225
FPUS86 KMFR 200938
TVLMFR
FORECAST FOR MOUNTAIN PASSES
NATIONAL WEATHER SERVICE MEDFORD, OR
238 AM PDT THU AUG 20 2026
CANYON CREEK PASS-
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 81
238 AM PDT THU AUG 20 2026
TODAY
SUNNY. HIGHS AROUND 93.
TONIGHT
MOSTLY CLEAR IN THE EVENING THEN BECOMING PARTLY
CLOUDY. LOWS AROUND 58.
FRIDAY
CLOUDY. HIGHS AROUND 84.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 53.
SATURDAY
PARTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS
AROUND 79.
SEXTON SUMMIT-
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 69
238 AM PDT THU AUG 20 2026
TODAY
SUNNY. HIGHS AROUND 90.
TONIGHT
MOSTLY CLEAR IN THE EVENING THEN BECOMING PARTLY
CLOUDY. LOWS 63-65.
FRIDAY
CLOUDY. HIGHS AROUND 82.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 56-57.
SATURDAY
PARTLY CLOUDY IN THE MORNING THEN BECOMING CLEAR.
HIGHS AROUND 75.
HAYES HILL SUMMIT-
LOCATION...OREGON HIGHWAY 199 NEAR MILEPOST 16
238 AM PDT THU AUG 20 2026
TODAY
SUNNY. HIGHS AROUND 97.
TONIGHT
MOSTLY CLEAR. LOWS AROUND 57.
FRIDAY
CLOUDY. HIGHS AROUND 91.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 52.
SATURDAY
SUNNY IN THE MORNING THEN BECOMING CLEAR. HIGHS
AROUND 84.
WILLAMETTE PASS-
LOCATION...OREGON HIGHWAY 58 NEAR MILEPOST 62
238 AM PDT THU AUG 20 2026
TODAY
SUNNY. PATCHY SMOKE IN THE MORNING. HIGHS 79-85.
TONIGHT
MOSTLY CLOUDY. PATCHY SMOKE AFTER MIDNIGHT. LOWS
54-56.
FRIDAY
CLOUDY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS 76-82.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY AFTER
MIDNIGHT. LOWS 49-52. CHANCE OF PRECIPITATION 30 PERCENT.
SATURDAY
SUNNY THEN BECOMING MOSTLY CLEAR. HIGHS 67-71.
DIAMOND LAKE SUMMIT-
LOCATION...OREGON HIGHWAY 138 NEAR MILEPOST 83
238 AM PDT THU AUG 20 2026
TODAY
SUNNY UNTIL EARLY AFTERNOON THEN BECOMING MOSTLY CLOUDY.
HIGHS 81-84.
TONIGHT
MOSTLY CLOUDY. LOWS 53-54.
FRIDAY
CLOUDY. HIGHS AROUND 80.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLEAR AFTER
MIDNIGHT. LOWS AROUND 50. CHANCE OF PRECIPITATION 30 PERCENT.
SATURDAY
MOSTLY CLEAR. HIGHS AROUND 70. WEST WINDS AROUND
20 MPH IN THE AFTERNOON BECOMING LIGHT.
CRATER LAKE-
LOCATION...OREGON HIGHWAY 62 NEAR MILEPOST 65
238 AM PDT THU AUG 20 2026
TODAY
PARTLY CLOUDY THEN BECOMING SUNNY IN THE LATE MORNING
AND EARLY AFTERNOON THEN BECOMING MOSTLY CLOUDY. HIGHS 79-85.
TONIGHT
CLOUDY. LOWS 50-52.
FRIDAY
CLOUDY. HIGHS 75-81.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT.
LOWS 45-47.
SATURDAY
MOSTLY CLEAR. HIGHS 66-72.
LAKE OF THE WOODS-
LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 33
238 AM PDT THU AUG 20 2026
TODAY
PARTLY CLOUDY THEN BECOMING SUNNY LATE IN THE MORNING
THEN BECOMING PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY LATE IN
THE AFTERNOON. HIGHS 84-87.
TONIGHT
MOSTLY CLOUDY. LOWS 53-56.
FRIDAY
CLOUDY. HIGHS 81-83.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
AROUND 50.
SATURDAY
SUNNY THEN BECOMING MOSTLY CLEAR. HIGHS 72-75.
SISKIYOU SUMMIT-
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 4
238 AM PDT THU AUG 20 2026
TODAY
PARTLY CLOUDY THEN BECOMING SUNNY IN THE LATE MORNING
AND EARLY AFTERNOON THEN BECOMING MOSTLY CLOUDY. HIGHS 83-89.
TONIGHT
MOSTLY CLOUDY. LOWS 62-66.
FRIDAY
CLOUDY. HIGHS 78-85.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLEAR. LOWS 56-58.
SATURDAY
CLEAR. HIGHS 72-80.
BLACK BUTTE SUMMIT-
LOCATION...CALIFORNIA INTERSTATE 5 NEAR MILEPOST 742
238 AM PDT THU AUG 20 2026
TODAY
PARTLY CLOUDY THEN BECOMING SUNNY LATE IN THE MORNING
THEN BECOMING PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY LATE IN
THE AFTERNOON. HIGHS 85-89.
TONIGHT
CLOUDY. LOWS 59-63.
FRIDAY
MOSTLY CLOUDY. HIGHS 81-85.
FRIDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN CLEAR AFTER MIDNIGHT. LOWS
53-57.
SATURDAY
CLEAR. HIGHS 79-82.
GRASS LAKE/MT HEBRON SUMMIT-
LOCATION...CALIFORNIA HIGHWAY 97 NEAR MILEPOST 20
238 AM PDT THU AUG 20 2026
TODAY
SUNNY THEN BECOMING PARTLY CLOUDY EARLY IN THE AFTERNOON
THEN BECOMING MOSTLY CLOUDY. HIGHS 88-89.
TONIGHT
CLOUDY. LOWS AROUND 53.
FRIDAY
CLOUDY. HIGHS 84-85.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
AROUND 47.
SATURDAY
CLEAR. HIGHS AROUND 80.
WARNER MOUNTAIN SUMMIT-
LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 4
238 AM PDT THU AUG 20 2026
TODAY
PARTLY CLOUDY UNTIL EARLY AFTERNOON THEN BECOMING MOSTLY
CLOUDY. HIGHS 85-86.
TONIGHT
MOSTLY CLOUDY. LOWS AROUND 57.
FRIDAY
MOSTLY CLOUDY. HIGHS 83-85.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. LOWS 55-56.
SATURDAY
PARTLY CLOUDY THEN BECOMING SUNNY IN THE AFTERNOON
THEN BECOMING MOSTLY CLEAR. HIGHS AROUND 80. SOUTHWEST WINDS
AROUND 20 MPH IN THE AFTERNOON BECOMING LIGHT.
CEDAR PASS-
LOCATION...CALIFORNIA HIGHWAY 299 NEAR MILEPOST 51
238 AM PDT THU AUG 20 2026
TODAY
PARTLY CLOUDY. HIGHS 80-83.
TONIGHT
MOSTLY CLOUDY. LOWS AROUND 57.
FRIDAY
MOSTLY CLOUDY. HIGHS 79-82.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
AROUND 56.
SATURDAY
SUNNY THEN BECOMING MOSTLY CLEAR. HIGHS 75-78.
SOUTHWEST WINDS AROUND 20 MPH IN THE AFTERNOON BECOMING LIGHT.
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