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FPUS86 KMFR 172138
TVLMFR
FORECAST FOR MOUNTAIN PASSES
NATIONAL WEATHER SERVICE MEDFORD, OR
238 PM PDT MON AUG 17 2026
CANYON CREEK PASS-
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 81
238 PM PDT MON AUG 17 2026
TONIGHT
MOSTLY CLEAR. LOWS AROUND 53.
TUESDAY
SUNNY. HIGHS AROUND 85.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 53.
WEDNESDAY
PARTLY CLOUDY IN THE MORNING THEN BECOMING SUNNY.
HIGHS AROUND 85.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 54.
THURSDAY
PARTLY CLOUDY THEN BECOMING MOSTLY CLEAR. HIGHS
AROUND 87.
SEXTON SUMMIT-
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 69
238 PM PDT MON AUG 17 2026
TONIGHT
MOSTLY CLEAR. LOWS 55-58.
TUESDAY
SUNNY. HIGHS 82-83.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. LOWS 56-59.
WEDNESDAY
PARTLY CLOUDY IN THE MORNING THEN BECOMING SUNNY.
HIGHS 82-83.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60.
THURSDAY
PARTLY CLOUDY THEN CLEARING. HIGHS AROUND 84.
HAYES HILL SUMMIT-
LOCATION...OREGON HIGHWAY 199 NEAR MILEPOST 16
238 PM PDT MON AUG 17 2026
TONIGHT
MOSTLY CLEAR. LOWS AROUND 54.
TUESDAY
SUNNY. HIGHS AROUND 93.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 55.
WEDNESDAY
PARTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS
AROUND 92.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 55.
THURSDAY
PARTLY CLOUDY THEN BECOMING SUNNY IN THE AFTERNOON
THEN BECOMING PARTLY CLOUDY. HIGHS AROUND 93.
WILLAMETTE PASS-
LOCATION...OREGON HIGHWAY 58 NEAR MILEPOST 62
238 PM PDT MON AUG 17 2026
TONIGHT
PARTLY CLOUDY EARLY IN THE EVENING THEN CLEARING. LOWS
AROUND 50.
TUESDAY
SUNNY. HIGHS 73-78.
TUESDAY NIGHT
MOSTLY CLEAR IN THE EVENING THEN BECOMING PARTLY
CLOUDY. LOWS AROUND 50.
WEDNESDAY
PARTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS
75-81.
WEDNESDAY NIGHT
MOSTLY CLEAR IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS 50-52.
THURSDAY
SUNNY THEN BECOMING PARTLY CLOUDY. HIGHS 76-82.
DIAMOND LAKE SUMMIT-
LOCATION...OREGON HIGHWAY 138 NEAR MILEPOST 83
238 PM PDT MON AUG 17 2026
TONIGHT
MOSTLY CLEAR. SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING. LOWS 46-49.
TUESDAY
SUNNY. HIGHS 76-78.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS 46-49.
WEDNESDAY
PARTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS
AROUND 80.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 50.
THURSDAY
SUNNY THEN BECOMING PARTLY CLOUDY. HIGHS AROUND 80.
CRATER LAKE-
LOCATION...OREGON HIGHWAY 62 NEAR MILEPOST 65
238 PM PDT MON AUG 17 2026
TONIGHT
MOSTLY CLEAR. LOWS 45-47.
TUESDAY
SUNNY. HIGHS 74-80.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS 45-47.
WEDNESDAY
PARTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS
76-82.
WEDNESDAY NIGHT
MOSTLY CLEAR IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS 47-49.
THURSDAY
SUNNY THEN BECOMING PARTLY CLOUDY. HIGHS 76-82.
LAKE OF THE WOODS-
LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 33
238 PM PDT MON AUG 17 2026
TONIGHT
MOSTLY CLEAR. LOWS AROUND 50.
TUESDAY
SUNNY. HIGHS 80-82.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 50.
WEDNESDAY
PARTLY CLOUDY IN THE MORNING THEN BECOMING SUNNY.
HIGHS 81-85.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 50-52.
THURSDAY
SUNNY THEN BECOMING PARTLY CLOUDY. HIGHS 82-85.
SISKIYOU SUMMIT-
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 4
238 PM PDT MON AUG 17 2026
TONIGHT
MOSTLY CLEAR. LOWS 56-59.
TUESDAY
SUNNY. HIGHS 78-85.
TUESDAY NIGHT
MOSTLY CLEAR IN THE EVENING THEN BECOMING PARTLY
CLOUDY. LOWS 57-59.
WEDNESDAY
SUNNY. HIGHS 80-87.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60.
THURSDAY
SUNNY IN THE MORNING THEN BECOMING PARTLY CLOUDY.
HIGHS 81-88.
BLACK BUTTE SUMMIT-
LOCATION...CALIFORNIA INTERSTATE 5 NEAR MILEPOST 742
238 PM PDT MON AUG 17 2026
TONIGHT
MOSTLY CLEAR. LOWS 53-56.
TUESDAY
SUNNY. HIGHS 85-89.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLEAR. LOWS 55-58.
WEDNESDAY
SUNNY. HIGHS 86-90.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 56-59.
THURSDAY
SUNNY THEN BECOMING PARTLY CLOUDY. HIGHS 84-88.
GRASS LAKE/MT HEBRON SUMMIT-
LOCATION...CALIFORNIA HIGHWAY 97 NEAR MILEPOST 20
238 PM PDT MON AUG 17 2026
TONIGHT
MOSTLY CLEAR UNTIL WELL AFTER MIDNIGHT THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 47.
TUESDAY
PARTLY CLOUDY IN THE MORNING THEN BECOMING SUNNY.
HIGHS 85-87.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLEAR. LOWS AROUND 49.
WEDNESDAY
SUNNY. HIGHS 87-89.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 50.
THURSDAY
SUNNY THEN BECOMING PARTLY CLOUDY. HIGHS 86-88.
WARNER MOUNTAIN SUMMIT-
LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 4
238 PM PDT MON AUG 17 2026
TONIGHT
MOSTLY CLEAR EARLY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. PATCHY SMOKE AFTER MIDNIGHT. LOWS 51-52.
TUESDAY
PARTLY CLOUDY IN THE MORNING THEN CLEARING. PATCHY
SMOKE IN THE MORNING. HIGHS 82-84.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
53-54.
WEDNESDAY
PARTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS
84-86.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 53-55.
THURSDAY
PARTLY CLOUDY THEN BECOMING SUNNY IN THE AFTERNOON
THEN BECOMING PARTLY CLOUDY. HIGHS 84-85.
CEDAR PASS-
LOCATION...CALIFORNIA HIGHWAY 299 NEAR MILEPOST 51
238 PM PDT MON AUG 17 2026
TONIGHT
MOSTLY CLEAR EARLY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. LOWS AROUND 53.
TUESDAY
PARTLY CLOUDY IN THE MORNING THEN BECOMING SUNNY.
HIGHS 76-80.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLEAR. LOWS AROUND 54.
WEDNESDAY
PARTLY CLOUDY IN THE MORNING THEN BECOMING SUNNY.
HIGHS 79-82.
WEDNESDAY NIGHT
MOSTLY CLEAR IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 56.
THURSDAY
SUNNY THEN BECOMING PARTLY CLOUDY. HIGHS 80-83.
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