470
FPUS86 KMFR 202138
TVLMFR
FORECAST FOR MOUNTAIN PASSES
NATIONAL WEATHER SERVICE MEDFORD, OR
238 PM PDT MON JUL 20 2026
CANYON CREEK PASS-
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 81
238 PM PDT MON JUL 20 2026
TONIGHT
MOSTLY CLOUDY. LOWS AROUND 61.
TUESDAY
SUNNY. HIGHS AROUND 94.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 61.
WEDNESDAY
SUNNY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS AROUND 94.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT.
LOWS AROUND 57.
THURSDAY
SUNNY IN THE MORNING THEN BECOMING CLEAR. HIGHS
AROUND 87.
SEXTON SUMMIT-
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 69
238 PM PDT MON JUL 20 2026
TONIGHT
PARTLY CLOUDY EARLY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 70.
TUESDAY
SUNNY IN THE MORNING THEN BECOMING PARTLY CLOUDY.
HIGHS AROUND 89.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 70.
WEDNESDAY
SUNNY WITH A SLIGHT CHANCE OF THUNDERSTORMS. HIGHS
88-89.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT.
LOWS 65-66.
THURSDAY
SUNNY IN THE MORNING THEN BECOMING CLEAR. HIGHS
82-84.
HAYES HILL SUMMIT-
LOCATION...OREGON HIGHWAY 199 NEAR MILEPOST 16
238 PM PDT MON JUL 20 2026
TONIGHT
PARTLY CLOUDY EARLY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 61.
TUESDAY
PARTLY CLOUDY. HIGHS AROUND 97.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 61.
WEDNESDAY
SUNNY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS AROUND 97.
WEDNESDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING. LOWS AROUND 57.
THURSDAY
SUNNY IN THE MORNING THEN BECOMING CLEAR. HIGHS
AROUND 89.
WILLAMETTE PASS-
LOCATION...OREGON HIGHWAY 58 NEAR MILEPOST 62
238 PM PDT MON JUL 20 2026
TONIGHT
MOSTLY CLOUDY. LOWS 54-55.
TUESDAY
PARTLY CLOUDY. AREAS OF SMOKE THROUGH THE DAY. A
20 PERCENT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 77-83.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT.
LOWS AROUND 56.
WEDNESDAY
SUNNY IN THE MORNING THEN BECOMING MOSTLY CLOUDY. A
50 PERCENT CHANCE OF THUNDERSTORMS. HIGHS 77-82.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT.
LOWS 53-55.
THURSDAY
SUNNY THEN BECOMING CLEAR. HIGHS 74-79.
DIAMOND LAKE SUMMIT-
LOCATION...OREGON HIGHWAY 138 NEAR MILEPOST 83
238 PM PDT MON JUL 20 2026
TONIGHT
MOSTLY CLOUDY. LOWS 52-54.
TUESDAY
PARTLY CLOUDY. PATCHY SMOKE THROUGH THE DAY. A
20 PERCENT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 80-83.
TUESDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT.
LOWS 52-55.
WEDNESDAY
SUNNY WITH SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS IN THE MORNING, THEN MOSTLY CLOUDY WITH A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 80-83. CHANCE OF
PRECIPITATION 60 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT.
LOWS 50-53.
THURSDAY
CLEAR. HIGHS 77-79.
CRATER LAKE-
LOCATION...OREGON HIGHWAY 62 NEAR MILEPOST 65
238 PM PDT MON JUL 20 2026
TONIGHT
MOSTLY CLOUDY. LOWS 50-52.
TUESDAY
PARTLY CLOUDY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 78-82.
TUESDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT.
LOWS 50-52.
WEDNESDAY
SUNNY IN THE MORNING THEN BECOMING MOSTLY CLOUDY. A
50 PERCENT CHANCE OF THUNDERSTORMS. HIGHS 78-82.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT.
LOWS AROUND 50.
THURSDAY
CLEAR. HIGHS 75-79.
LAKE OF THE WOODS-
LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 33
238 PM PDT MON JUL 20 2026
TONIGHT
MOSTLY CLOUDY. LOWS 55-57.
TUESDAY
SUNNY. HIGHS 82-85.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN CLEARING.
PATCHY SMOKE IN THE EVENING. LOWS 55-57.
WEDNESDAY
SUNNY IN THE MORNING THEN BECOMING MOSTLY CLOUDY. A
30 PERCENT CHANCE OF THUNDERSTORMS. HIGHS 83-86.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN CLEAR AFTER MIDNIGHT. LOWS
53-55.
THURSDAY
CLEAR. HIGHS 80-83.
SISKIYOU SUMMIT-
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 4
238 PM PDT MON JUL 20 2026
TONIGHT
PARTLY CLOUDY EARLY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. LOWS 63-68.
TUESDAY
SUNNY. HIGHS 81-88.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 64-68.
WEDNESDAY
SUNNY IN THE MORNING THEN BECOMING PARTLY CLOUDY. A
30 PERCENT CHANCE OF THUNDERSTORMS. HIGHS 82-89.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN CLEAR AFTER MIDNIGHT. LOWS
61-64.
THURSDAY
CLEAR. HIGHS 79-87.
BLACK BUTTE SUMMIT-
LOCATION...CALIFORNIA INTERSTATE 5 NEAR MILEPOST 742
238 PM PDT MON JUL 20 2026
TONIGHT
MOSTLY CLOUDY EARLY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS 58-63.
TUESDAY
SUNNY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS 85-89.
TUESDAY NIGHT
MOSTLY CLEAR. SLIGHT CHANCE OF THUNDERSTORMS IN
THE EVENING. LOWS 59-63.
WEDNESDAY
SUNNY IN THE MORNING THEN BECOMING PARTLY CLOUDY.
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 86-90.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN CLEAR AFTER MIDNIGHT. LOWS
AROUND 60.
THURSDAY
CLEAR. HIGHS 83-87.
GRASS LAKE/MT HEBRON SUMMIT-
LOCATION...CALIFORNIA HIGHWAY 97 NEAR MILEPOST 20
238 PM PDT MON JUL 20 2026
TONIGHT
PARTLY CLOUDY. LOWS AROUND 55.
TUESDAY
PARTLY CLOUDY IN THE MORNING THEN BECOMING SUNNY.
HIGHS 86-88.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 55-56.
WEDNESDAY
SUNNY IN THE MORNING THEN BECOMING PARTLY CLOUDY.
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 88-89.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN CLEAR AFTER MIDNIGHT. LOWS
52-53.
THURSDAY
CLEAR. HIGHS 85-87.
WARNER MOUNTAIN SUMMIT-
LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 4
238 PM PDT MON JUL 20 2026
TONIGHT
MOSTLY CLOUDY UNTIL WELL AFTER MIDNIGHT THEN BECOMING
PARTLY CLOUDY. SMOKE AFTER MIDNIGHT. LOWS 57-58.
TUESDAY
PARTLY CLOUDY. AREAS OF SMOKE THROUGH THE DAY. HIGHS
83-84.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60.
WEDNESDAY
PARTLY CLOUDY IN THE MORNING THEN BECOMING MOSTLY
CLOUDY. A 30 PERCENT CHANCE OF THUNDERSTORMS. HIGHS 84-86.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT.
LOWS 57-58.
THURSDAY
SUNNY THEN BECOMING CLEAR. HIGHS 86-87.
CEDAR PASS-
LOCATION...CALIFORNIA HIGHWAY 299 NEAR MILEPOST 51
238 PM PDT MON JUL 20 2026
TONIGHT
PARTLY CLOUDY THEN BECOMING MOSTLY CLEAR AFTER
MIDNIGHT THEN BECOMING MOSTLY CLOUDY. LOWS AROUND 60.
TUESDAY
MOSTLY CLOUDY IN THE MORNING THEN BECOMING PARTLY
CLOUDY. HIGHS AROUND 80.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 60.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF THUNDERSTORMS.
HIGHS 79-82.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT.
LOWS 58-59.
THURSDAY
CLEAR. HIGHS 80-83.
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