999
FPUS86 KMFR 042117
TVLMFR

FORECAST FOR MOUNTAIN PASSES
NATIONAL WEATHER SERVICE MEDFORD, OR
217 PM PDT THU SEP 4 2025

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CANYON CREEK PASS-
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 81
217 PM PDT THU SEP 4 2025

.TONIGHT...MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT.
LOWS AROUND 58.
.FRIDAY...SUNNY. HIGHS AROUND 89.
.FRIDAY NIGHT...MOSTLY CLOUDY. A 20 PERCENT CHANCE OF
THUNDERSTORMS AFTER MIDNIGHT. LOWS AROUND 56.
.SATURDAY AND SATURDAY NIGHT...PARTLY CLOUDY WITH A SLIGHT CHANCE
OF SHOWERS. HIGHS AROUND 84. LOWS 55-56.
.SUNDAY...PARTLY CLOUDY IN THE MORNING THEN BECOMING MOSTLY
CLOUDY. CHANCE OF SHOWERS IN THE AFTERNOON. CHANCE OF SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. HIGHS AROUND 79.
CHANCE OF PRECIPITATION 30 PERCENT.

$$

SEXTON SUMMIT-
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 69
217 PM PDT THU SEP 4 2025

.TONIGHT...MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT.
LOWS AROUND 64.
.FRIDAY...SUNNY. HIGHS 84-85.
.FRIDAY NIGHT...MOSTLY CLOUDY IN THE EVENING THEN CLEARING. A
20 PERCENT CHANCE OF THUNDERSTORMS. LOWS AROUND 60.
.SATURDAY...PARTLY CLOUDY. HIGHS AROUND 80.
.SATURDAY NIGHT...MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF
SHOWERS IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS
57-59.
.SUNDAY...PARTLY CLOUDY IN THE MORNING, THEN MOSTLY CLOUDY WITH A
SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON. MOSTLY CLOUDY WITH A
CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING. HIGHS 72-73. CHANCE OF PRECIPITATION 30 PERCENT.

$$

HAYES HILL SUMMIT-
LOCATION...OREGON HIGHWAY 199 NEAR MILEPOST 16
217 PM PDT THU SEP 4 2025

.TONIGHT...MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT.
LOWS AROUND 58.
.FRIDAY...SUNNY. HIGHS AROUND 93.
.FRIDAY NIGHT...MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT.
LOWS AROUND 56.
.SATURDAY AND SATURDAY NIGHT...PARTLY CLOUDY WITH A SLIGHT CHANCE
OF SHOWERS. HIGHS AROUND 88. LOWS 53-56.
.SUNDAY...PARTLY CLOUDY IN THE MORNING, THEN MOSTLY CLOUDY WITH A
SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON. MOSTLY CLOUDY WITH A
CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING. HIGHS AROUND 79. CHANCE OF PRECIPITATION 40 PERCENT.

$$

WILLAMETTE PASS-
LOCATION...OREGON HIGHWAY 58 NEAR MILEPOST 62
217 PM PDT THU SEP 4 2025

.TONIGHT...MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY LATE IN THE
EVENING THEN BECOMING MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY
WELL AFTER MIDNIGHT. SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS
54-57. CHANCE OF PRECIPITATION 20 PERCENT.
.FRIDAY...SUNNY IN THE MORNING, THEN MOSTLY CLOUDY WITH A
50 PERCENT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 75-78.
.FRIDAY NIGHT...MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. A 40 PERCENT CHANCE OF THUNDERSTORMS. LOWS 50-53.
.SATURDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS
68-72. CHANCE OF PRECIPITATION 40 PERCENT.
.SATURDAY NIGHT...MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT. LOWS AROUND 50. CHANCE OF PRECIPITATION
40 PERCENT.
.SUNDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE MORNING,
THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON AND EVENING. CHANCE
OF SHOWERS IN THE EVENING. HIGHS 60-64. CHANCE OF PRECIPITATION
40 PERCENT.

$$

DIAMOND LAKE SUMMIT-
LOCATION...OREGON HIGHWAY 138 NEAR MILEPOST 83
217 PM PDT THU SEP 4 2025

.TONIGHT...MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS
52-53. CHANCE OF PRECIPITATION 20 PERCENT.
.FRIDAY...SUNNY IN THE MORNING, THEN MOSTLY CLOUDY WITH A
40 PERCENT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 76-80.
.FRIDAY NIGHT...MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. A 30 PERCENT CHANCE OF THUNDERSTORMS. LOWS AROUND 50.
.SATURDAY...PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN MOSTLY CLOUDY WITH A CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS 71-74. CHANCE OF PRECIPITATION 40 PERCENT.
.SATURDAY NIGHT...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
WITH A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS 47-48.
CHANCE OF PRECIPITATION 30 PERCENT.
.SUNDAY...PARTLY CLOUDY IN THE MORNING THEN BECOMING MOSTLY
CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE MORNING, THEN CHANCE OF
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON AND
EVENING. HIGHS 62-65. CHANCE OF PRECIPITATION 30 PERCENT.

$$

CRATER LAKE-
LOCATION...OREGON HIGHWAY 62 NEAR MILEPOST 65
217 PM PDT THU SEP 4 2025

.TONIGHT...MOSTLY CLOUDY WITH A SLIGHT CHANCE OF THUNDERSTORMS IN
THE EVENING, THEN PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS
AFTER MIDNIGHT. LOWS 50-52. CHANCE OF PRECIPITATION 20 PERCENT.
.FRIDAY...SUNNY IN THE MORNING, THEN MOSTLY CLOUDY WITH A
40 PERCENT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 72-77.
.FRIDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS. LOWS 47-49.
.SATURDAY...PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 66-70. CHANCE OF
PRECIPITATION 50 PERCENT.
.SATURDAY NIGHT...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
WITH A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS 45-47.
CHANCE OF PRECIPITATION 30 PERCENT.
.SUNDAY...PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON AND EVENING. HIGHS
62-66. CHANCE OF PRECIPITATION 30 PERCENT.

$$

LAKE OF THE WOODS-
LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 33
217 PM PDT THU SEP 4 2025

.TONIGHT...PARTLY CLOUDY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE EVENING. LOWS 51-54.
.FRIDAY...SUNNY. SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
HIGHS 79-82.
.FRIDAY NIGHT...MOSTLY CLEAR. LOWS 49-52.
.SATURDAY...SUNNY IN THE MORNING, THEN MOSTLY CLOUDY WITH A
CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS 73-77. CHANCE OF PRECIPITATION 30 PERCENT.
.SATURDAY NIGHT...MOSTLY CLOUDY WITH A SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY WITH A SLIGHT
CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS 46-48. CHANCE OF
PRECIPITATION 20 PERCENT.
.SUNDAY...PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS, THEN
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING. HIGHS AROUND 70. CHANCE OF
PRECIPITATION 30 PERCENT.

$$

SISKIYOU SUMMIT-
LOCATION...OREGON INTERSTATE 5 NEAR MILEPOST 4
217 PM PDT THU SEP 4 2025

.TONIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT.
LOWS 58-64.
.FRIDAY...SUNNY. HIGHS 79-86.
.FRIDAY NIGHT...PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLEAR. LOWS 55-60.
.SATURDAY...SUNNY IN THE MORNING, THEN MOSTLY CLOUDY WITH A
30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. HIGHS 73-81.
.SATURDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
SHOWERS. LOWS 53-59.
.SUNDAY...PARTLY CLOUDY, THEN MOSTLY CLOUDY WITH A CHANCE OF
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. HIGHS
66-74. CHANCE OF PRECIPITATION 30 PERCENT.

$$

BLACK BUTTE SUMMIT-
LOCATION...CALIFORNIA INTERSTATE 5 NEAR MILEPOST 742
217 PM PDT THU SEP 4 2025

.TONIGHT...PARTLY CLOUDY UNTIL WELL AFTER MIDNIGHT THEN CLEARING.
LOWS 54-58.
.FRIDAY...SUNNY. HIGHS 82-85.
.FRIDAY NIGHT...MOSTLY CLEAR. LOWS 52-56.
.SATURDAY AND SATURDAY NIGHT...MOSTLY CLEAR. HIGHS AROUND 80.
LOWS 50-56.
.SUNDAY...PARTLY CLOUDY, THEN MOSTLY CLOUDY WITH A 20 PERCENT
CHANCE OF SHOWERS IN THE EVENING. HIGHS 70-74.

$$

GRASS LAKE/MT HEBRON SUMMIT-
LOCATION...CALIFORNIA HIGHWAY 97 NEAR MILEPOST 20
217 PM PDT THU SEP 4 2025

.TONIGHT...PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLEAR. LOWS AROUND 48.
.FRIDAY...SUNNY. HIGHS 81-83.
.FRIDAY NIGHT...MOSTLY CLEAR. LOWS 45-46.
.SATURDAY AND SATURDAY NIGHT...MOSTLY CLEAR. HIGHS 76-79. LOWS
43-46.
.SUNDAY...PARTLY CLOUDY, THEN MOSTLY CLOUDY WITH A 20 PERCENT
CHANCE OF SHOWERS IN THE EVENING. HIGHS 72-73.

$$

WARNER MOUNTAIN SUMMIT-
LOCATION...OREGON HIGHWAY 140 NEAR MILEPOST 4
217 PM PDT THU SEP 4 2025

.TONIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT.
LOWS AROUND 55.
.FRIDAY...SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A
20 PERCENT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND
80.
.FRIDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS. LOWS 52-53.
.SATURDAY...MOSTLY CLOUDY IN THE MORNING THEN BECOMING PARTLY
CLOUDY. A 20 PERCENT CHANCE OF SHOWERS. HIGHS 75-78.
.SATURDAY NIGHT...PARTLY CLOUDY. LOWS AROUND 50.
.SUNDAY...PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY. HIGHS 70-73.

$$

CEDAR PASS-
LOCATION...CALIFORNIA HIGHWAY 299 NEAR MILEPOST 51
217 PM PDT THU SEP 4 2025

.TONIGHT...PARTLY CLOUDY UNTIL WELL AFTER MIDNIGHT THEN CLEARING.
A 20 PERCENT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS 54-55.
.FRIDAY...SUNNY IN THE MORNING, THEN MOSTLY CLOUDY WITH A
20 PERCENT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 75-78.
.FRIDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT.
LOWS 51-52.
.SATURDAY...PARTLY CLOUDY IN THE MORNING THEN BECOMING SUNNY.
HIGHS 70-73.
.SATURDAY NIGHT...MOSTLY CLEAR. LOWS AROUND 50.
.SUNDAY...SUNNY THEN BECOMING PARTLY CLOUDY IN THE AFTERNOON THEN
BECOMING MOSTLY CLOUDY. HIGHS 65-68.

$$

VISIT US AT WWW.WEATHER.GOV/MEDFORD