366
FPUS86 KMFR 021240
TVLMFR

FORECAST FOR MOUNTAIN PASSES
NATIONAL WEATHER SERVICE MEDFORD, OR
540 AM PDT TUE SEP 2 2025

$$

CANYON CREEK PASS-
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 81
540 AM PDT TUE SEP 2 2025

.TODAY...SUNNY UNTIL EARLY AFTERNOON THEN BECOMING PARTLY CLOUDY.
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HAZE IN THE
AFTERNOON. HIGHS AROUND 94.
.TONIGHT...MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT.
HAZE THROUGH THE NIGHT. LOWS AROUND 61.
.WEDNESDAY...PARTLY CLOUDY IN THE MORNING THEN CLEARING. HAZE IN
THE AFTERNOON. HIGHS AROUND 93.
.WEDNESDAY NIGHT...PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLEAR. HAZE IN THE EVENING. LOWS AROUND 59.
.THURSDAY...PARTLY CLOUDY IN THE MORNING THEN BECOMING MOSTLY
CLOUDY. HIGHS AROUND 93.

$$

SEXTON SUMMIT-
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 69
540 AM PDT TUE SEP 2 2025

.TODAY...SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. PATCHY SMOKE THROUGH
THE DAY. HAZE IN THE AFTERNOON. HIGHS AROUND 90.
.TONIGHT...PARTLY CLOUDY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE EVENING. PATCHY SMOKE IN THE EVENING, THEN HAZE AFTER
MIDNIGHT. LOWS 66-67.
.WEDNESDAY...PARTLY CLOUDY IN THE MORNING THEN CLEARING. PATCHY
SMOKE IN THE MORNING. HAZE AND AREAS OF SMOKE IN THE AFTERNOON.
HIGHS AROUND 88.
.WEDNESDAY NIGHT...MOSTLY CLEAR. AREAS OF SMOKE AND HAZE IN THE
EVENING. LOWS 64-65.
.THURSDAY...SUNNY IN THE MORNING THEN BECOMING PARTLY CLOUDY.
HIGHS 87-89.

$$

HAYES HILL SUMMIT-
LOCATION...OREGON HIGHWAY 199 NEAR MILEPOST 16
540 AM PDT TUE SEP 2 2025

.TODAY...SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HAZE AND PATCHY SMOKE
IN THE AFTERNOON. HIGHS AROUND 99.
.TONIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT.
AREAS OF SMOKE IN THE EVENING. HAZE THROUGH THE NIGHT. PATCHY
SMOKE AFTER MIDNIGHT. LOWS AROUND 61.
.WEDNESDAY...SUNNY. PATCHY SMOKE IN THE MORNING. HAZE IN THE
AFTERNOON. HIGHS AROUND 98.
.WEDNESDAY NIGHT...PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLEAR. HAZE IN THE EVENING. LOWS AROUND 59.
.THURSDAY...PARTLY CLOUDY. HIGHS AROUND 98.

$$

WILLAMETTE PASS-
LOCATION...OREGON HIGHWAY 58 NEAR MILEPOST 62
540 AM PDT TUE SEP 2 2025

.TODAY...SUNNY IN THE MORNING THEN BECOMING PARTLY CLOUDY. PATCHY
SMOKE IN THE MORNING. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS
80-83.
.TONIGHT...MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS. PATCHY SMOKE IN THE EVENING. HAZE THROUGH THE
NIGHT. LOWS 56-59.
.WEDNESDAY...MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS. HAZE THROUGH THE DAY. PATCHY SMOKE IN THE
AFTERNOON. HIGHS AROUND 80.
.WEDNESDAY NIGHT...PARTLY CLOUDY. A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING. SMOKE AND HAZE IN THE EVENING. LOWS
55-57.
.THURSDAY...SUNNY THEN BECOMING PARTLY CLOUDY IN THE AFTERNOON
THEN BECOMING MOSTLY CLOUDY. A 20 PERCENT CHANCE OF
THUNDERSTORMS. HIGHS AROUND 80.

$$

DIAMOND LAKE SUMMIT-
LOCATION...OREGON HIGHWAY 138 NEAR MILEPOST 83
540 AM PDT TUE SEP 2 2025

.TODAY...SUNNY IN THE MORNING THEN BECOMING PARTLY CLOUDY. CHANCE
OF THUNDERSTORMS. PATCHY SMOKE. HIGHS 82-85.
.TONIGHT...MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF
THUNDERSTORMS. SMOKE IN THE EVENING. HAZE AND PATCHY SMOKE AFTER
MIDNIGHT. LOWS 54-56.
.WEDNESDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS. HIGHS 79-82.
.WEDNESDAY NIGHT...PARTLY CLOUDY. A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING. HAZE AND PATCHY SMOKE IN THE
EVENING. LOWS 54-56.
.THURSDAY...SUNNY THEN BECOMING PARTLY CLOUDY IN THE AFTERNOON
THEN BECOMING MOSTLY CLOUDY. A 20 PERCENT CHANCE OF
THUNDERSTORMS. HIGHS 80-82.

$$

CRATER LAKE-
LOCATION...OREGON HIGHWAY 62 NEAR MILEPOST 65
540 AM PDT TUE SEP 2 2025

.TODAY...SUNNY THEN BECOMING PARTLY CLOUDY EARLY IN THE AFTERNOON
THEN BECOMING MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS. PATCHY
SMOKE THROUGH THE DAY. HIGHS 77-82.
.TONIGHT...MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF
THUNDERSTORMS. PATCHY SMOKE AFTER MIDNIGHT. LOWS 52-53.
.WEDNESDAY...PARTLY CLOUDY IN THE MORNING THEN BECOMING MOSTLY
CLOUDY. A 30 PERCENT CHANCE OF THUNDERSTORMS. HIGHS 75-80.
.WEDNESDAY NIGHT...HAZE AND PATCHY SMOKE IN THE EVENING. MOSTLY
CLOUDY WITH A 30 PERCENT CHANCE OF THUNDERSTORMS IN THE EVENING,
THEN MOSTLY CLEAR AFTER MIDNIGHT. LOWS 52-53.
.THURSDAY...PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY. A
20 PERCENT CHANCE OF THUNDERSTORMS. HIGHS 76-81.

$$

LAKE OF THE WOODS-
LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 33
540 AM PDT TUE SEP 2 2025

.TODAY...SUNNY IN THE MORNING THEN BECOMING PARTLY CLOUDY. CHANCE
OF THUNDERSTORMS. PATCHY SMOKE IN THE MORNING. HAZE IN THE
AFTERNOON. HIGHS 84-86.
.TONIGHT...MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. A 30 PERCENT CHANCE OF THUNDERSTORMS. HAZE THROUGH THE
NIGHT. LOWS 54-56.
.WEDNESDAY...SUNNY IN THE MORNING THEN BECOMING PARTLY CLOUDY.
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 82-85.
.WEDNESDAY NIGHT...HAZE AND AREAS OF SMOKE IN THE EVENING. PARTLY
CLOUDY WITH A 20 PERCENT CHANCE OF THUNDERSTORMS IN THE EVENING,
THEN MOSTLY CLEAR AFTER MIDNIGHT. LOWS 54-57.
.THURSDAY...PARTLY CLOUDY. HIGHS 82-84.

$$

SISKIYOU SUMMIT-
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 4
540 AM PDT TUE SEP 2 2025

.TODAY...SUNNY THEN BECOMING PARTLY CLOUDY EARLY IN THE AFTERNOON
THEN BECOMING MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS. PATCHY
SMOKE IN THE MORNING. HAZE IN THE AFTERNOON. HIGHS 85-91.
.TONIGHT...MOSTLY CLOUDY WITH A CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AFTER
MIDNIGHT. HAZE AND AREAS OF SMOKE IN THE EVENING, THEN PATCHY
SMOKE AFTER MIDNIGHT. LOWS 62-66. CHANCE OF PRECIPITATION
30 PERCENT.
.WEDNESDAY...SUNNY. SMOKE IN THE AFTERNOON. HIGHS 83-90.
.WEDNESDAY NIGHT...PARTLY CLOUDY IN THE EVENING THEN CLEARING.
HAZE AND SMOKE IN THE EVENING. LOWS 61-65.
.THURSDAY...SUNNY IN THE MORNING THEN BECOMING PARTLY CLOUDY.
HIGHS 82-89.

$$

BLACK BUTTE SUMMIT-
LOCATION...CALIFORNIA INTERSTATE 5 NEAR MILEPOST 742
540 AM PDT TUE SEP 2 2025

.TODAY...SUNNY IN THE MORNING, THEN MOSTLY CLOUDY WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. PATCHY SMOKE IN THE
MORNING. HAZE AND AREAS OF SMOKE IN THE AFTERNOON. HIGHS AROUND
90.
.TONIGHT...MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. A 20 PERCENT CHANCE OF THUNDERSTORMS. HAZE AND SMOKE IN
THE EVENING. PATCHY SMOKE AFTER MIDNIGHT. LOWS 58-62.
.WEDNESDAY...SUNNY. SMOKE IN THE AFTERNOON. HIGHS 86-90.
.WEDNESDAY NIGHT...PARTLY CLOUDY IN THE EVENING THEN CLEARING.
SMOKE IN THE EVENING. LOWS 59-62.
.THURSDAY...PARTLY CLOUDY. HIGHS 86-89.

$$

GRASS LAKE/MT HEBRON SUMMIT-
LOCATION...CALIFORNIA HIGHWAY 97 NEAR MILEPOST 20
540 AM PDT TUE SEP 2 2025

.TODAY...SUNNY THEN BECOMING PARTLY CLOUDY EARLY IN THE AFTERNOON
THEN BECOMING MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS. HAZE IN THE
AFTERNOON. HIGHS 86-88.
.TONIGHT...MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. HAZE IN THE EVENING. A 30 PERCENT CHANCE OF
THUNDERSTORMS. LOWS 52-53.
.WEDNESDAY...SUNNY IN THE MORNING THEN BECOMING PARTLY CLOUDY.
SLIGHT CHANCE OF THUNDERSTORMS. HAZE IN THE AFTERNOON. HIGHS
86-87.
.WEDNESDAY NIGHT...HAZE AND PATCHY SMOKE IN THE EVENING. PARTLY
CLOUDY WITH A 20 PERCENT CHANCE OF THUNDERSTORMS IN THE EVENING,
THEN MOSTLY CLEAR AFTER MIDNIGHT. LOWS AROUND 53.
.THURSDAY...PARTLY CLOUDY. HIGHS 85-86.

$$

WARNER MOUNTAIN SUMMIT-
LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 4
540 AM PDT TUE SEP 2 2025

.TODAY...SUNNY THEN BECOMING PARTLY CLOUDY EARLY IN THE AFTERNOON
THEN BECOMING MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS. HAZE
THROUGH THE DAY. HIGHS 86-88.
.TONIGHT...MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF
THUNDERSTORMS. HAZE THROUGH THE NIGHT. LOWS AROUND 57.
.WEDNESDAY...PARTLY CLOUDY WITH A SLIGHT CHANCE OF THUNDERSTORMS.
HIGHS AROUND 83.
.WEDNESDAY NIGHT...MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT.
LOWS 57-58.
.THURSDAY...PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY. A
20 PERCENT CHANCE OF THUNDERSTORMS. HIGHS 81-83.

$$

CEDAR PASS-
LOCATION...CALIFORNIA HIGHWAY 299 NEAR MILEPOST 51
540 AM PDT TUE SEP 2 2025

.TODAY...SUNNY IN THE MORNING THEN BECOMING PARTLY CLOUDY. A
30 PERCENT CHANCE OF THUNDERSTORMS. HAZE THROUGH THE DAY. PATCHY
SMOKE IN THE AFTERNOON. HIGHS 79-83.
.TONIGHT...HAZE IN THE EVENING. MOSTLY CLOUDY WITH A 30 PERCENT
CHANCE OF THUNDERSTORMS. LOWS 58-59.
.WEDNESDAY...PARTLY CLOUDY WITH A SLIGHT CHANCE OF THUNDERSTORMS.
HIGHS 76-80.
.WEDNESDAY NIGHT...MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT.
LOWS 57-58.
.THURSDAY...PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY. A
20 PERCENT CHANCE OF THUNDERSTORMS. HIGHS 76-79.

$$

VISIT US AT WWW.WEATHER.GOV/MEDFORD