674
FPUS86 KMFR 312138
TVLMFR
FORECAST FOR MOUNTAIN PASSES
NATIONAL WEATHER SERVICE MEDFORD, OR
238 PM PDT MON AUG 31 2026
CANYON CREEK PASS-
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 81
238 PM PDT MON AUG 31 2026
TONIGHT
PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY LATE IN THE
EVENING THEN BECOMING PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY
WELL AFTER MIDNIGHT. LOWS AROUND 51.
TUESDAY
MOSTLY CLOUDY. CHANCE OF RAIN IN THE AFTERNOON. HIGHS
AROUND 72.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF RAIN.
LOWS AROUND 50.
WEDNESDAY
CLOUDY. CHANCE OF RAIN IN THE MORNING, THEN RAIN IN
THE AFTERNOON. HIGHS AROUND 62. CHANCE OF RAIN 90 PERCENT.
WEDNESDAY NIGHT
CLOUDY WITH RAIN. LOWS AROUND 50. CHANCE OF
RAIN 80 PERCENT.
THURSDAY
MOSTLY CLOUDY. RAIN LIKELY IN THE MORNING, THEN
SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF RAIN IN THE EVENING. HIGHS AROUND 65. CHANCE
OF PRECIPITATION 60 PERCENT.
SEXTON SUMMIT-
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 69
238 PM PDT MON AUG 31 2026
TONIGHT
PARTLY CLOUDY. LOWS 52-53.
TUESDAY
MOSTLY CLOUDY. CHANCE OF RAIN IN THE AFTERNOON. HIGHS
64-66.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. A 30 PERCENT CHANCE OF RAIN. LOWS AROUND 50.
WEDNESDAY
CLOUDY. CHANCE OF RAIN IN THE MORNING, THEN RAIN IN
THE AFTERNOON. HIGHS 55-57. CHANCE OF RAIN 90 PERCENT.
WEDNESDAY NIGHT
RAIN. LOWS AROUND 50. CHANCE OF RAIN
80 PERCENT.
THURSDAY
RAIN LIKELY IN THE MORNING, THEN SHOWERS LIKELY AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. CHANCE OF RAIN
IN THE EVENING. HIGHS AROUND 59. CHANCE OF PRECIPITATION
60 PERCENT.
HAYES HILL SUMMIT-
LOCATION...OREGON HIGHWAY 199 NEAR MILEPOST 16
238 PM PDT MON AUG 31 2026
TONIGHT
MOSTLY CLEAR THEN BECOMING PARTLY CLOUDY LATE IN THE
EVENING THEN BECOMING MOSTLY CLEAR. LOWS AROUND 47.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN MOSTLY CLOUDY WITH
A 20 PERCENT CHANCE OF RAIN IN THE AFTERNOON. HIGHS AROUND 73.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF RAIN.
LOWS AROUND 49.
WEDNESDAY
CLOUDY. CHANCE OF RAIN IN THE MORNING, THEN RAIN IN
THE AFTERNOON. HIGHS AROUND 66. CHANCE OF RAIN 90 PERCENT.
WEDNESDAY NIGHT
CLOUDY WITH RAIN. LOWS AROUND 50. CHANCE OF
RAIN 90 PERCENT.
THURSDAY
MOSTLY CLOUDY. RAIN LIKELY IN THE MORNING, THEN
SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF RAIN IN THE EVENING. HIGHS AROUND 67. CHANCE
OF PRECIPITATION 70 PERCENT.
WILLAMETTE PASS-
LOCATION...OREGON HIGHWAY 58 NEAR MILEPOST 62
238 PM PDT MON AUG 31 2026
TONIGHT
MOSTLY CLEAR EARLY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS 44-47.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN MOSTLY CLOUDY WITH
A 20 PERCENT CHANCE OF RAIN IN THE AFTERNOON. HIGHS 60-65.
TUESDAY NIGHT
MOSTLY CLOUDY. RAIN LIKELY IN THE EVENING, THEN
CHANCE OF RAIN AFTER MIDNIGHT. LOWS 41-42. CHANCE OF RAIN
60 PERCENT.
WEDNESDAY
MOSTLY CLOUDY. CHANCE OF RAIN IN THE MORNING, THEN
RAIN IN THE AFTERNOON. HIGHS 47-51. CHANCE OF RAIN 90 PERCENT.
WEDNESDAY NIGHT
RAIN. LOWS AROUND 40. CHANCE OF RAIN NEAR
100 PERCENT.
THURSDAY
RAIN IN THE MORNING, THEN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. RAIN IN THE EVENING. HIGHS
47-51. CHANCE OF PRECIPITATION 80 PERCENT.
DIAMOND LAKE SUMMIT-
LOCATION...OREGON HIGHWAY 138 NEAR MILEPOST 83
238 PM PDT MON AUG 31 2026
TONIGHT
MOSTLY CLEAR EARLY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS 40-42.
TUESDAY
SUNNY IN THE MORNING, THEN MOSTLY CLOUDY WITH RAIN
LIKELY IN THE AFTERNOON. HIGHS 61-64.
TUESDAY NIGHT
MOSTLY CLOUDY. RAIN LIKELY IN THE EVENING, THEN
CHANCE OF RAIN AFTER MIDNIGHT. LOWS 36-38. CHANCE OF RAIN
70 PERCENT.
WEDNESDAY
CHANCE OF RAIN IN THE MORNING, THEN RAIN IN THE
AFTERNOON. HIGHS AROUND 50. SOUTHWEST WINDS AROUND 20 MPH IN THE
AFTERNOON. CHANCE OF RAIN NEAR 100 PERCENT.
WEDNESDAY NIGHT
RAIN. LOWS 36-38. SOUTHWEST WINDS AROUND
20 MPH AFTER MIDNIGHT. CHANCE OF RAIN NEAR 100 PERCENT.
THURSDAY
RAIN IN THE MORNING, THEN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. RAIN LIKELY IN THE EVENING.
HIGHS AROUND 50. CHANCE OF PRECIPITATION 80 PERCENT.
CRATER LAKE-
LOCATION...OREGON HIGHWAY 62 NEAR MILEPOST 65
238 PM PDT MON AUG 31 2026
TONIGHT
MOSTLY CLEAR THEN BECOMING MOSTLY CLOUDY IN THE LATE
EVENING AND EARLY MORNING THEN BECOMING PARTLY CLOUDY. LOWS
AROUND 40.
TUESDAY
SUNNY IN THE MORNING, THEN MOSTLY CLOUDY WITH RAIN
LIKELY IN THE AFTERNOON. HIGHS 58-64.
TUESDAY NIGHT
MOSTLY CLOUDY. RAIN LIKELY IN THE EVENING, THEN
CHANCE OF RAIN AFTER MIDNIGHT. LOWS 35-36. CHANCE OF RAIN
70 PERCENT.
WEDNESDAY
MOSTLY CLOUDY. CHANCE OF RAIN IN THE MORNING, THEN
RAIN IN THE AFTERNOON. HIGHS 46-52. SOUTHWEST WINDS AROUND 20 MPH
IN THE AFTERNOON. CHANCE OF RAIN 90 PERCENT.
WEDNESDAY NIGHT
RAIN. LOWS 35-37. SOUTHWEST WINDS AROUND
20 MPH AFTER MIDNIGHT. CHANCE OF RAIN NEAR 100 PERCENT.
THURSDAY
RAIN IN THE MORNING, THEN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. RAIN LIKELY IN THE
EVENING. HIGHS 45-51. CHANCE OF PRECIPITATION 90 PERCENT.
LAKE OF THE WOODS-
LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 33
238 PM PDT MON AUG 31 2026
TONIGHT
PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY LATE IN THE
EVENING THEN BECOMING PARTLY CLOUDY THEN BECOMING MOSTLY CLEAR
WELL AFTER MIDNIGHT. LOWS 43-46.
TUESDAY
SUNNY IN THE MORNING, THEN CLOUDY WITH RAIN IN THE
AFTERNOON. HIGHS 63-66.
TUESDAY NIGHT
MOSTLY CLOUDY. RAIN IN THE EVENING, THEN CHANCE
OF RAIN AFTER MIDNIGHT. LOWS AROUND 40. CHANCE OF RAIN
80 PERCENT.
WEDNESDAY
MOSTLY CLOUDY. CHANCE OF RAIN IN THE MORNING, THEN
RAIN IN THE AFTERNOON. HIGHS 52-55. CHANCE OF RAIN 80 PERCENT.
WEDNESDAY NIGHT
RAIN. LOWS 41-42. CHANCE OF RAIN NEAR
100 PERCENT.
THURSDAY
RAIN IN THE MORNING, THEN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. CHANCE OF RAIN IN THE
EVENING. HIGHS 52-55. CHANCE OF PRECIPITATION 90 PERCENT.
SISKIYOU SUMMIT-
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 4
238 PM PDT MON AUG 31 2026
TONIGHT
MOSTLY CLEAR THEN BECOMING PARTLY CLOUDY IN THE LATE
EVENING AND EARLY MORNING THEN BECOMING MOSTLY CLEAR. LOWS AROUND
50.
TUESDAY
SUNNY IN THE MORNING, THEN MOSTLY CLOUDY WITH SHOWERS
LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS
61-69.
TUESDAY NIGHT
MOSTLY CLOUDY. SHOWERS LIKELY AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN AFTER
MIDNIGHT. LOWS 45-46. CHANCE OF PRECIPITATION 70 PERCENT.
WEDNESDAY
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN.
HIGHS 51-58.
WEDNESDAY NIGHT
RAIN. LOWS 44-47. CHANCE OF RAIN 90 PERCENT.
THURSDAY
MOSTLY CLOUDY. RAIN IN THE MORNING, THEN CHANCE OF
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
CHANCE OF RAIN IN THE EVENING. HIGHS 52-59. CHANCE OF
PRECIPITATION 80 PERCENT.
BLACK BUTTE SUMMIT-
LOCATION...CALIFORNIA INTERSTATE 5 NEAR MILEPOST 742
238 PM PDT MON AUG 31 2026
TONIGHT
PARTLY CLOUDY UNTIL WELL AFTER MIDNIGHT THEN CLEARING.
PATCHY SMOKE IN THE EVENING. LOWS 43-46.
TUESDAY
SUNNY IN THE MORNING, THEN MOSTLY CLOUDY WITH RAIN
LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS
61-65. SOUTHEAST WINDS AROUND 20 MPH IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLOUDY. SHOWERS LIKELY AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN AFTER
MIDNIGHT. LOWS 41-45. CHANCE OF PRECIPITATION 60 PERCENT.
WEDNESDAY
RAIN LIKELY. HIGHS 53-57. CHANCE OF RAIN 70 PERCENT.
WEDNESDAY NIGHT
RAIN. LOWS 43-46. CHANCE OF RAIN 90 PERCENT.
THURSDAY
RAIN IN THE MORNING, THEN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. RAIN LIKELY IN THE
EVENING. HIGHS 56-60. CHANCE OF PRECIPITATION 90 PERCENT.
GRASS LAKE/MT HEBRON SUMMIT-
LOCATION...CALIFORNIA HIGHWAY 97 NEAR MILEPOST 20
238 PM PDT MON AUG 31 2026
TONIGHT
MOSTLY CLEAR THEN BECOMING PARTLY CLOUDY IN THE LATE
EVENING AND EARLY MORNING THEN BECOMING MOSTLY CLEAR. PATCHY
SMOKE. LOWS AROUND 38.
TUESDAY
SUNNY IN THE MORNING, THEN MOSTLY CLOUDY WITH A CHANCE
OF RAIN IN THE AFTERNOON. HIGHS 66-68.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN.
LOWS AROUND 36.
WEDNESDAY
MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF RAIN.
HIGHS 57-59.
WEDNESDAY NIGHT
CLOUDY WITH RAIN. LOWS AROUND 38. CHANCE OF
RAIN 90 PERCENT.
THURSDAY
MOSTLY CLOUDY. RAIN IN THE MORNING, THEN SHOWERS
LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. RAIN
LIKELY IN THE EVENING. HIGHS 58-59. CHANCE OF PRECIPITATION
80 PERCENT.
WARNER MOUNTAIN SUMMIT-
LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 4
238 PM PDT MON AUG 31 2026
TONIGHT
MOSTLY CLEAR THEN BECOMING PARTLY CLOUDY LATE IN THE
EVENING THEN BECOMING MOSTLY CLOUDY. PATCHY SMOKE. LOWS 48-49.
TUESDAY
SUNNY. PATCHY SMOKE. HIGHS AROUND 70. SOUTHWEST WINDS
AROUND 20 MPH IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS 41-42.
WEDNESDAY
MOSTLY CLOUDY. HIGHS 56-57. SOUTHWEST WINDS 20 TO
25 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING,
THEN RAIN AFTER MIDNIGHT. LOWS 41-43. SOUTHWEST WINDS 20 TO
25 MPH. CHANCE OF RAIN 80 PERCENT.
THURSDAY
RAIN IN THE MORNING, THEN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. RAIN LIKELY IN THE EVENING.
HIGHS 54-56. CHANCE OF PRECIPITATION 80 PERCENT.
CEDAR PASS-
LOCATION...CALIFORNIA HIGHWAY 299 NEAR MILEPOST 51
238 PM PDT MON AUG 31 2026
TONIGHT
MOSTLY CLEAR EARLY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. PATCHY SMOKE. LOWS AROUND 49. SOUTHWEST WINDS AROUND
20 MPH EARLY IN THE EVENING BECOMING LIGHT.
TUESDAY
SUNNY IN THE MORNING THEN BECOMING PARTLY CLOUDY.
PATCHY SMOKE. HIGHS 64-67. SOUTHWEST WINDS AROUND 20 MPH IN THE
AFTERNOON.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 41. WEST WINDS 20 TO 25 MPH.
WEDNESDAY
MOSTLY CLOUDY. HIGHS 54-57. SOUTHWEST WINDS 20 TO
25 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
MOSTLY CLOUDY. A 40 PERCENT CHANCE OF RAIN
AFTER MIDNIGHT. LOWS AROUND 45. SOUTHWEST WINDS 20 TO 25 MPH.
THURSDAY
RAIN IN THE MORNING, THEN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON AND EVENING. HIGHS 51-54. WEST
WINDS AROUND 20 MPH IN THE AFTERNOON BECOMING LIGHT. CHANCE OF
PRECIPITATION 80 PERCENT.
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