924
FPUS86 KMFR 042138
TVLMFR
FORECAST FOR MOUNTAIN PASSES
NATIONAL WEATHER SERVICE MEDFORD, OR
238 PM PDT TUE AUG 4 2026
CANYON CREEK PASS-
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 81
238 PM PDT TUE AUG 4 2026
..HEAT ADVISORY IN EFFECT UNTIL 11 PM PDT WEDNESDAY
TONIGHT
MOSTLY CLEAR. SMOKE. LOWS AROUND 60.
WEDNESDAY
SUNNY. AREAS OF SMOKE. HIGHS AROUND 94.
WEDNESDAY NIGHT
CLEAR. AREAS OF SMOKE. LOWS AROUND 61.
THURSDAY
SUNNY. HIGHS AROUND 95.
THURSDAY NIGHT
CLEAR. LOWS AROUND 60.
FRIDAY
CLEAR. HIGHS AROUND 96.
SEXTON SUMMIT-
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 69
238 PM PDT TUE AUG 4 2026
..HEAT ADVISORY IN EFFECT UNTIL 11 PM PDT THURSDAY
TONIGHT
CLEAR. AREAS OF SMOKE IN THE EVENING, THEN SMOKE AFTER
MIDNIGHT. LOWS 61-63.
WEDNESDAY
SUNNY. AREAS OF SMOKE. HIGHS 94-95.
WEDNESDAY NIGHT
MOSTLY CLEAR. AREAS OF SMOKE. LOWS 63-65.
THURSDAY
SUNNY. HIGHS 94-95.
THURSDAY NIGHT
CLEAR. LOWS 63-65.
FRIDAY
CLEAR. HIGHS 92-93.
HAYES HILL SUMMIT-
LOCATION...OREGON HIGHWAY 199 NEAR MILEPOST 16
238 PM PDT TUE AUG 4 2026
..HEAT ADVISORY IN EFFECT UNTIL 11 PM PDT THURSDAY
TONIGHT
CLEAR. AREAS OF SMOKE. LOWS AROUND 61.
WEDNESDAY
SUNNY. AREAS OF SMOKE. HIGHS AROUND 103.
WEDNESDAY NIGHT
MOSTLY CLEAR. PATCHY SMOKE IN THE EVENING,
THEN AREAS OF SMOKE AFTER MIDNIGHT. LOWS AROUND 62.
THURSDAY
SUNNY. HIGHS AROUND 103.
THURSDAY NIGHT
CLEAR. LOWS AROUND 61.
FRIDAY
SUNNY IN THE MORNING THEN BECOMING CLEAR. HIGHS AROUND
101.
WILLAMETTE PASS-
LOCATION...OREGON HIGHWAY 58 NEAR MILEPOST 62
238 PM PDT TUE AUG 4 2026
TONIGHT
MOSTLY CLEAR THEN BECOMING PARTLY CLOUDY IN THE LATE
EVENING AND EARLY MORNING THEN BECOMING MOSTLY CLEAR. AREAS OF
SMOKE. LOWS 52-54.
WEDNESDAY
SUNNY. AREAS OF SMOKE. HIGHS 79-85.
WEDNESDAY NIGHT
MOSTLY CLEAR. AREAS OF SMOKE. LOWS 55-56.
THURSDAY
SUNNY. HIGHS 79-86.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 55-56.
FRIDAY
CLEAR. HIGHS 81-88.
DIAMOND LAKE SUMMIT-
LOCATION...OREGON HIGHWAY 138 NEAR MILEPOST 83
238 PM PDT TUE AUG 4 2026
TONIGHT
MOSTLY CLEAR. AREAS OF SMOKE. LOWS 51-53.
WEDNESDAY
SUNNY. AREAS OF SMOKE IN THE MORNING, THEN PATCHY
SMOKE IN THE AFTERNOON. HIGHS 83-85.
WEDNESDAY NIGHT
MOSTLY CLEAR. AREAS OF SMOKE. LOWS 53-55.
THURSDAY
SUNNY. HIGHS 83-85.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 53-55.
FRIDAY
CLEAR. HIGHS 85-88.
CRATER LAKE-
LOCATION...OREGON HIGHWAY 62 NEAR MILEPOST 65
238 PM PDT TUE AUG 4 2026
TONIGHT
MOSTLY CLEAR. AREAS OF SMOKE. LOWS 50-52.
WEDNESDAY
SUNNY. AREAS OF SMOKE IN THE MORNING, THEN PATCHY
SMOKE IN THE AFTERNOON. HIGHS 80-86.
WEDNESDAY NIGHT
MOSTLY CLEAR. AREAS OF SMOKE. LOWS 52-54.
THURSDAY
SUNNY. HIGHS 81-86.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 52-54.
FRIDAY
CLEAR. HIGHS 83-90.
LAKE OF THE WOODS-
LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 33
238 PM PDT TUE AUG 4 2026
...HEAT ADVISORY IN EFFECT FROM 11 AM WEDNESDAY TO 11 PM PDT
THURSDAY...
TONIGHT
CLEAR. PATCHY SMOKE IN THE EVENING, THEN AREAS OF
SMOKE AFTER MIDNIGHT. LOWS 54-57.
WEDNESDAY
SUNNY. AREAS OF SMOKE IN THE MORNING, THEN PATCHY
SMOKE IN THE AFTERNOON. HIGHS 89-92.
WEDNESDAY NIGHT
CLEAR. AREAS OF SMOKE. LOWS 56-58.
THURSDAY
SUNNY. HIGHS 89-92.
THURSDAY NIGHT
CLEAR. LOWS 56-58.
FRIDAY
CLEAR. HIGHS 89-93.
SISKIYOU SUMMIT-
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 4
238 PM PDT TUE AUG 4 2026
..HEAT ADVISORY IN EFFECT UNTIL 11 PM PDT THURSDAY
TONIGHT
CLEAR. PATCHY SMOKE IN THE EVENING, THEN AREAS OF
SMOKE AFTER MIDNIGHT. LOWS 61-65.
WEDNESDAY
SUNNY. AREAS OF SMOKE IN THE MORNING, THEN PATCHY
SMOKE IN THE AFTERNOON. HIGHS 88-95.
WEDNESDAY NIGHT
CLEAR. AREAS OF SMOKE THROUGH THE NIGHT. LOWS
62-67.
THURSDAY
SUNNY. HIGHS 88-95.
THURSDAY NIGHT
CLEAR. LOWS 62-66.
FRIDAY
CLEAR. HIGHS 86-95.
BLACK BUTTE SUMMIT-
LOCATION...CALIFORNIA INTERSTATE 5 NEAR MILEPOST 742
238 PM PDT TUE AUG 4 2026
..HEAT ADVISORY IN EFFECT UNTIL 11 PM PDT THURSDAY
TONIGHT
CLEAR. LOWS 61-64.
WEDNESDAY
SUNNY. HIGHS 91-95.
WEDNESDAY NIGHT
CLEAR. LOWS 60-65.
THURSDAY
SUNNY. HIGHS 91-95.
THURSDAY NIGHT
CLEAR. LOWS 60-64.
FRIDAY
CLEAR. HIGHS 92-96.
GRASS LAKE/MT HEBRON SUMMIT-
LOCATION...CALIFORNIA HIGHWAY 97 NEAR MILEPOST 20
238 PM PDT TUE AUG 4 2026
...HEAT ADVISORY IN EFFECT FROM 11 AM WEDNESDAY TO 11 PM PDT
THURSDAY...
TONIGHT
CLEAR. PATCHY SMOKE AFTER MIDNIGHT. LOWS 55-56.
WEDNESDAY
SUNNY. PATCHY SMOKE IN THE MORNING. HIGHS 93-94.
WEDNESDAY NIGHT
CLEAR. PATCHY SMOKE. LOWS AROUND 56.
THURSDAY
SUNNY. HIGHS 93-94.
THURSDAY NIGHT
CLEAR. LOWS AROUND 56.
FRIDAY
CLEAR. HIGHS 93-94.
WARNER MOUNTAIN SUMMIT-
LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 4
238 PM PDT TUE AUG 4 2026
...HEAT ADVISORY IN EFFECT FROM 11 AM WEDNESDAY TO 11 PM PDT
THURSDAY...
TONIGHT
MOSTLY CLEAR. PATCHY SMOKE AFTER MIDNIGHT. LOWS 54-55.
WEDNESDAY
SUNNY. PATCHY SMOKE. HIGHS AROUND 90.
WEDNESDAY NIGHT
MOSTLY CLEAR. PATCHY SMOKE AFTER MIDNIGHT.
LOWS 56-57.
THURSDAY
SUNNY. HIGHS AROUND 90.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 56-57.
FRIDAY
SUNNY IN THE MORNING THEN BECOMING CLEAR. HIGHS AROUND
90.
CEDAR PASS-
LOCATION...CALIFORNIA HIGHWAY 299 NEAR MILEPOST 51
238 PM PDT TUE AUG 4 2026
...HEAT ADVISORY IN EFFECT FROM 11 AM WEDNESDAY TO 11 PM PDT
THURSDAY...
TONIGHT
MOSTLY CLEAR. LOWS AROUND 56.
WEDNESDAY
SUNNY. HIGHS 83-87.
WEDNESDAY NIGHT
CLEAR. LOWS 56-57.
THURSDAY
SUNNY. HIGHS 84-87.
THURSDAY NIGHT
CLEAR. LOWS AROUND 57.
FRIDAY
SUNNY IN THE MORNING THEN BECOMING CLEAR. HIGHS 85-87.
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