240 

FPUS86 KMFR 182139

TVLMFR



FORECAST FOR MOUNTAIN PASSES

NATIONAL WEATHER SERVICE MEDFORD, OR

239 PM PDT MON MAY 18 2026



$$



CANYON CREEK PASS-

LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 81

239 PM PDT MON MAY 18 2026



.TONIGHT...CLEAR. LOWS AROUND 40. 

.TUESDAY...SUNNY. HIGHS AROUND 70. 

.TUESDAY NIGHT...MOSTLY CLOUDY. LOWS AROUND 44. 

.WEDNESDAY...MOSTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS

AROUND 71. 

.WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS AROUND 44. 

.THURSDAY...SUNNY THEN BECOMING MOSTLY CLEAR. HIGHS AROUND 77. 



$$



SEXTON SUMMIT-

LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 69

239 PM PDT MON MAY 18 2026



.TONIGHT...MOSTLY CLEAR. LOWS AROUND 42. 

.TUESDAY...SUNNY. HIGHS 68-69. 

.TUESDAY NIGHT...PARTLY CLOUDY. LOWS AROUND 48. 

.WEDNESDAY...PARTLY CLOUDY IN THE MORNING THEN BECOMING SUNNY.

HIGHS AROUND 69. 

.WEDNESDAY NIGHT...MOSTLY CLEAR IN THE EVENING THEN BECOMING

PARTLY CLOUDY. LOWS AROUND 48. 

.THURSDAY...SUNNY THEN BECOMING MOSTLY CLEAR. HIGHS 76-77. 



$$



HAYES HILL SUMMIT-

LOCATION...OREGON HIGHWAY 199 NEAR MILEPOST 16

239 PM PDT MON MAY 18 2026



.TONIGHT...MOSTLY CLEAR. LOWS AROUND 42. 

.TUESDAY...SUNNY. HIGHS AROUND 77. 

.TUESDAY NIGHT...PARTLY CLOUDY. LOWS AROUND 46. 

.WEDNESDAY...SUNNY. HIGHS AROUND 77. 

.WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS AROUND 46. 

.THURSDAY...SUNNY THEN BECOMING MOSTLY CLEAR. HIGHS AROUND 84. 



$$



WILLAMETTE PASS-

LOCATION...OREGON HIGHWAY 58 NEAR MILEPOST 62

239 PM PDT MON MAY 18 2026



.TONIGHT...MOSTLY CLEAR. LOWS 31-35. 

.TUESDAY...SUNNY. HIGHS AROUND 60. 

.TUESDAY NIGHT...MOSTLY CLOUDY. LOWS 36-38. 

.WEDNESDAY...SUNNY. HIGHS 62-65. 

.WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS AROUND 40. 

.THURSDAY...MOSTLY CLEAR. HIGHS AROUND 70. 



$$



DIAMOND LAKE SUMMIT-

LOCATION...OREGON HIGHWAY 138 NEAR MILEPOST 83

239 PM PDT MON MAY 18 2026



.TONIGHT...MOSTLY CLEAR. LOWS AROUND 30. 

.TUESDAY...SUNNY. HIGHS 61-63. 

.TUESDAY NIGHT...PARTLY CLOUDY IN THE EVENING THEN BECOMING

MOSTLY CLOUDY. LOWS 33-35. 

.WEDNESDAY...SUNNY. HIGHS 65-67. 

.WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS 36-38. 

.THURSDAY...SUNNY THEN BECOMING PARTLY CLOUDY. HIGHS 69-72. 



$$



CRATER LAKE-

LOCATION...OREGON HIGHWAY 62 NEAR MILEPOST 65

239 PM PDT MON MAY 18 2026



.TONIGHT...MOSTLY CLEAR. LOWS 27-31. 

.TUESDAY...SUNNY. HIGHS 57-62. 

.TUESDAY NIGHT...PARTLY CLOUDY IN THE EVENING THEN BECOMING

MOSTLY CLOUDY. LOWS 32-35. 

.WEDNESDAY...SUNNY. HIGHS 62-67. 

.WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS 34-38. 

.THURSDAY...SUNNY THEN BECOMING PARTLY CLOUDY. HIGHS 66-71. 



$$



LAKE OF THE WOODS-

LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 33

239 PM PDT MON MAY 18 2026



.TONIGHT...CLEAR. LOWS 32-34. 

.TUESDAY...SUNNY. HIGHS 63-66. 

.TUESDAY NIGHT...MOSTLY CLEAR IN THE EVENING THEN BECOMING PARTLY

CLOUDY. LOWS 36-38. 

.WEDNESDAY...SUNNY. HIGHS AROUND 70. 

.WEDNESDAY NIGHT...MOSTLY CLEAR IN THE EVENING THEN BECOMING

PARTLY CLOUDY. LOWS AROUND 40. 

.THURSDAY...MOSTLY CLEAR. HIGHS 72-75. 



$$



SISKIYOU SUMMIT-

LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 4

239 PM PDT MON MAY 18 2026



.TONIGHT...CLEAR. LOWS AROUND 40. GUSTS UP TO 30 MPH IN THE

EVENING. 

.TUESDAY...SUNNY. HIGHS 63-70. 

.TUESDAY NIGHT...MOSTLY CLEAR IN THE EVENING THEN BECOMING PARTLY

CLOUDY. LOWS 44-46. 

.WEDNESDAY...SUNNY. HIGHS 66-72. 

.WEDNESDAY NIGHT...MOSTLY CLEAR. LOWS 46-48. 

.THURSDAY...SUNNY THEN BECOMING MOSTLY CLEAR. HIGHS 72-78. 



$$



BLACK BUTTE SUMMIT-

LOCATION...CALIFORNIA INTERSTATE 5 NEAR MILEPOST 742

239 PM PDT MON MAY 18 2026



.TONIGHT...CLEAR. LOWS 37-39. 

.TUESDAY...SUNNY. HIGHS 70-74. 

.TUESDAY NIGHT...MOSTLY CLEAR IN THE EVENING THEN BECOMING PARTLY

CLOUDY. LOWS 43-44. 

.WEDNESDAY...SUNNY. HIGHS 75-78. 

.WEDNESDAY NIGHT...MOSTLY CLEAR. LOWS 46-47. 

.THURSDAY...MOSTLY CLEAR. HIGHS 79-83. 



$$GRASS LAKE/MT HEBRON SUMMIT-

LOCATION...CALIFORNIA HIGHWAY 97 NEAR MILEPOST 20

239 PM PDT MON MAY 18 2026



.TONIGHT...CLEAR. LOWS 32-33. 

.TUESDAY...SUNNY. HIGHS AROUND 70. 

.TUESDAY NIGHT...MOSTLY CLEAR IN THE EVENING THEN BECOMING PARTLY

CLOUDY. LOWS 37-38. 

.WEDNESDAY...SUNNY. HIGHS 74-75. 

.WEDNESDAY NIGHT...MOSTLY CLEAR. LOWS AROUND 40. 

.THURSDAY...MOSTLY CLEAR. HIGHS 77-79. 



$$



WARNER MOUNTAIN SUMMIT-

LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 4

239 PM PDT MON MAY 18 2026



.TONIGHT...MOSTLY CLEAR. LOWS 32-33. 

.TUESDAY...SUNNY. HIGHS 62-64. 

.TUESDAY NIGHT...PARTLY CLOUDY IN THE EVENING THEN BECOMING

MOSTLY CLOUDY. LOWS AROUND 39. 

.WEDNESDAY...PARTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS

68-69. 

.WEDNESDAY NIGHT...PARTLY CLOUDY IN THE EVENING THEN CLEARING.

LOWS 42-43. 

.THURSDAY...SUNNY THEN BECOMING PARTLY CLOUDY. HIGHS 72-74. 



$$



CEDAR PASS-

LOCATION...CALIFORNIA HIGHWAY 299 NEAR MILEPOST 51

239 PM PDT MON MAY 18 2026



.TONIGHT...MOSTLY CLEAR. LOWS AROUND 35. 

.TUESDAY...SUNNY. HIGHS AROUND 60. 

.TUESDAY NIGHT...MOSTLY CLEAR IN THE EVENING THEN BECOMING PARTLY

CLOUDY. LOWS AROUND 41. 

.WEDNESDAY...PARTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS

64-66. 

.WEDNESDAY NIGHT...PARTLY CLOUDY IN THE EVENING THEN BECOMING

MOSTLY CLEAR. LOWS 45-47. 

.THURSDAY...MOSTLY CLEAR. HIGHS 67-69. 



$$



VISIT US AT WWW.WEATHER.GOV/MEDFORD