164
FNUS56 KPDT 251323
FWFPDT
FIRE WEATHER PLANNING FORECAST FOR NE OREGON AND SE WASHINGTON
NATIONAL WEATHER SERVICE PENDLETON OR
623 AM PDT FRI SEP 25 2026
DISCUSSION
COLD FRONT AND LOW PRESSURE SYSTEM WILL BRING
RAIN SHOWERS ACROSS THE AREA THROUGH THIS MORNING, WITH PERSISTENT
SHOWERS ACROSS THE CASCADES THROUGH THIS EVENING. BREEZY WESTERLY
WINDS WILL IMPACT THE REGION THROUGH THIS EVENING, WITH A RETURN
OF LIGHT WINDS TOMORROW. DRY CONDITIONS, LIGHT WINDS, AND BELOW
NORMAL TEMPERATURES WILL PREVAIL INTO EARLY NEXT WEEK.
***WINDS ARE 20 FOOT 10 MINUTE AVERAGES ***
***CWR: CHANCE OF WETTING RAIN 0.10 OR GREATER ***
***VENTILATION INDEX IS DERIVED FROM TRANSPORT WIND
MULTIPLIED BY THE MIXING HEIGHT IN 100'S OF FT.
CATEGORIES ARE A GENERALIZED INDICATOR AND USERS
ARE ENCOURAGE TO DEVELOP CRITERIA THAT ARE
SUITABLE AND REPRESENTATIVE OF DISPERSION
CONDITIONS IN THEIR LOCAL AREA OF INTEREST.
CATEGORIES: LOW (< 200), MODERATE (200-500),
HIGH (500-700), AND VERY HIGH (> 700).
-NOTE: MAX TRANSPORT WINDS MAY NOT OCCUR
AT THE SAME TIME AS MAX MIXING HEIGHT. ***
WAZ695-252315-
EAST WASHINGTON SOUTH CENTRAL CASCADE MOUNTAINS-
623 AM PDT FRI SEP 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
MORNING, THEN SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.....51-58...EXCEPT 45-51 RIDGES.
* MIN HUMIDITY........67-82 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 7 TO 13 MPH. GUSTS TO 35 MPH
IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 7 TO 13 MPH.
* CWR.................60 PERCENT.
* CHC OF LIGHTNING....20 PERCENT (SLIGHT CHANCE).
* MIXING HEIGHT.......4500 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 15 MPH INCREASING TO WEST AROUND
25 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW TO MODERATE (128-260) INCREASING TO
MODERATE TO HIGH (407-679) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING.
* MIN TEMPERATURE.....32-39.
* MAX HUMIDITY........79-94 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 6 TO 12 MPH. GUSTS TO 30 MPH IN
THE EVENING.
* RIDGES/UPR SLOPES....WEST WINDS 6 TO 12 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST 20 TO 25 MPH.
* VENTILATION INDEX...MODERATE (378-488) DECREASING TO LOW TO
MODERATE (88-204) AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....53-59...EXCEPT 46-52 RIDGES.
* MIN HUMIDITY........36-48 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 1 TO 5 MPH IN THE MORNING
BECOMING UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 2 TO 7 MPH IN THE MORNING
BECOMING LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (71-131) INCREASING TO LOW TO MODERATE
(193-267) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
PARTLY CLOUDY. LOWS 33 TO 39. HIGHS 52 TO 63. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS 35 TO 40. HIGHS 51 TO 62. WEST
WINDS UP TO 5 MPH.
TUESDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 38 TO 44.
HIGHS 48 TO 61. WEST WINDS 2 TO 7 MPH.
WEDNESDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS 39 TO
45. HIGHS 50 TO 61. WEST WINDS 2 TO 7 MPH.
THURSDAY
A SLIGHT CHANCE OF SHOWERS. PARTLY CLOUDY. LOWS 37 TO
43. HIGHS 48 TO 60. WEST WINDS 1 TO 6 MPH.
WAZ690-252315-
KITTITAS VALLEY-
623 AM PDT FRI SEP 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS.
* MAX TEMPERATURE.....58-65...EXCEPT 51-60 RIDGES.
* MIN HUMIDITY........52-67 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 10 TO 16 MPH WITH GUSTS UP
TO 30 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 12 TO 18 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH INCREASING TO AROUND
25 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW TO MODERATE (139-259) INCREASING TO HIGH
TO VERY HIGH (683-1005) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....38-43.
* MAX HUMIDITY........71-86 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 6 TO 12 MPH. GUSTS TO 30 MPH IN
THE EVENING.
* RIDGES/UPR SLOPES....WEST WINDS 6 TO 12 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST 15 TO 20 MPH.
* VENTILATION INDEX...MODERATE (236-356) DECREASING TO LOW (42-76)
AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....58-64...EXCEPT 49-58 RIDGES.
* MIN HUMIDITY........32-41 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 1 TO 6 MPH IN THE MORNING
BECOMING UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 1 TO 6 MPH IN THE MORNING
BECOMING LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (51-107) INCREASING TO LOW TO MODERATE
(179-277) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
PARTLY CLOUDY. LOWS 38 TO 44. HIGHS 59 TO 66. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS 40 TO 45. HIGHS 62 TO 69. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS 43 TO 48. HIGHS 61 TO 69. WEST
WINDS 1 TO 6 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 44 TO 49. HIGHS 61 TO 68. WEST
WINDS 1 TO 6 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 42 TO 47. HIGHS 59 TO 67.
NORTHWEST WINDS 1 TO 6 MPH.
WAZ694-252315-
YAKAMA ALPINE DISTRICT-
623 AM PDT FRI SEP 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS IN THE MORNING, THEN A
CHANCE OF SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.....52-59...EXCEPT 45-53 RIDGES.
* MIN HUMIDITY........67-82 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 10 TO 16 MPH WITH GUSTS UP
TO 40 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 10 TO 16 MPH.
* CWR.................40 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......4500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH INCREASING TO WEST
AROUND 30 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW TO MODERATE (173-309) INCREASING TO HIGH
TO VERY HIGH (536-882) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY. A
SLIGHT CHANCE OF SHOWERS IN THE EVENING.
* MIN TEMPERATURE.....33-39.
* MAX HUMIDITY........82-97 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 6 TO 12 MPH. GUSTS TO 40 MPH IN
THE EVENING.
* RIDGES/UPR SLOPES....WEST WINDS 6 TO 12 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST 15 TO 20 MPH.
* VENTILATION INDEX...MODERATE (206-382) DECREASING TO LOW (26-96)
AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....56-62...EXCEPT 47-56 RIDGES.
* MIN HUMIDITY........36-45 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 1 TO 5 MPH IN THE MORNING
BECOMING LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......5000 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH SHIFTING TO THE EAST
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (27-53) INCREASING TO LOW TO MODERATE
(172-224) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
PARTLY CLOUDY. LOWS 35 TO 41. HIGHS 54 TO 65. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS 35 TO 42. HIGHS 55 TO 67. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
38 TO 45. HIGHS 54 TO 66. WEST WINDS 2 TO 7 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
40 TO 46. HIGHS 55 TO 66. WEST WINDS 2 TO 7 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 38 TO 45. HIGHS 53 TO 65. WEST
WINDS 1 TO 6 MPH.
ORZ691-WAZ691-252315-
LOWER COLUMBIA BASIN OF OREGON-LOWER COLUMBIA BASIN OF WASHINGTON-
623 AM PDT FRI SEP 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS IN THE MORNING. PATCHY BLOWING DUST.
* MAX TEMPERATURE.....61-71...EXCEPT 56-66 RIDGES.
* MIN HUMIDITY........42-57 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...BREEZY. SOUTHWEST WINDS 11 TO 17 MPH WITH
GUSTS UP TO 35 MPH INCREASING TO 17 TO 27 MPH WITH GUSTS UP
TO 45 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 13 TO 19 MPH INCREASING TO
16 TO 26 MPH IN THE AFTERNOON.
* CWR.................20 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH INCREASING TO AROUND
35 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW TO MODERATE (132-344) INCREASING TO VERY
HIGH (993-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. PATCHY BLOWING DUST IN THE
EVENING.
* MIN TEMPERATURE.....39-45.
* MAX HUMIDITY........78-93 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 10 TO 16 MPH WITH GUSTS UP TO 35
MPH BECOMING SOUTHWEST 4 TO 10 MPH AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....WEST WINDS 11 TO 17 MPH DECREASING TO 5 TO
11 MPH AFTER MIDNIGHT.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 20 MPH BECOMING SOUTHWEST AROUND
10 MPH AFTER MIDNIGHT.
* VENTILATION INDEX...MODERATE (298-440) DECREASING TO LOW (36-58)
AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....61-68...EXCEPT 56-63 RIDGES.
* MIN HUMIDITY........28-36 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 1 TO 6 MPH IN THE MORNING
BECOMING UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 2 TO 7 MPH IN THE MORNING
BECOMING LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 5 MPH.
* VENTILATION INDEX...LOW (37-87) INCREASING TO LOW TO MODERATE
(95-223) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
PARTLY CLOUDY. LOWS 40 TO 45. HIGHS 62 TO 70. NORTHEAST
WINDS UP TO 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS 41 TO 46. HIGHS 66 TO 72. SOUTHWEST
WINDS UP TO 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 44 TO 49. HIGHS 67 TO 73.
SOUTHWEST WINDS 4 TO 9 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 46 TO 51. HIGHS 66 TO 72.
SOUTHWEST WINDS 3 TO 8 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 44 TO 49. HIGHS 64 TO 71. WEST
WINDS 2 TO 7 MPH.
ORZ692-WAZ692-252315-
NORTHERN BLUE MOUNTAINS OF OREGON-BLUE MOUNTAINS OF WASHINGTON-
623 AM PDT FRI SEP 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS IN THE MORNING. A
CHANCE OF SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.....57-66...EXCEPT 51-56 RIDGES.
* MIN HUMIDITY........49-64 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 4 TO 9 MPH INCREASING TO 9
TO 15 MPH WITH GUSTS UP TO 30 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....WEST WINDS 3 TO 8 MPH SHIFTING TO THE
SOUTHWEST 8 TO 14 MPH IN THE AFTERNOON.
* CWR.................20 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 MPH INCREASING TO SOUTHWEST
AROUND 25 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (71-149) INCREASING TO VERY HIGH
(926-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....34-42.
* MAX HUMIDITY........77-92 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 6 TO 12 MPH. GUSTS TO 30 MPH
IN THE EVENING.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 6 TO 12 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 25 MPH DECREASING TO AROUND 15
MPH AFTER MIDNIGHT.
* VENTILATION INDEX...MODERATE TO HIGH (406-598) DECREASING TO LOW
(58-152) AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....56-64...EXCEPT 50-55 RIDGES.
* MIN HUMIDITY........26-41 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS UP TO 5 MPH IN THE MORNING
BECOMING UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 1 TO 6 MPH IN THE MORNING
BECOMING LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (72-120) INCREASING TO LOW TO MODERATE
(194-280) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
MOSTLY CLOUDY. LOWS 35 TO 42. HIGHS 55 TO 64. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS 35 TO 42. HIGHS 56 TO 66. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 38 TO 46. HIGHS 58 TO 68.
SOUTHWEST WINDS 1 TO 6 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 41 TO 48. HIGHS 58 TO 68.
SOUTHWEST WINDS 1 TO 6 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 39 TO 46. HIGHS 57 TO 67. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
ORZ693-WAZ693-252315-
CANYON GRASSLANDS OF WALLOWA COUNTY-
SOUTHEAST WASHINGTON GRANDE RONDE VALLEY-
623 AM PDT FRI SEP 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
MORNING. A SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.....59-69.
* MIN HUMIDITY........41-53 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 5 TO 11 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 5 TO 11 MPH.
* CWR.................20 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 MPH INCREASING TO AROUND 20
MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (86-132) INCREASING TO HIGH TO VERY HIGH
(617-919) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....33-41.
* MAX HUMIDITY........75-90 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT...EXCEPT GOOD RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 5 TO 11 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 5 TO 11 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST 15 TO 20 MPH.
* VENTILATION INDEX...MODERATE TO HIGH (339-571) DECREASING TO LOW
(59-117) AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....57-65...EXCEPT 51-58 RIDGES.
* MIN HUMIDITY........23-30 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 5 MPH.
* VENTILATION INDEX...LOW (43-95) INCREASING TO MODERATE (223-311)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
MOSTLY CLOUDY. LOWS 34 TO 41. HIGHS 59 TO 68. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS 35 TO 43. HIGHS 60 TO 69. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 36 TO 45. HIGHS 61 TO 70.
SOUTHWEST WINDS UP TO 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 39 TO 47. HIGHS 62 TO 71. WEST
WINDS 2 TO 7 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 37 TO 46. HIGHS 61 TO 71. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
ORZ701-252315-
EASTERN COLUMBIA RIVER GORGE OF OREGON-
623 AM PDT FRI SEP 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS. PATCHY
BLOWING DUST IN THE AFTERNOON.
* MAX TEMPERATURE.....58-64.
* MIN HUMIDITY........64-79 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 10 TO 16 MPH WITH GUSTS UP
TO 40 MPH...EXCEPT WEST 10 TO 16 MPH WITH GUSTS UP TO 40 MPH
IN THE EASTERN COLUMBIA RIVER GORGE.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 9 TO 15 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......5000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH INCREASING TO WEST
AROUND 30 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW TO MODERATE (125-323) INCREASING TO VERY
HIGH (892-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE EVENING.
* MIN TEMPERATURE.....37-43.
* MAX HUMIDITY........85-100 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 4 TO 9 MPH. IN THE EASTERN
COLUMBIA RIVER GORGE, GUSTS TO 30 MPH IN THE EVENING.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 4 TO 9 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST 10 TO 15 MPH.
* VENTILATION INDEX...MODERATE (215-291) DECREASING TO LOW (30-48)
AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....61-66.
* MIN HUMIDITY........33-47 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......4000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 5 MPH SHIFTING TO THE NORTHEAST
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (32-54) INCREASING TO LOW (125-177) IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
MOSTLY CLOUDY. LOWS 40 TO 45. HIGHS 64 TO 69. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS 40 TO 45. HIGHS 66 TO 71. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 43 TO 48. HIGHS 65 TO 70. WEST
WINDS 2 TO 7 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 44 TO 49. HIGHS 66 TO 71. WEST
WINDS 2 TO 7 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 42 TO 47. HIGHS 64 TO 69. WEST
WINDS 1 TO 6 MPH.
ORZ702-252315-
EAST SLOPES OF THE MT. HOOD NATIONAL FOREST-
623 AM PDT FRI SEP 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY.
* MAX TEMPERATURE.....51-60...EXCEPT 47-55 RIDGES.
* MIN HUMIDITY........68-83 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 7 TO 13 MPH WITH GUSTS UP TO
40 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 6 TO 12 MPH.
* CWR.................40 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......4500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 25 MPH INCREASING TO WEST
AROUND 35 MPH IN THE AFTERNOON.
* VENTILATION INDEX...MODERATE (260-374) INCREASING TO VERY HIGH
(723-973) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS IN THE EVENING.
* MIN TEMPERATURE.....32-39.
* MAX HUMIDITY........81-96 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 1 TO 6 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 2 TO 7 MPH IN THE EVENING
BECOMING LIGHT WINDS LESS THAN 5 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 20 MPH DECREASING TO AROUND 10
MPH AFTER MIDNIGHT.
* VENTILATION INDEX...MODERATE (238-294) DECREASING TO LOW (36-60)
AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....57-63...EXCEPT 52-58 RIDGES.
* MIN HUMIDITY........35-48 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......4500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH SHIFTING TO THE
NORTHEAST IN THE AFTERNOON.
* VENTILATION INDEX...LOW (27-43) INCREASING TO LOW TO MODERATE
(164-204) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
MOSTLY CLOUDY. LOWS 35 TO 42. HIGHS 54 TO 65. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS 36 TO 42. HIGHS 56 TO 69. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 39 TO 44. HIGHS 55 TO 69. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
41 TO 46. HIGHS 56 TO 68. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
THURSDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS
39 TO 45. HIGHS 53 TO 66. TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
ORZ695-252315-
EAGLE CAP WILDERNESS-
623 AM PDT FRI SEP 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS IN THE MORNING. A SLIGHT CHANCE OF SHOWERS IN
THE AFTERNOON.
* MAX TEMPERATURE.....57-70...EXCEPT 51-61 RIDGES.
* MIN HUMIDITY........41-56 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 5 TO 11 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS 5 TO 11 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.
* VENTILATION INDEX...LOW TO MODERATE (93-201) INCREASING TO VERY
HIGH (830-996) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....33-39...EXCEPT 27-34 RIDGES.
* MAX HUMIDITY........71-86 PERCENT.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 3 TO 8 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 3 TO 8 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
* VENTILATION INDEX...MODERATE (224-406) DECREASING TO LOW (28-108)
AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE.....54-64...EXCEPT 44-54 RIDGES.
* MIN HUMIDITY........23-33 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 5 MPH.
* VENTILATION INDEX...LOW (32-58) INCREASING TO MODERATE (218-298)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
MOSTLY CLOUDY. LOWS 32 TO 40. HIGHS 52 TO 66. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS 32 TO 40. HIGHS 51 TO 66. NORTH
WINDS 1 TO 6 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 33 TO 42. HIGHS 52 TO 66. WEST
WINDS 1 TO 6 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 36 TO 44. HIGHS 53 TO 67. WEST
WINDS 1 TO 5 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 35 TO 43. HIGHS 52 TO 66. WEST
WINDS 1 TO 6 MPH.
ORZ694-252315-
GRANDE RONDE VALLEY OF OREGON-
623 AM PDT FRI SEP 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS.
* MAX TEMPERATURE.....64-69.
* MIN HUMIDITY........38-49 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 6 TO 12 MPH. GUSTS TO 25 MPH IN
THE AFTERNOON.
* RIDGES/UPR SLOPES....WEST WINDS 6 TO 12 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 10 MPH INCREASING TO SOUTHWEST
AROUND 20 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (64-106) INCREASING TO VERY HIGH
(788-962) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....31-38.
* MAX HUMIDITY........88-100 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH WINDS 4 TO 9 MPH.
* RIDGES/UPR SLOPES....NORTH WINDS 4 TO 9 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
* VENTILATION INDEX...MODERATE (263-351) DECREASING TO LOW (31-49)
AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE.....61-66.
* MIN HUMIDITY........20-25 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......5000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 5 MPH.
* VENTILATION INDEX...LOW (34-56) INCREASING TO LOW TO MODERATE
(125-223) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
MOSTLY CLOUDY. LOWS 32 TO 39. HIGHS 64 TO 69. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS 32 TO 38. HIGHS 65 TO 70. NORTHWEST
WINDS 2 TO 7 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 34 TO 40. HIGHS 67 TO 72.
SOUTHWEST WINDS 1 TO 6 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 37 TO 43. HIGHS 67 TO 72.
NORTHWEST WINDS 1 TO 5 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 36 TO 42. HIGHS 66 TO 71.
NORTHWEST WINDS 1 TO 6 MPH.
ORZ699-252315-
WESTERN FORESTED BLUE MOUNTAINS-
623 AM PDT FRI SEP 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS IN THE MORNING.
* MAX TEMPERATURE.....56-63...EXCEPT 51-57 RIDGES.
* MIN HUMIDITY........37-52 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 6 TO 12 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 6 TO 12 MPH.
* CWR.................20 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH INCREASING TO WEST
AROUND 25 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW (101-195) INCREASING TO VERY HIGH
(1041-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....31-37.
* MAX HUMIDITY........78-93 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 4 TO 9 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 3 TO 8 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 20 MPH DECREASING TO AROUND 10
MPH AFTER MIDNIGHT.
* VENTILATION INDEX...MODERATE (319-431) DECREASING TO LOW (38-82)
AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE.....57-63...EXCEPT 51-57 RIDGES.
* MIN HUMIDITY........21-31 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 5 MPH.
* VENTILATION INDEX...LOW (33-59) INCREASING TO LOW TO MODERATE
(166-332) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
MOSTLY CLOUDY. LOWS 34 TO 39. HIGHS 54 TO 64. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS 33 TO 38. HIGHS 56 TO 65. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 35 TO 41. HIGHS 58 TO 67. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 38 TO 44. HIGHS 59 TO 68.
TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 37 TO 43. HIGHS 57 TO 66. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
ORZ696-252315-
JOHN DAY VALLEY-
623 AM PDT FRI SEP 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
SHOWERS LIKELY IN THE MORNING.
* MAX TEMPERATURE.....58-66...EXCEPT 54-59 RIDGES.
* MIN HUMIDITY........35-45 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 9 TO 15 MPH WITH GUSTS UP TO 30
MPH.
* RIDGES/UPR SLOPES....WEST WINDS 9 TO 15 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH INCREASING TO WEST
AROUND 30 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW TO MODERATE (154-294) INCREASING TO VERY
HIGH (1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....34-40.
* MAX HUMIDITY........75-90 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 4 TO 9 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 4 TO 9 MPH IN THE EVENING
BECOMING LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 15 MPH DECREASING TO AROUND 5 MPH
AFTER MIDNIGHT.
* VENTILATION INDEX...MODERATE (296-368) DECREASING TO LOW (25-37)
AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE.....59-67...EXCEPT 54-59 RIDGES.
* MIN HUMIDITY........20-25 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* VENTILATION INDEX...LOW (25-33) INCREASING TO LOW TO MODERATE
(102-240) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
MOSTLY CLOUDY. LOWS 37 TO 42. HIGHS 59 TO 68. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS 36 TO 41. HIGHS 61 TO 69. NORTHWEST
WINDS UP TO 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 38 TO 44. HIGHS 63 TO 72.
SOUTHWEST WINDS UP TO 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 40 TO 46. HIGHS 64 TO 72.
TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 40 TO 45. HIGHS 62 TO 71. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
ORZ700-252315-
CENTRAL MOUNTAINS OF OREGON-
623 AM PDT FRI SEP 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS IN THE MORNING.
* MAX TEMPERATURE.....55-61...EXCEPT 50-55 RIDGES.
* MIN HUMIDITY........38-53 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 10 TO 17 MPH WITH GUSTS UP TO 35
MPH.
* RIDGES/UPR SLOPES....WEST WINDS 9 TO 15 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH.
* VENTILATION INDEX...MODERATE (321-405) INCREASING TO VERY HIGH
(1039-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* MIN TEMPERATURE.....28-37.
* MAX HUMIDITY........85-100 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 3 TO 8 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 2 TO 7 MPH IN THE EVENING
BECOMING LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 15 MPH BECOMING NORTHWEST AROUND
5 MPH AFTER MIDNIGHT.
* VENTILATION INDEX...MODERATE (234-326) DECREASING TO LOW (25-34)
AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE.....60-65...EXCEPT 53-58 RIDGES.
* MIN HUMIDITY........20-30 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....EAST AROUND 5 MPH.
* VENTILATION INDEX...LOW (25-31) INCREASING TO LOW TO MODERATE
(186-282) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
MOSTLY CLOUDY. LOWS 32 TO 40. HIGHS 59 TO 65. NORTH
WINDS 1 TO 6 MPH.
MONDAY
MOSTLY CLEAR. LOWS 31 TO 39. HIGHS 62 TO 68. NORTHWEST
WINDS 1 TO 6 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 33 TO 42. HIGHS 65 TO 71.
SOUTHWEST WINDS 1 TO 6 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 35 TO 44. HIGHS 65 TO 71. WEST
WINDS 1 TO 6 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 34 TO 43. HIGHS 62 TO 68. WEST
WINDS UP TO 5 MPH.
ORZ703-252315-
WARM SPRINGS RESERVATION-
623 AM PDT FRI SEP 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS. PATCHY
BLOWING DUST IN THE AFTERNOON.
* MAX TEMPERATURE.....54-63...EXCEPT 46-54 RIDGES.
* MIN HUMIDITY........53-68 PERCENT...EXCEPT 72-87 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS 11 TO 17 MPH WITH GUSTS UP
TO 35 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 11 TO 17 MPH.
* CWR.................20 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 25 TO 30 MPH.
* VENTILATION INDEX...MODERATE (311-415) INCREASING TO VERY HIGH
(811-1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING.
* MIN TEMPERATURE.....35-40.
* MAX HUMIDITY........83-96 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 4 TO 9 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 3 TO 8 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 15 MPH DECREASING TO AROUND 5 MPH
AFTER MIDNIGHT.
* VENTILATION INDEX...LOW TO MODERATE (189-277) DECREASING TO LOW
(25-44) AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* MAX TEMPERATURE.....59-66...EXCEPT 50-57 RIDGES.
* MIN HUMIDITY........28-39 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......4500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH SHIFTING TO THE EAST
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (25-30) INCREASING TO LOW TO MODERATE
(170-222) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
MOSTLY CLOUDY. LOWS 37 TO 42. HIGHS 58 TO 66. NORTH
WINDS UP TO 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS 37 TO 42. HIGHS 61 TO 71. WEST WINDS
UP TO 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 40 TO 45. HIGHS 61 TO 73. WEST
WINDS 1 TO 6 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 42 TO 47. HIGHS 62 TO 72. WEST
WINDS 2 TO 7 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 41 TO 46. HIGHS 59 TO 69. WEST
WINDS 1 TO 5 MPH.
ORZ704-252315-
NORTHERN DESCHUTES NATIONAL FOREST-
623 AM PDT FRI SEP 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS.
* MAX TEMPERATURE.....52-57...EXCEPT 43-49 RIDGES.
* MIN HUMIDITY........59-69 PERCENT...EXCEPT 76-91 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 10 TO 16 MPH WITH GUSTS UP TO 40
MPH.
* RIDGES/UPR SLOPES....WEST WINDS 10 TO 16 MPH.
* CWR.................30 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......4500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 30 MPH.
* VENTILATION INDEX...MODERATE (368-456) INCREASING TO HIGH TO VERY
HIGH (666-1016) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING.
* MIN TEMPERATURE.....29-35.
* MAX HUMIDITY........85-100 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 2 TO 7 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 3 TO 8 MPH IN THE EVENING
BECOMING LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 15 MPH DECREASING TO AROUND 5 MPH
AFTER MIDNIGHT.
* VENTILATION INDEX...LOW TO MODERATE (172-216) DECREASING TO LOW
(25-27) AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* MAX TEMPERATURE.....58-63...EXCEPT 50-56 RIDGES.
* MIN HUMIDITY........30-36 PERCENT...EXCEPT 35-47 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......4500 FT AGL.
* TRANSPORT WINDS.....EAST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (25-31) INCREASING TO MODERATE (220-262)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
MOSTLY CLOUDY. LOWS 32 TO 38. HIGHS 54 TO 64. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS 31 TO 37. HIGHS 56 TO 68. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 34 TO 40. HIGHS 57 TO 69. WEST
WINDS UP TO 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 36 TO 43. HIGHS 59 TO 69. WEST
WINDS 1 TO 5 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 36 TO 42. HIGHS 55 TO 66. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
ORZ705-252315-
SOUTHERN DESCHUTES NATIONAL FOREST-
623 AM PDT FRI SEP 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS.
* MAX TEMPERATURE.....50-55...EXCEPT 41-48 RIDGES.
* MIN HUMIDITY........50-65 PERCENT...EXCEPT 62-77 PERCENT RIDGES.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 8 TO 14 MPH WITH GUSTS UP TO 30
MPH.
* RIDGES/UPR SLOPES....WEST WINDS 8 TO 14 MPH.
* CWR.................10 PERCENT.
* CHC OF LIGHTNING....10 PERCENT (VERY LOW CHANCE).
* MIXING HEIGHT.......5000 FT AGL.
* TRANSPORT WINDS.....WEST AROUND 25 MPH.
* VENTILATION INDEX...MODERATE TO HIGH (415-539) INCREASING TO HIGH
TO VERY HIGH (571-967) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* MIN TEMPERATURE.....24-31.
* MAX HUMIDITY........91-100 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS UP TO 5 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 2 TO 7 MPH IN THE EVENING
BECOMING LIGHT WINDS LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* VENTILATION INDEX...LOW TO MODERATE (135-221) DECREASING TO LOW
(25-29) AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE.....58-63...EXCEPT 49-56 RIDGES.
* MIN HUMIDITY........24-37 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....EAST 5 TO 10 MPH.
* VENTILATION INDEX...LOW (27-39) INCREASING TO MODERATE (250-306)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
MOSTLY CLOUDY. LOWS 28 TO 36. HIGHS 55 TO 63. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS 27 TO 35. HIGHS 57 TO 65. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 29 TO 37. HIGHS 59 TO 68. WEST
WINDS UP TO 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 31 TO 39. HIGHS 61 TO 69.
TERRAIN DRIVEN WINDS LESS THAN 5 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 31 TO 39. HIGHS 57 TO 65. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
ORZ697-252315-
CENTRAL BLUE MOUNTAINS-
623 AM PDT FRI SEP 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A
CHANCE OF SHOWERS IN THE MORNING.
* MAX TEMPERATURE.....55-60.
* MIN HUMIDITY........33-42 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 8 TO 14 MPH WITH GUSTS UP TO 30
MPH.
* RIDGES/UPR SLOPES....WEST WINDS 8 TO 14 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH INCREASING TO WEST
AROUND 25 MPH IN THE AFTERNOON.
* VENTILATION INDEX...LOW TO MODERATE (174-272) INCREASING TO VERY
HIGH (1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* MIN TEMPERATURE.....29-35.
* MAX HUMIDITY........78-91 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 3 TO 8 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 3 TO 8 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
* VENTILATION INDEX...MODERATE (310-368) DECREASING TO LOW (32-62)
AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE.....58-63...EXCEPT 53-59 RIDGES.
* MIN HUMIDITY........22-27 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 5 MPH SHIFTING TO THE SOUTHWEST
IN THE AFTERNOON.
* VENTILATION INDEX...LOW (35-47) INCREASING TO MODERATE (285-373)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
MOSTLY CLOUDY. LOWS 34 TO 39. HIGHS 58 TO 64. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS 32 TO 37. HIGHS 58 TO 64. NORTHWEST
WINDS UP TO 5 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 33 TO 39. HIGHS 60 TO 66. WEST
WINDS 1 TO 6 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 35 TO 41. HIGHS 61 TO 68. WEST
WINDS UP TO 5 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 35 TO 41. HIGHS 59 TO 66. WEST
WINDS UP TO 5 MPH.
ORZ698-252315-
SOUTHERN BLUE MOUNTAINS-
623 AM PDT FRI SEP 25 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING MOSTLY SUNNY. A
SLIGHT CHANCE OF SHOWERS IN THE MORNING.
* MAX TEMPERATURE.....57-64.
* MIN HUMIDITY........28-38 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST WINDS 9 TO 15 MPH WITH GUSTS UP TO 30
MPH.
* RIDGES/UPR SLOPES....WEST WINDS 9 TO 15 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....WEST 20 TO 25 MPH.
* VENTILATION INDEX...LOW TO MODERATE (179-317) INCREASING TO VERY
HIGH (1050) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR THEN BECOMING MOSTLY CLOUDY.
* MIN TEMPERATURE.....29-35.
* MAX HUMIDITY........78-93 PERCENT.
* HUMIDITY RECOVERY...EXCELLENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST WINDS 2 TO 7 MPH IN THE EVENING
BECOMING DRAINAGE WINDS LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS 2 TO 7 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
* VENTILATION INDEX...MODERATE (315-357) DECREASING TO LOW (37-49)
AFTER MIDNIGHT.
SATURDAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* MAX TEMPERATURE.....58-63.
* MIN HUMIDITY........21-26 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...UPSLOPE LESS THAN 5 MPH.
* RIDGES/UPR SLOPES....LIGHT LESS THAN 5 MPH.
* CWR.................0 PERCENT.
* CHC OF LIGHTNING....0 PERCENT.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....NORTH AROUND 5 MPH SHIFTING TO THE SOUTH IN
THE AFTERNOON.
* VENTILATION INDEX...LOW (35-47) INCREASING TO MODERATE (266-362)
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
MOSTLY CLOUDY. LOWS 34 TO 40. HIGHS 62 TO 67. TERRAIN
DRIVEN WINDS LESS THAN 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS 32 TO 38. HIGHS 62 TO 68. NORTHWEST
WINDS 2 TO 7 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 33 TO 39. HIGHS 64 TO 70. NORTHWEST
WINDS 1 TO 6 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 35 TO 41. HIGHS 65 TO 70. WEST
WINDS 1 TO 6 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 35 TO 41. HIGHS 63 TO 69. WEST
WINDS 1 TO 6 MPH.
8-14 DAY OUTLOOK FOR FRIDAY OCTOBER 2 THROUGH THURSDAY OCTOBER 8
A GREATER CHANCE OF ABOVE NORMAL TEMPERATURES AND BELOW NORMAL
PRECIPITATION.
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