAIN AND SNOW IN THE EVENING, THEN SNOW LIKELY AFTER  
MIDNIGHT. SNOW ACCUMULATION OF 2 TO 3 INCHES. LOWS 25-28. CHANCE  
OF PRECIPITATION 80 PERCENT.    
MONDAY  
MOSTLY CLOUDY. SNOW LIKELY IN THE MORNING, THEN CHANCE  
OF SNOW IN THE AFTERNOON. SNOW ACCUMULATION UP TO 1 INCH. HIGHS  
34-35. CHANCE OF SNOW 60 PERCENT.    
MONDAY NIGHT  
MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF SNOW.  
LOWS 24-26.    
TUESDAY  
MOSTLY CLOUDY. SNOW LIKELY IN THE MORNING, THEN RAIN  
AND SNOW IN THE AFTERNOON. HIGHS AROUND 35. CHANCE OF  
PRECIPITATION 40 PERCENT.    
TUESDAY NIGHT  
RAIN AND SNOW. LOWS AROUND 30. CHANCE OF  
PRECIPITATION 90 PERCENT.    
WEDNESDAY  
MOSTLY CLOUDY. SNOW IN THE MORNING, THEN CHANCE OF  
SNOW IN THE AFTERNOON AND EVENING. HIGHS 36-37. CHANCE OF SNOW  
80 PERCENT.  
 
 
 
DIAMOND LAKE SUMMIT-  
LOCATION...OREGON HIGHWAY 138 NEAR MILEPOST 83  
1243 PM PST SUN DEC 21 2025  
   
..WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 AM PST MONDAY  
 
   
TONIGHT  
RAIN AND SNOW IN THE EVENING, THEN SNOW AFTER  
MIDNIGHT. SNOW ACCUMULATION OF 3 TO 5 INCHES. LOWS 23-25.  
SOUTHWEST WINDS AROUND 20 MPH IN THE LATE EVENING AND EARLY  
MORNING BECOMING LIGHT. CHANCE OF PRECIPITATION 90 PERCENT.    
MONDAY  
MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF SNOW. HIGHS  
32-35.    
MONDAY NIGHT  
MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF SNOW.  
LOWS 20-22.    
TUESDAY  
CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN SNOW IN  
THE AFTERNOON. HIGHS 33-35. CHANCE OF SNOW 80 PERCENT.    
TUESDAY NIGHT  
RAIN AND SNOW IN THE EVENING, THEN SNOW AFTER  
MIDNIGHT. LOWS 25-26. CHANCE OF PRECIPITATION 90 PERCENT.    
WEDNESDAY  
SNOW IN THE MORNING, THEN SNOW LIKELY IN THE  
AFTERNOON AND EVENING. HIGHS 33-36. CHANCE OF SNOW 80 PERCENT.  
 
 
 
CRATER LAKE-  
LOCATION...OREGON HIGHWAY 62 NEAR MILEPOST 65  
1243 PM PST SUN DEC 21 2025  
   
..WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 AM PST MONDAY  
 
   
TONIGHT  
RAIN AND SNOW IN THE EVENING, THEN SNOW AFTER  
MIDNIGHT. SNOW ACCUMULATION OF 5 TO 6 INCHES. LOWS 22-25.  
SOUTHWEST WINDS 20 TO 25 MPH. CHANCE OF PRECIPITATION 90 PERCENT.   
MONDAY  
MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF SNOW. HIGHS  
31-35.    
MONDAY NIGHT  
MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF SNOW.  
LOWS 19-22.    
TUESDAY  
CLOUDY WITH SNOW. HIGHS 32-35. CHANCE OF SNOW  
80 PERCENT.    
TUESDAY NIGHT  
SNOW. LOWS 24-27. SOUTHEAST WINDS AROUND 20 MPH  
AFTER MIDNIGHT. CHANCE OF SNOW 90 PERCENT.    
WEDNESDAY  
SNOW IN THE MORNING, THEN SNOW LIKELY IN THE  
AFTERNOON AND EVENING. HIGHS 33-36. SOUTH WINDS AROUND 20 MPH IN  
THE MORNING BECOMING LIGHT. CHANCE OF SNOW 80 PERCENT.  
 
 
 
LAKE OF THE WOODS-  
LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 33  
1243 PM PST SUN DEC 21 2025  
   
TONIGHT  
RAIN AND SNOW IN THE EVENING, THEN SNOW LIKELY AFTER  
MIDNIGHT. SNOW ACCUMULATION OF 1 TO 2 INCHES. LOWS 26-28. CHANCE  
OF PRECIPITATION 80 PERCENT.    
MONDAY  
MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF SNOW. HIGHS  
37-39.    
MONDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF SNOW IN THE EVENING,  
THEN SNOW LIKELY AFTER MIDNIGHT. LOWS 24-27. CHANCE OF SNOW  
40 PERCENT.    
TUESDAY  
SNOW LIKELY IN THE MORNING, THEN RAIN AND SNOW IN THE  
AFTERNOON. HIGHS 35-37. CHANCE OF PRECIPITATION 90 PERCENT.    
TUESDAY NIGHT  
RAIN AND SNOW. LOWS AROUND 30. CHANCE OF  
PRECIPITATION 90 PERCENT.    
WEDNESDAY  
SNOW LIKELY. HIGHS 38-39. CHANCE OF SNOW 70 PERCENT.  
 
 
 
SISKIYOU SUMMIT-  
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 4  
1243 PM PST SUN DEC 21 2025  
   
TONIGHT  
MOSTLY CLOUDY. RAIN AND SLIGHT CHANCE OF THUNDERSTORMS  
IN THE EVENING, THEN CHANCE OF RAIN AND SNOW AFTER MIDNIGHT. SOME  
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE EVENING. NO SNOW  
ACCUMULATION. LOWS 31-34. CHANCE OF PRECIPITATION 80 PERCENT.    
MONDAY  
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN AND  
SNOW. HIGHS 38-42.    
MONDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW IN THE  
EVENING, THEN CHANCE OF SNOW AFTER MIDNIGHT. LOWS 31-34. CHANCE  
OF PRECIPITATION 30 PERCENT.    
TUESDAY  
CLOUDY WITH RAIN AND SNOW. HIGHS AROUND 40. CHANCE OF  
PRECIPITATION 80 PERCENT.    
TUESDAY NIGHT  
RAIN AND SNOW. LOWS 32-36. CHANCE OF  
PRECIPITATION 90 PERCENT.    
WEDNESDAY  
MOSTLY CLOUDY. RAIN AND SNOW IN THE MORNING, THEN  
CHANCE OF RAIN AND SNOW IN THE AFTERNOON AND EVENING. HIGHS  
AROUND 40. CHANCE OF PRECIPITATION 80 PERCENT.  
 
 
 
BLACK BUTTE SUMMIT-  
LOCATION...CALIFORNIA INTERSTATE 5 NEAR MILEPOST 742  
1243 PM PST SUN DEC 21 2025  
   
TONIGHT  
MOSTLY CLOUDY. RAIN SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN AFTER MIDNIGHT.  
SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE EVENING.  
LOWS 31-33. CHANCE OF PRECIPITATION 90 PERCENT.    
MONDAY  
MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW IN THE MORNING,  
THEN CHANCE OF RAIN IN THE AFTERNOON. HIGHS 40-43. CHANCE OF  
PRECIPITATION 40 PERCENT.    
MONDAY NIGHT  
MOSTLY CLOUDY. RAIN LIKELY IN THE EVENING, THEN  
RAIN AND SNOW AFTER MIDNIGHT. NO SNOW ACCUMULATION. LOWS 31-32.  
CHANCE OF PRECIPITATION 60 PERCENT.    
TUESDAY  
RAIN AND SNOW IN THE MORNING, THEN RAIN IN THE  
AFTERNOON. HIGHS AROUND 40. CHANCE OF PRECIPITATION 80 PERCENT.    
TUESDAY NIGHT  
RAIN IN THE EVENING, THEN RAIN AND SNOW AFTER  
MIDNIGHT. LOWS AROUND 32. SOUTH WINDS 20 TO 25 MPH. CHANCE OF  
PRECIPITATION NEAR 100 PERCENT.    
WEDNESDAY  
RAIN AND SNOW. HIGHS 37-39. SOUTH WINDS 20 TO 25 MPH  
IN THE MORNING BECOMING LIGHT, THEN BECOMING SOUTHEAST AROUND  
20 MPH IN THE EVENING. CHANCE OF PRECIPITATION 90 PERCENT.  
 
 
 
GRASS LAKE/MT HEBRON SUMMIT-  
LOCATION...CALIFORNIA HIGHWAY 97 NEAR MILEPOST 20  
1243 PM PST SUN DEC 21 2025  
   
TONIGHT  
MOSTLY CLOUDY. RAIN SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF RAIN AND SNOW  
AFTER MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN  
THE EVENING. NO SNOW ACCUMULATION. LOWS AROUND 28. CHANCE OF  
PRECIPITATION 80 PERCENT.    
MONDAY  
MOSTLY CLOUDY. CHANCE OF SNOW IN THE MORNING, THEN  
CHANCE OF RAIN AND SNOW IN THE AFTERNOON. HIGHS 43-45. CHANCE OF  
PRECIPITATION 30 PERCENT.    
MONDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF SNOW IN THE EVENING,  
THEN SNOW AFTER MIDNIGHT. LOWS 27-28. CHANCE OF SNOW 50 PERCENT.    
TUESDAY  
CLOUDY. RAIN AND SNOW. HIGHS 41-42. CHANCE OF  
PRECIPITATION 80 PERCENT.    
TUESDAY NIGHT  
CLOUDY. RAIN AND SNOW. LOWS AROUND 30. CHANCE OF  
PRECIPITATION 90 PERCENT.    
WEDNESDAY  
SNOW IN THE MORNING, THEN SNOW LIKELY IN THE  
AFTERNOON. SNOW IN THE EVENING. HIGHS AROUND 40. CHANCE OF SNOW  
80 PERCENT.  
 
 
 
WARNER MOUNTAIN SUMMIT-  
LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 4  
1243 PM PST SUN DEC 21 2025  
   
TONIGHT  
MOSTLY CLOUDY. RAIN AND SNOW IN THE EVENING, THEN RAIN  
AND SNOW LIKELY AFTER MIDNIGHT. NO SNOW ACCUMULATION. LOWS AROUND  
33. SOUTHWEST WINDS AROUND 20 MPH. CHANCE OF PRECIPITATION  
80 PERCENT.    
MONDAY  
MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF RAIN AND  
SNOW. HIGHS AROUND 40. SOUTHWEST WINDS AROUND 20 MPH IN THE  
MORNING BECOMING LIGHT.    
MONDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW IN THE  
EVENING, THEN RAIN AND SNOW AFTER MIDNIGHT. NO SNOW ACCUMULATION.  
LOWS 33-34. CHANCE OF PRECIPITATION 80 PERCENT.    
TUESDAY  
RAIN AND SNOW IN THE MORNING, THEN RAIN AND SNOW  
LIKELY IN THE AFTERNOON. HIGHS 42-43. CHANCE OF PRECIPITATION  
80 PERCENT.    
TUESDAY NIGHT  
MOSTLY CLOUDY. RAIN IN THE EVENING, THEN RAIN  
AND SNOW AFTER MIDNIGHT. LOWS AROUND 35. SOUTH WINDS 20 TO  
25 MPH. CHANCE OF PRECIPITATION 80 PERCENT.    
WEDNESDAY  
MOSTLY CLOUDY. RAIN AND SNOW IN THE MORNING, THEN  
CHANCE OF SNOW IN THE AFTERNOON. SNOW LIKELY IN THE EVENING.  
HIGHS 38-39. SOUTHWEST WINDS 20 TO 25 MPH BECOMING LIGHT. CHANCE  
OF PRECIPITATION 80 PERCENT.  
 
 
 
CEDAR PASS-  
LOCATION...CALIFORNIA HIGHWAY 299 NEAR MILEPOST 51  
1243 PM PST SUN DEC 21 2025  
   
TONIGHT  
CLOUDY. RAIN IN THE EVENING, THEN RAIN AND SNOW LIKELY  
AFTER MIDNIGHT. NO SNOW ACCUMULATION. LOWS AROUND 34. SOUTHWEST  
WINDS 25 TO 30 MPH. GUSTS UP TO 50 MPH IN THE EVENING. CHANCE OF  
PRECIPITATION 80 PERCENT.    
MONDAY  
RAIN AND SNOW LIKELY. NO SNOW ACCUMULATION. HIGHS  
AROUND 40. SOUTHWEST WINDS 20 TO 25 MPH. CHANCE OF PRECIPITATION  
60 PERCENT.    
MONDAY NIGHT  
RAIN AND SNOW. NO SNOW ACCUMULATION. LOWS AROUND  
37. SOUTH WINDS AROUND 20 MPH. CHANCE OF PRECIPITATION  
90 PERCENT.    
TUESDAY  
MOSTLY CLOUDY. RAIN AND SNOW LIKELY IN THE MORNING,  
THEN CHANCE OF RAIN AND SNOW IN THE AFTERNOON. HIGHS 40-43. SOUTH  
WINDS 20 TO 25 MPH IN THE AFTERNOON. CHANCE OF PRECIPITATION  
70 PERCENT.    
TUESDAY NIGHT  
MOSTLY CLOUDY WITH RAIN AND SNOW. LOWS AROUND  
35. SOUTH WINDS 25 TO 30 MPH. CHANCE OF PRECIPITATION 90 PERCENT.   
WEDNESDAY  
MOSTLY CLOUDY. SNOW IN THE MORNING, THEN CHANCE OF  
SNOW IN THE AFTERNOON. SNOW IN THE EVENING. HIGHS 36-37. SOUTH  
WINDS 20 TO 30 MPH. CHANCE OF SNOW 90 PERCENT.  
 
 
 
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