Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
646
FNUS56 KPDT 262026
FWFPDT
Fire Weather Planning Forecast for NE Oregon and SE Washington
National Weather Service Pendleton OR
126 PM PDT Sat Sep 26 2026
.DISCUSSION...Dry air with relative humidities in the 25-35
percent range prevails over the next couple of days, bringing
elevated fire weather conditions across the board. Winds will be
below criteria, preventing critical conditions occurring although
breezy winds are possible going into Tuesday. Min RH`s will
improve by the time we get into mid-week, as will overall fire
weather conditions when we head into Tuesday/Wednesday.
***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. ***
WAZ695-262315-
East Washington South Central Cascade Mountains-
126 PM PDT Sat Sep 26 2026
.TODAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....53-59...except 46-52 ridges.
* Min humidity........33-45 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 1 to 5 mph.
* Ridges/upr slopes....Northwest winds 2 to 7 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.....Northwest 5 to 10 mph.
* Ventilation Index...Low (64-116) increasing to low to moderate
(116-238) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....33-39.
* Max humidity........57-72 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph becoming east up
to 5 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....East 5 to 10 mph.
* Ventilation Index...Low (30-68) decreasing to low (25-32) after
midnight.
.SUNDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....57-64...except 50-57 ridges.
* Min humidity........30-40 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....East winds up to 5 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......4500 ft agl.
* Transport winds.....East around 5 mph shifting to the southwest
in the afternoon.
* Ventilation Index...Low (39-57) increasing to low (43-119) in the
afternoon.
.Forecast days 3 through 7......
.MONDAY...Mostly clear. Lows 34 to 39. Highs 53 to 65. West winds
up to 5 mph.
.TUESDAY...A chance of showers. Mostly cloudy. Lows 39 to 45.
Highs 51 to 64. West winds 2 to 7 mph.
.WEDNESDAY...Showers likely. Mostly cloudy. Lows 41 to 47. Highs
52 to 63. West winds 2 to 7 mph.
.THURSDAY...Partly cloudy. Lows 39 to 45. Highs 53 to 64. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 39 to 44. Highs 52 to 64. Terrain
driven winds less than 5 mph.
$$
WAZ690-262315-
Kittitas Valley-
126 PM PDT Sat Sep 26 2026
.TODAY...
* Sky/weather.........Mostly sunny then becoming partly cloudy.
* Max temperature.....58-64...except 50-58 ridges.
* Min humidity........31-40 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....West 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 (46-92) increasing to low to moderate
(153-243) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....38-44.
* Max humidity........55-70 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....Northeast around 5 mph.
* Ventilation Index...Low (33-61) decreasing to low (25-28) after
midnight.
.SUNDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....60-66...except 53-60 ridges.
* Min humidity........31-39 percent.
* 20-foot winds.......
* Valleys/lwr slopes...North winds up to 5 mph in the morning
becoming 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.....Northeast 5 to 10 mph.
* Ventilation Index...Low (41-71) increasing to low to moderate
(115-237) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Mostly clear. Lows 39 to 44. Highs 64 to 71. Terrain
driven winds less than 5 mph.
.TUESDAY...Partly cloudy. Lows 44 to 49. Highs 65 to 72. West
winds 1 to 6 mph.
.WEDNESDAY...Partly cloudy. Lows 47 to 52. Highs 63 to 71.
Northwest winds 1 to 6 mph.
.THURSDAY...Partly cloudy. Lows 45 to 50. Highs 63 to 70. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 44 to 49. Highs 62 to 70. Terrain
driven winds less than 5 mph.
$$
WAZ694-262315-
Yakama Alpine District-
126 PM PDT Sat Sep 26 2026
.TODAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....56-63...except 48-57 ridges.
* Min humidity........34-41 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....Northwest winds up to 5 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.....Northwest around 5 mph shifting to the
southeast in the afternoon.
* Ventilation Index...Low (25-47) increasing to low to moderate
(131-209) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....35-42.
* Max humidity........50-62 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph becoming
north 1 to 5 mph after midnight.
* Ridges/upr slopes....light winds less than 5 mph becoming
northeast 1 to 6 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....Northeast 5 to 10 mph.
* Ventilation Index...Low (58-92) decreasing to low (28-40) after
midnight.
.SUNDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....60-67...except 52-61 ridges.
* Min humidity........30-37 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northeast winds 1 to 5 mph.
* Ridges/upr slopes....Northeast winds 1 to 6 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......4500 ft agl.
* Transport winds.....Northeast 5 to 10 mph.
* Ventilation Index...Low (44-74) increasing to low (83-175) in the
afternoon.
.Forecast days 3 through 7......
.MONDAY...Mostly clear. Lows 35 to 41. Highs 58 to 69. Terrain
driven winds less than 5 mph.
.TUESDAY...Partly cloudy. Lows 39 to 46. Highs 57 to 69. West
winds 2 to 7 mph.
.WEDNESDAY...A slight chance of showers. Partly cloudy. Lows
42 to 48. Highs 57 to 69. West winds 2 to 7 mph.
.THURSDAY...Partly cloudy. Lows 40 to 47. Highs 57 to 69. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 39 to 46. Highs 57 to 68. Terrain
driven winds less than 5 mph.
$$
ORZ691-WAZ691-262315-
Lower Columbia Basin of Oregon-Lower Columbia Basin of Washington-
126 PM PDT Sat Sep 26 2026
.TODAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....61-67...except 56-63 ridges.
* Min humidity........29-37 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 1 to 6 mph shifting to the
north 2 to 7 mph in the afternoon.
* Ridges/upr slopes....Southwest winds 1 to 6 mph shifting to the
northeast 1 to 5 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......6000 ft agl.
* Transport winds.....Southwest around 5 mph shifting to the north
in the afternoon.
* Ventilation Index...Low (34-78) increasing to low (80-192) in the
afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....40-45.
* Max humidity........52-67 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Northeast winds 1 to 6 mph.
* Ridges/upr slopes....Northeast winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....Northeast around 10 mph.
* Ventilation Index...Low (58-128) decreasing to low (25-38) after
midnight.
.SUNDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....62-70...except 59-65 ridges.
* Min humidity........24-35 percent.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 1 to 6 mph.
* Ridges/upr slopes....North winds 1 to 6 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......5000 ft agl.
* Transport winds.....North around 5 mph.
* Ventilation Index...Low (28-62) increasing to low to moderate
(139-269) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Mostly clear. Lows 39 to 44. Highs 67 to 73. Southwest
winds 1 to 5 mph.
.TUESDAY...Partly cloudy. Lows 45 to 50. Highs 71 to 77.
Southwest winds 4 to 9 mph.
.WEDNESDAY...Partly cloudy. Lows 48 to 53. Highs 69 to 75.
Southwest winds 4 to 10 mph.
.THURSDAY...Partly cloudy. Lows 46 to 51. Highs 68 to 74. West
winds 1 to 5 mph.
.FRIDAY...Partly cloudy. Lows 46 to 51. Highs 66 to 72. West
winds 1 to 5 mph.
$$
ORZ692-WAZ692-262315-
Northern Blue Mountains of Oregon-Blue Mountains of Washington-
126 PM PDT Sat Sep 26 2026
.TODAY...
* Sky/weather.........Mostly cloudy then becoming mostly sunny.
* Max temperature.....54-62...except 49-54 ridges.
* Min humidity........28-43 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....West 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 (67-105) increasing to low to moderate
(126-228) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....35-42.
* Max humidity........54-66 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....East around 10 mph.
* Ventilation Index...Low (55-81) decreasing to low (27-41) after
midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....57-65...except 53-59 ridges.
* Min humidity........31-42 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.....Southeast around 5 mph shifting to the
northwest in the afternoon.
* Ventilation Index...Low (25-32) increasing to low (70-110) in the
afternoon.
.Forecast days 3 through 7......
.MONDAY...Mostly clear. Lows 35 to 43. Highs 58 to 68. Terrain
driven winds less than 5 mph.
.TUESDAY...Mostly clear. Lows 38 to 46. Highs 63 to 73. Southwest
winds 1 to 6 mph.
.WEDNESDAY...Partly cloudy. Lows 43 to 51. Highs 60 to 70.
Southwest winds 2 to 7 mph.
.THURSDAY...Mostly clear. Lows 41 to 48. Highs 62 to 71. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 41 to 48. Highs 59 to 68. Terrain
driven winds less than 5 mph.
$$
ORZ693-WAZ693-262315-
Canyon Grasslands of Wallowa County-
Southeast Washington Grande Ronde Valley-
126 PM PDT Sat Sep 26 2026
.TODAY...
* Sky/weather.........Mostly cloudy then becoming mostly sunny.
* Max temperature.....55-64...except 50-57 ridges.
* Min humidity........25-35 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 (40-86) increasing to low to moderate
(192-248) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....33-41.
* Max humidity........59-74 percent.
* Humidity recovery...Good...except Moderate ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....Northeast 5 to 10 mph.
* Ventilation Index...Low (63-91) decreasing to low (25-26) after
midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....61-69...except 55-62 ridges.
* Min humidity........28-36 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.....Southeast around 5 mph shifting to the
northwest in the afternoon.
* Ventilation Index...Low (25) increasing to low (46-158) in the
afternoon.
.Forecast days 3 through 7......
.MONDAY...Partly cloudy. Lows 36 to 43. Highs 61 to 71. Terrain
driven winds less than 5 mph.
.TUESDAY...Mostly clear. Lows 36 to 44. Highs 65 to 75. Southwest
winds 1 to 6 mph.
.WEDNESDAY...Partly cloudy. Lows 42 to 50. Highs 64 to 73.
Southwest winds 2 to 7 mph.
.THURSDAY...Mostly clear. Lows 39 to 48. Highs 66 to 75. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 40 to 48. Highs 63 to 71. Terrain
driven winds less than 5 mph.
$$
ORZ701-262315-
Eastern Columbia River Gorge of Oregon-
126 PM PDT Sat Sep 26 2026
.TODAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....61-66.
* Min humidity........33-43 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph. In the eastern
Columbia River Gorge, west winds 1 to 5 mph in the morning
becoming 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.....West around 5 mph shifting to the east in the
afternoon.
* Ventilation Index...Low (32-56) increasing to low (117-159) in
the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....40-45.
* Max humidity........53-68 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....East 5 to 10 mph.
* Ventilation Index...Low (77-109) decreasing to low (25-33) after
midnight.
.SUNDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....64-69.
* Min humidity........29-36 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.....East around 5 mph.
* Ventilation Index...Low (27-51) increasing to low to moderate
(168-214) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Mostly clear. Lows 39 to 44. Highs 68 to 73. West winds
up to 5 mph.
.TUESDAY...Partly cloudy. Lows 43 to 48. Highs 69 to 74. West
winds 2 to 7 mph.
.WEDNESDAY...Partly cloudy with a slight chance of showers. Lows
46 to 51. Highs 68 to 73. West winds 2 to 7 mph.
.THURSDAY...Partly cloudy. Lows 45 to 50. Highs 68 to 73. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 43 to 48. Highs 67 to 72. West
winds up to 5 mph.
$$
ORZ702-262315-
East Slopes of the Mt. Hood National Forest-
126 PM PDT Sat Sep 26 2026
.TODAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....56-63...except 51-58 ridges.
* Min humidity........33-44 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 east
in the afternoon.
* Ventilation Index...Low (25-41) increasing to low (138-166) in
the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....35-42.
* Max humidity........48-55 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....East around 10 mph.
* Ventilation Index...Low (89-109) decreasing to low (34-52) after
midnight.
.SUNDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....60-65...except 55-62 ridges.
* Min humidity........30-38 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.....East 5 to 10 mph.
* Ventilation Index...Low (54-74) increasing to low (120-182) in
the afternoon.
.Forecast days 3 through 7......
.MONDAY...Mostly clear. Lows 36 to 42. Highs 58 to 70. Terrain
driven winds less than 5 mph.
.TUESDAY...Partly cloudy. Lows 39 to 45. Highs 59 to 73. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Partly cloudy with a slight chance of showers. Lows
43 to 49. Highs 59 to 71. Terrain driven winds less than 5 mph.
.THURSDAY...Partly cloudy. Lows 42 to 48. Highs 59 to 70. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 40 to 46. Highs 57 to 69. Terrain
driven winds less than 5 mph.
$$
ORZ695-262315-
Eagle Cap Wilderness-
126 PM PDT Sat Sep 26 2026
.TODAY...
* Sky/weather.........Mostly cloudy then becoming mostly sunny.
* Max temperature.....53-63...except 43-53 ridges.
* Min humidity........25-37 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.......5500 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Low (30-58) increasing to low to moderate
(172-242) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....36-41...except 30-36 ridges.
* Max humidity........49-62 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....Northeast winds 1 to 5 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.....Northeast around 5 mph.
* Ventilation Index...Low (36-70) decreasing to low (25-27) after
midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....58-68...except 50-59 ridges.
* Min humidity........31-40 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....South winds 1 to 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......5500 ft agl.
* Transport winds.....South 5 to 10 mph.
* Ventilation Index...Low (25-40) increasing to low to moderate
(147-415) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Partly cloudy. Lows 34 to 42. Highs 54 to 68. North
winds 1 to 6 mph.
.TUESDAY...Mostly clear. Lows 33 to 42. Highs 57 to 71. West
winds 1 to 6 mph.
.WEDNESDAY...Mostly clear. Lows 39 to 47. Highs 56 to 70. West
winds 1 to 5 mph.
.THURSDAY...Mostly clear. Lows 38 to 46. Highs 58 to 71.
Southwest winds 1 to 6 mph.
.FRIDAY...Partly cloudy. Lows 39 to 46. Highs 55 to 69. Terrain
driven winds less than 5 mph.
$$
ORZ694-262315-
Grande Ronde Valley of Oregon-
126 PM PDT Sat Sep 26 2026
.TODAY...
* Sky/weather.........Mostly cloudy then becoming mostly sunny.
* Max temperature.....60-65.
* Min humidity........23-28 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.....Northwest around 5 mph.
* Ventilation Index...Low (34-56) increasing to low (112-152) in
the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....32-38.
* Max humidity........60-73 percent.
* Humidity recovery...Good...except Moderate ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....North around 5 mph.
* Ventilation Index...Low (43-69) decreasing to low (25-29) after
midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....64-69.
* Min humidity........30-35 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.......3000 ft agl.
* Transport winds.....Northeast around 5 mph shifting to the
northwest in the afternoon.
* Ventilation Index...Low (25-26) increasing to low (43-85) in the
afternoon.
.Forecast days 3 through 7......
.MONDAY...Mostly clear. Lows 33 to 38. Highs 67 to 72. Northwest
winds 2 to 7 mph.
.TUESDAY...Mostly clear. Lows 33 to 40. Highs 72 to 77. West
winds 3 to 8 mph.
.WEDNESDAY...Partly cloudy. Lows 40 to 46. Highs 70 to 75.
Northwest winds 1 to 5 mph.
.THURSDAY...Mostly clear. Lows 39 to 44. Highs 71 to 76. South
winds up to 5 mph.
.FRIDAY...Partly cloudy. Lows 39 to 45. Highs 68 to 73. Terrain
driven winds less than 5 mph.
$$
ORZ699-262315-
Western Forested Blue Mountains-
126 PM PDT Sat Sep 26 2026
.TODAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....56-62...except 50-57 ridges.
* Min humidity........24-34 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 (31-57) increasing to low to moderate
(112-250) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....34-40.
* Max humidity........50-60 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....East 5 to 10 mph.
* Ventilation Index...Low (64-110) decreasing to low (25-28) after
midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....59-66...except 53-61 ridges.
* Min humidity........27-36 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.....East around 5 mph shifting to the northwest
in the afternoon.
* Ventilation Index...Low (25-33) increasing to low to moderate
(100-252) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Mostly clear. Lows 34 to 39. Highs 58 to 68. Terrain
driven winds less than 5 mph.
.TUESDAY...Mostly clear. Lows 36 to 41. Highs 63 to 72. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Mostly clear. Lows 41 to 46. Highs 61 to 70. Terrain
driven winds less than 5 mph.
.THURSDAY...Mostly clear. Lows 39 to 45. Highs 63 to 72. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 40 to 45. Highs 59 to 68. Terrain
driven winds less than 5 mph.
$$
ORZ696-262315-
John Day Valley-
126 PM PDT Sat Sep 26 2026
.TODAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....59-66...except 54-59 ridges.
* Min humidity........23-29 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph becoming north 1 to 5
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......6000 ft agl.
* Transport winds.....South around 5 mph.
* Ventilation Index...Low (25-32) increasing to low to moderate
(129-231) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....37-42.
* Max humidity........51-59 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....Northeast winds 1 to 5 mph in the evening
becoming light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northeast 5 to 10 mph.
* Ventilation Index...Low (85-129) decreasing to low (25-28) after
midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....61-69...except 56-61 ridges.
* Min humidity........26-32 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 shifting to the northwest
in the afternoon.
* Ventilation Index...Low (25-30) increasing to low to moderate
(98-226) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Mostly clear. Lows 36 to 41. Highs 63 to 72. Terrain
driven winds less than 5 mph.
.TUESDAY...Mostly clear. Lows 39 to 44. Highs 68 to 77. Southwest
winds up to 5 mph.
.WEDNESDAY...Mostly clear. Lows 43 to 48. Highs 66 to 75. Terrain
driven winds less than 5 mph.
.THURSDAY...Mostly clear. Lows 42 to 47. Highs 68 to 77. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 42 to 47. Highs 64 to 73. Terrain
driven winds less than 5 mph.
$$
ORZ700-262315-
Central Mountains of Oregon-
126 PM PDT Sat Sep 26 2026
.TODAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....60-65...except 53-59 ridges.
* Min humidity........26-35 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northeast 2
to 7 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......6000 ft agl.
* Transport winds.....Southeast around 5 mph.
* Ventilation Index...Low (25-31) increasing to low to moderate
(186-274) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....33-40.
* Max humidity........56-70 percent...except 50-59 percent ridges.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 2 to 7 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....Northeast 5 to 10 mph.
* Ventilation Index...Low (104-154) decreasing to low (25-33) after
midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
* Max temperature.....62-67...except 55-62 ridges.
* Min humidity........24-35 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 1
to 5 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......6000 ft agl.
* Transport winds.....North around 5 mph.
* Ventilation Index...Low (25-33) increasing to low to moderate
(121-205) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Mostly clear. Lows 31 to 39. Highs 64 to 70. Northwest
winds up to 5 mph.
.TUESDAY...Mostly clear. Lows 34 to 43. Highs 69 to 75. Southwest
winds 1 to 6 mph.
.WEDNESDAY...Mostly clear. Lows 38 to 46. Highs 68 to 73. West
winds 1 to 6 mph.
.THURSDAY...Mostly clear. Lows 37 to 45. Highs 68 to 75. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 36 to 45. Highs 65 to 71. Northwest
winds 1 to 6 mph.
$$
ORZ703-262315-
Warm Springs Reservation-
126 PM PDT Sat Sep 26 2026
.TODAY...
* Sky/weather.........Mostly sunny then becoming partly cloudy.
* Max temperature.....58-65...except 49-56 ridges.
* Min humidity........31-38 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming east 2 to 7
mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming east 1 to 5
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......5000 ft agl.
* Transport winds.....Southwest around 5 mph shifting to the east
in the afternoon.
* Ventilation Index...Low (25-28) increasing to low (173-199) in
the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....39-44.
* Max humidity........50-57 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 2 to 7 mph.
* Ridges/upr slopes....North winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....Northeast around 10 mph.
* Ventilation Index...Low (114-144) decreasing to low (31-45) after
midnight.
.SUNDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....61-66...except 54-59 ridges.
* Min humidity........29-38 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northeast winds 1 to 5 mph.
* Ridges/upr slopes....Northeast winds 1 to 6 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......4000 ft agl.
* Transport winds.....Northeast 5 to 10 mph.
* Ventilation Index...Low (46-66) increasing to low to moderate
(138-226) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Mostly clear. Lows 37 to 42. Highs 63 to 73. Terrain
driven winds less than 5 mph.
.TUESDAY...Partly cloudy. Lows 41 to 46. Highs 65 to 77. West
winds 2 to 7 mph.
.WEDNESDAY...Partly cloudy. Lows 44 to 49. Highs 65 to 74. West
winds 2 to 7 mph.
.THURSDAY...Partly cloudy. Lows 44 to 49. Highs 64 to 73. West
winds up to 5 mph.
.FRIDAY...Partly cloudy. Lows 42 to 47. Highs 62 to 71. Northwest
winds 1 to 5 mph.
$$
ORZ704-262315-
Northern Deschutes National Forest-
126 PM PDT Sat Sep 26 2026
.TODAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....58-63...except 49-56 ridges.
* Min humidity........30-40 percent...except 36-51 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.......5000 ft agl.
* Transport winds.....Southeast 5 to 10 mph.
* Ventilation Index...Low (25-36) increasing to low to moderate
(192-238) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....32-39.
* Max humidity........55-70 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 1 to 6 mph.
* Ridges/upr slopes....North winds 1 to 6 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....Northeast 5 to 10 mph.
* Ventilation Index...Low (107-137) decreasing to low (25-36) after
midnight.
.SUNDAY...
* Sky/weather.........Partly cloudy then becoming sunny.
* Max temperature.....61-66...except 53-59 ridges.
* Min humidity........29-38 percent...except 34-49 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....Northeast winds up to 5 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......4500 ft agl.
* Transport winds.....North around 5 mph.
* Ventilation Index...Low (28-48) increasing to low (101-171) in
the afternoon.
.Forecast days 3 through 7......
.MONDAY...Mostly clear. Lows 31 to 38. Highs 59 to 70. Terrain
driven winds less than 5 mph.
.TUESDAY...Partly cloudy. Lows 34 to 41. Highs 61 to 73. West
winds 2 to 7 mph.
.WEDNESDAY...Partly cloudy. Lows 38 to 44. Highs 62 to 72. West
winds 1 to 6 mph.
.THURSDAY...Partly cloudy. Lows 37 to 44. Highs 61 to 71. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 36 to 43. Highs 59 to 69. Terrain
driven winds less than 5 mph.
$$
ORZ705-262315-
Southern Deschutes National Forest-
126 PM PDT Sat Sep 26 2026
.TODAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....59-64...except 50-57 ridges.
* Min humidity........29-41 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.....Southeast around 5 mph.
* Ventilation Index...Low (31-47) increasing to moderate (230-296)
in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....29-37.
* Max humidity........63-78 percent...except 53-64 percent ridges.
* Humidity recovery...Good...except Moderate ridges.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 2 to 7 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....Northeast winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....Northeast 5 to 10 mph.
* Ventilation Index...Low (122-180) decreasing to low (25-35) after
midnight.
.SUNDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....60-66...except 52-61 ridges.
* Min humidity........27-39 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.......6500 ft agl.
* Transport winds.....Northeast around 5 mph shifting to the
northwest in the afternoon.
* Ventilation Index...Low (25-38) increasing to low (120-186) in
the afternoon.
.Forecast days 3 through 7......
.MONDAY...Mostly clear. Lows 27 to 35. Highs 60 to 68. Terrain
driven winds less than 5 mph.
.TUESDAY...Mostly clear. Lows 30 to 39. Highs 64 to 73. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Mostly clear. Lows 32 to 40. Highs 65 to 73. Terrain
driven winds less than 5 mph.
.THURSDAY...Mostly clear. Lows 33 to 41. Highs 64 to 73. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 32 to 40. Highs 61 to 70. Terrain
driven winds less than 5 mph.
$$
ORZ697-262315-
Central Blue Mountains-
126 PM PDT Sat Sep 26 2026
.TODAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....58-63...except 52-59 ridges.
* Min humidity........27-34 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.....West around 5 mph.
* Ventilation Index...Low (26-44) increasing to moderate (268-332)
in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....33-38.
* Max humidity........52-62 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....East 5 to 10 mph.
* Ventilation Index...Low (79-107) decreasing to low (25-33) after
midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....62-67...except 56-62 ridges.
* Min humidity........27-33 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.......7000 ft agl.
* Transport winds.....Southeast around 5 mph shifting to the
southwest in the afternoon.
* Ventilation Index...Low (29-47) increasing to moderate to high
(327-513) in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Mostly clear. Lows 33 to 39. Highs 60 to 67. Northwest
winds up to 5 mph.
.TUESDAY...Mostly clear. Lows 33 to 39. Highs 65 to 72. West
winds 1 to 6 mph.
.WEDNESDAY...Mostly clear. Lows 38 to 44. Highs 64 to 71. Terrain
driven winds less than 5 mph.
.THURSDAY...Mostly clear. Lows 37 to 43. Highs 66 to 73. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 37 to 44. Highs 62 to 69. Terrain
driven winds less than 5 mph.
$$
ORZ698-262315-
Southern Blue Mountains-
126 PM PDT Sat Sep 26 2026
.TODAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....59-64...except 54-59 ridges.
* Min humidity........27-32 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.....Northeast around 5 mph shifting to the south
in the afternoon.
* Ventilation Index...Low (26-38) increasing to moderate (256-322)
in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....34-40.
* Max humidity........50-59 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....East around 10 mph.
* Ventilation Index...Low (101-131) decreasing to low (32-48) after
midnight.
.SUNDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....62-67.
* Min humidity........24-29 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.....East around 10 mph shifting to the southwest
in the afternoon.
* Ventilation Index...Low (35-53) increasing to moderate (331-479)
in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Mostly clear. Lows 33 to 39. Highs 64 to 71. Northwest
winds 2 to 7 mph.
.TUESDAY...Mostly clear. Lows 33 to 39. Highs 69 to 74. Northwest
winds 2 to 7 mph.
.WEDNESDAY...Mostly clear. Lows 38 to 44. Highs 69 to 74.
Northwest winds up to 5 mph.
.THURSDAY...Mostly clear. Lows 37 to 43. Highs 70 to 76. South
winds up to 5 mph.
.FRIDAY...Mostly clear. Lows 37 to 43. Highs 67 to 73. Northwest
winds up to 5 mph.
$$
.8-14 DAY OUTLOOK for Saturday October 3 through Friday October 9...
A greater chance of above normal temperatures and below normal
precipitation.
$$