Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
378
FNUS56 KPDT 141159
FWFPDT
Fire Weather Planning Forecast for NE Oregon and SE Washington
National Weather Service Pendleton OR
459 AM PDT Mon Sep 14 2026
.DISCUSSION... A drying and slight warming trend will prevail
through the week with highs near average by Thursday. Chances for
light rain confined mainly to the mountains late Tuesday, late
Thursday and Friday. There is a slight chance (10-20%) of
thunderstorms for the Blue Mountains Thursday and Friday.
***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. ***
WAZ695-142315-
East Washington South Central Cascade Mountains-
459 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather.........Partly cloudy. Patchy dense fog in the
morning.
* Max temperature.....58-64...except 49-57 ridges.
* Min humidity........54-69 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 7 mph in the morning
becoming upslope less than 5 mph.
* Ridges/upr slopes....West winds 4 to 9 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.....West 10 to 15 mph.
* Ventilation Index...Low (82-142) increasing to low to moderate
(148-252) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....39-45.
* Max humidity........82-97 percent.
* Humidity recovery...Excellent.
* 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.....Northwest 5 to 10 mph.
* Ventilation Index...Low (56-102) decreasing to low (25-35) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly cloudy. A chance of showers in the
afternoon.
* Max temperature.....55-62...except 47-54 ridges.
* Min humidity........63-74 percent...except 70-85 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....10 percent (very low chance).
* Mixing height.......4000 ft agl.
* Transport winds.....North around 5 mph.
* Ventilation Index...Low (27-43) increasing to low (113-153) in
the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...Warmer. A slight chance of showers. Mostly clear.
Lows 39 to 45. Highs 59 to 72. North winds 1 to 6 mph.
.THURSDAY...Clear. Lows 43 to 48. Highs 65 to 77. Terrain driven
winds less than 5 mph.
.FRIDAY...Mostly clear. Lows 45 to 51. Highs 64 to 76. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 45 to 50. Highs 62 to 74. Terrain
driven winds less than 5 mph.
.SUNDAY...Mostly clear. Lows 43 to 49. Highs 63 to 74. Northwest
winds up to 5 mph.
$$
WAZ690-142315-
Kittitas Valley-
459 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather.........Mostly sunny then becoming partly cloudy.
* Max temperature.....62-69...except 55-62 ridges.
* Min humidity........51-64 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 2 to 7 mph in the morning
becoming upslope less than 5 mph.
* Ridges/upr slopes....West winds 3 to 8 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......5000 ft agl.
* Transport winds.....West around 10 mph.
* Ventilation Index...Low (51-113) increasing to low to moderate
(164-310) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....44-49.
* Max humidity........78-93 percent.
* Humidity recovery...Excellent.
* 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.....Northwest around 10 mph.
* Ventilation Index...Low (59-113) decreasing to low (28-40) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly cloudy. A slight chance of showers in
the afternoon.
* Max temperature.....59-66...except 51-59 ridges.
* Min humidity........64-77 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....10 percent (very low chance).
* Mixing height.......5000 ft agl.
* Transport winds.....North around 5 mph.
* Ventilation Index...Low (34-50) increasing to low to moderate
(148-226) in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...Mostly clear. Lows 45 to 50. Highs 66 to 73. North
winds 1 to 6 mph.
.THURSDAY...Clear. Lows 47 to 53. Highs 71 to 77. Terrain driven
winds less than 5 mph.
.FRIDAY...Mostly clear. Lows 50 to 56. Highs 71 to 78. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 49 to 54. Highs 71 to 78. Terrain
driven winds less than 5 mph.
.SUNDAY...Mostly clear. Lows 49 to 54. Highs 71 to 78. North
winds 1 to 6 mph.
$$
WAZ694-142315-
Yakama Alpine District-
459 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....63-69...except 55-64 ridges.
* Min humidity........45-55 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 2 to 7 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.......4500 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Low (46-96) increasing to low to moderate
(120-240) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....39-46.
* Max humidity........77-92 percent.
* Humidity recovery...Excellent.
* 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.....Northwest around 5 mph.
* Ventilation Index...Low (35-71) decreasing to low (25-26) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly cloudy. A chance of showers in the
afternoon.
* Max temperature.....60-67...except 51-61 ridges.
* Min humidity........56-67 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....10 percent (very low chance).
* Mixing height.......3500 ft agl.
* Transport winds.....North around 5 mph.
* Ventilation Index...Low (25-30) increasing to low (86-146) in the
afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...A chance of showers. Mostly clear. Lows 41 to 48.
Highs 60 to 73. North winds 2 to 7 mph.
.THURSDAY...Clear. Lows 43 to 50. Highs 67 to 78. North winds up
to 5 mph.
.FRIDAY...Mostly clear. Lows 45 to 52. Highs 67 to 79. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 45 to 52. Highs 67 to 79. Terrain
driven winds less than 5 mph.
.SUNDAY...Mostly clear. Lows 44 to 51. Highs 67 to 78. Northwest
winds 1 to 5 mph.
$$
ORZ691-WAZ691-142315-
Lower Columbia Basin of Oregon-Lower Columbia Basin of Washington-
459 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....67-73...except 61-67 ridges.
* Min humidity........36-50 percent...except 48-58 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 4 to 9 mph.
* Ridges/upr slopes....Southwest winds 4 to 9 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......5000 ft agl.
* Transport winds.....Southwest around 10 mph.
* Ventilation Index...Low (58-154) increasing to moderate (208-436)
in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....45-50.
* Max humidity........73-88 percent.
* Humidity recovery...Excellent.
* 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.....Southwest around 5 mph.
* Ventilation Index...Low (44-98) decreasing to low (25-31) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....64-70...except 58-65 ridges.
* Min humidity........45-60 percent...except 56-70 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming north 1 to
5 mph in the afternoon.
* 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.......4500 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Low (25-37) increasing to low (120-186) in
the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...A slight chance of showers. Partly cloudy. Lows
46 to 51. Highs 68 to 77. North winds 4 to 9 mph.
.THURSDAY...Mostly clear. Lows 47 to 52. Highs 73 to 79. North
winds 3 to 8 mph.
.FRIDAY...A slight chance of showers. Mostly clear. Lows 50 to
55. Highs 75 to 81. Southwest winds 1 to 6 mph.
.SATURDAY...Mostly clear. Lows 49 to 54. Highs 76 to 82.
Southwest winds 1 to 5 mph.
.SUNDAY...Mostly clear. Lows 50 to 55. Highs 76 to 82. West winds
1 to 6 mph.
$$
ORZ692-WAZ692-142315-
Northern Blue Mountains of Oregon-Blue Mountains of Washington-
459 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather.........Mostly cloudy then becoming mostly sunny.
* Max temperature.....60-68...except 54-59 ridges.
* Min humidity........41-55 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 7 mph.
* Ridges/upr slopes....West winds 3 to 8 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 10 to 15 mph.
* Ventilation Index...Low to moderate (160-214) increasing to
moderate (271-347) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....39-46.
* Max humidity........70-84 percent.
* Humidity recovery...Good.
* 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.....Southeast around 5 mph.
* Ventilation Index...Low (25-44) decreasing to low (25-28) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....61-68...except 55-62 ridges.
* Min humidity........40-55 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.....South around 5 mph shifting to the west in
the afternoon.
* Ventilation Index...Low (26-42) increasing to low to moderate
(131-233) in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...A slight chance of showers. Partly cloudy. Lows
40 to 47. Highs 61 to 71. North winds up to 5 mph.
.THURSDAY...Mostly clear. Lows 41 to 50. Highs 65 to 74. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 43 to 52. Highs 66 to 76. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 44 to 52. Highs 69 to 78. Terrain
driven winds less than 5 mph.
.SUNDAY...Mostly clear. Lows 44 to 52. Highs 69 to 78. Terrain
driven winds less than 5 mph.
$$
ORZ693-WAZ693-142315-
Canyon Grasslands of Wallowa County-
Southeast Washington Grande Ronde Valley-
459 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....61-71...except 56-63 ridges.
* Min humidity........34-44 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 7 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.....West 10 to 15 mph.
* Ventilation Index...Low to moderate (142-236) increasing to
moderate (291-379) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....37-46.
* Max humidity........72-87 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph becoming south 1
to 5 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....North around 5 mph shifting to the south
after midnight.
* Ventilation Index...Low (25-46).
.TUESDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....65-73...except 60-66 ridges.
* Min humidity........30-38 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....South winds 1 to 5 mph shifting to the north
in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......6000 ft agl.
* Transport winds.....Southwest 5 to 10 mph.
* Ventilation Index...Low (25-47) increasing to low to moderate
(171-327) in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...A slight chance of showers. Partly cloudy. Lows
39 to 48. Highs 64 to 74. North winds 1 to 6 mph.
.THURSDAY...Mostly clear. Lows 40 to 50. Highs 69 to 77. North
winds 1 to 6 mph.
.FRIDAY...A chance of showers and a slight chance of
thunderstorms. Partly cloudy. Lows 43 to 52. Highs 67 to 77.
Terrain driven winds less than 5 mph.
.SATURDAY...A slight chance of showers. Mostly clear. Lows 42 to
52. Highs 71 to 80. Southwest winds up to 5 mph.
.SUNDAY...Mostly clear. Lows 42 to 52. Highs 72 to 81. East winds
up to 5 mph.
$$
ORZ701-142315-
Eastern Columbia River Gorge of Oregon-
459 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....68-73.
* Min humidity........38-53 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 2 to 7 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.......4500 ft agl.
* Transport winds.....West around 10 mph.
* Ventilation Index...Low (55-135) increasing to moderate (204-386)
in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....43-48.
* Max humidity........70-85 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...West winds up to 5 mph in the evening.
Drainage winds less than 5 mph. In the eastern Columbia River
Gorge, west winds 1 to 6 mph in the evening.
* Ridges/upr slopes....light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Low (76-122) decreasing to low (26-36) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....68-73...except 63-68 ridges.
* Min humidity........44-59 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 5 to 10 mph.
* Ventilation Index...Low (26-54) increasing to low to moderate
(158-206) in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...Partly cloudy. Lows 45 to 51. Highs 71 to 76. North
winds 1 to 6 mph.
.THURSDAY...Mostly clear. Lows 47 to 52. Highs 76 to 81. East
winds 1 to 6 mph.
.FRIDAY...Mostly clear. Lows 49 to 54. Highs 77 to 82. West winds
up to 5 mph.
.SATURDAY...Mostly clear. Lows 48 to 54. Highs 76 to 81. West
winds 1 to 6 mph.
.SUNDAY...Mostly clear. Lows 47 to 52. Highs 77 to 82. North
winds 1 to 6 mph.
$$
ORZ702-142315-
East Slopes of the Mt. Hood National Forest-
459 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....64-72...except 58-66 ridges.
* Min humidity........35-50 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 5 to 10 mph.
* Ventilation Index...Low (59-103) increasing to low to moderate
(138-214) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....39-45.
* Max humidity........63-78 percent.
* Humidity recovery...Good.
* 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.....West 5 to 10 mph.
* Ventilation Index...Low (52-82) decreasing to low (25-33) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....62-69...except 57-64 ridges.
* Min humidity........43-58 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.
* Ventilation Index...Low (29-45) increasing to low (142-190) in
the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...Partly cloudy. Lows 41 to 48. Highs 60 to 71.
Northeast winds 1 to 6 mph.
.THURSDAY...Mostly clear. Lows 45 to 51. Highs 67 to 77. Terrain
driven winds less than 5 mph.
.FRIDAY...Mostly clear. Lows 46 to 52. Highs 67 to 80. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 46 to 52. Highs 67 to 80. Terrain
driven winds less than 5 mph.
.SUNDAY...Mostly clear. Lows 45 to 51. Highs 67 to 79. Terrain
driven winds less than 5 mph.
$$
ORZ695-142315-
Eagle Cap Wilderness-
459 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....58-67...except 48-57 ridges.
* Min humidity........37-52 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 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.....West 5 to 10 mph.
* Ventilation Index...Low (57-137) increasing to low to moderate
(195-267) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....39-44...except 34-40 ridges.
* Max humidity........68-83 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....light winds less than 5 mph becoming
southwest 2 to 7 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest around 5 mph shifting to the south
after midnight.
* Ventilation Index...Low (25-42) decreasing to low (25-29) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....61-71...except 52-62 ridges.
* Min humidity........29-40 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming southwest 2
to 5 mph in the afternoon.
* Ridges/upr slopes....South winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......6000 ft agl.
* Transport winds.....Southwest 5 to 10 mph.
* Ventilation Index...Low (35-77) increasing to moderate (289-405)
in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...A slight chance of showers. Partly cloudy. Lows
36 to 45. Highs 57 to 72. North winds 4 to 9 mph.
.THURSDAY...Mostly clear with a slight chance of showers. Lows
39 to 47. Highs 61 to 75. North winds 4 to 9 mph.
.FRIDAY...A chance of showers and a slight chance of
thunderstorms. Mostly cloudy. Lows 41 to 49. Highs 57 to 72.
Terrain driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 40 to 48. Highs 60 to 75. West
winds 1 to 5 mph.
.SUNDAY...Mostly clear. Lows 41 to 49. Highs 62 to 77. Terrain
driven winds less than 5 mph.
$$
ORZ694-142315-
Grande Ronde Valley of Oregon-
459 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
Patchy fog in the morning.
* Max temperature.....65-70.
* Min humidity........38-43 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.....West 5 to 10 mph.
* Ventilation Index...Low (66-106) increasing to low to moderate
(167-253) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....36-42.
* Max humidity........76-91 percent.
* Humidity recovery...Excellent.
* 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 shifting to the southeast
after midnight.
* Ventilation Index...Low (32-52) decreasing to low (25) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....69-74.
* Min humidity........32-39 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph becoming east 3 to 6
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 (27-45) increasing to low to moderate
(172-286) in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...A slight chance of showers. Partly cloudy. Lows
39 to 44. Highs 72 to 77. North winds 5 to 11 mph.
.THURSDAY...Mostly clear. Lows 39 to 44. Highs 74 to 79.
Northwest winds 4 to 10 mph.
.FRIDAY...Partly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 41 to 46. Highs 72 to 77. Northwest
winds 1 to 5 mph.
.SATURDAY...Mostly clear. Lows 41 to 46. Highs 76 to 81. Terrain
driven winds less than 5 mph.
.SUNDAY...Mostly clear. Lows 42 to 47. Highs 77 to 82. Terrain
driven winds less than 5 mph.
$$
ORZ699-142315-
Western Forested Blue Mountains-
459 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....61-67...except 55-62 ridges.
* Min humidity........28-43 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....West winds 1 to 5 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 (71-129) increasing to moderate (226-288)
in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....36-42.
* Max humidity........63-78 percent.
* Humidity recovery...Good.
* 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.....North around 5 mph shifting to the south
after midnight.
* Ventilation Index...Low (25-59) decreasing to low (25-26) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....62-70...except 57-65 ridges.
* Min humidity........26-40 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.......7500 ft agl.
* Transport winds.....Southwest 5 to 10 mph.
* Ventilation Index...Low (26-50) increasing to moderate (201-469)
in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...A slight chance of showers. Partly cloudy. Lows
38 to 44. Highs 58 to 68. North winds 2 to 7 mph.
.THURSDAY...Mostly clear with a slight chance of showers and
thunderstorms. Lows 39 to 44. Highs 63 to 72. North winds 1 to
6 mph.
.FRIDAY...Partly cloudy with a slight chance of showers and
thunderstorms. Lows 42 to 47. Highs 65 to 74. Terrain driven
winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 41 to 48. Highs 68 to 77. Terrain
driven winds less than 5 mph.
.SUNDAY...Mostly clear. Lows 42 to 48. Highs 69 to 78. Terrain
driven winds less than 5 mph.
$$
ORZ696-142315-
John Day Valley-
459 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....63-70...except 58-63 ridges.
* Min humidity........24-33 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 (39-67) increasing to moderate (205-251)
in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....39-45.
* Max humidity........57-68 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.......Near surface.
* Transport winds.....North around 5 mph shifting to the southeast
after midnight.
* Ventilation Index...Low (51-87) decreasing to low (25) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....64-73...except 59-65 ridges.
* Min humidity........25-36 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 becoming northwest 1
to 5 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8000 ft agl.
* Transport winds.....South around 5 mph shifting to the west in
the afternoon.
* Ventilation Index...Low (25-33) increasing to low to moderate
(182-404) in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...A chance of showers. Partly cloudy. Lows 40 to 47.
Highs 62 to 72. North winds 2 to 7 mph.
.THURSDAY...Mostly clear with a slight chance of showers and
thunderstorms. Lows 40 to 46. Highs 67 to 75. North winds 1 to
6 mph.
.FRIDAY...A slight chance of showers and thunderstorms. Partly
cloudy. Lows 43 to 49. Highs 70 to 79. Terrain driven winds less
than 5 mph.
.SATURDAY...Mostly clear. Lows 44 to 50. Highs 73 to 82. Terrain
driven winds less than 5 mph.
.SUNDAY...Mostly clear. Lows 45 to 51. Highs 74 to 82. Terrain
driven winds less than 5 mph.
$$
ORZ700-142315-
Central Mountains of Oregon-
459 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....65-71...except 58-63 ridges.
* Min humidity........21-29 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.......5500 ft agl.
* Transport winds.....Southwest around 5 mph.
* Ventilation Index...Low (30-52) increasing to low to moderate
(151-223) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....35-43.
* Max humidity........59-72 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.......Near surface.
* Transport winds.....North around 5 mph shifting to the south
after midnight.
* Ventilation Index...Low (59-109) decreasing to low (25) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....66-71...except 59-66 ridges.
* Min humidity........23-35 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 2
to 7 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming northwest 1
to 5 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7500 ft agl.
* Transport winds.....South around 5 mph shifting to the northwest
in the afternoon.
* Ventilation Index...Low (25-33) increasing to moderate (246-412)
in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...A chance of showers. Partly cloudy. Lows 35 to 44.
Highs 63 to 69. North winds 4 to 9 mph.
.THURSDAY...Partly cloudy with a slight chance of showers and
thunderstorms. Lows 34 to 44. Highs 67 to 74. North winds 3 to
8 mph.
.FRIDAY...A slight chance of showers. Mostly clear. Lows 38 to
48. Highs 71 to 79. West winds up to 5 mph.
.SATURDAY...Mostly clear. Lows 38 to 48. Highs 74 to 81. Terrain
driven winds less than 5 mph.
.SUNDAY...Mostly clear. Lows 39 to 48. Highs 75 to 81. Southeast
winds up to 5 mph.
$$
ORZ703-142315-
Warm Springs Reservation-
459 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....68-74...except 58-65 ridges.
* Min humidity........28-35 percent...except 35-47 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...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.......5000 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Low (33-89) increasing to low to moderate
(143-227) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....41-46.
* Max humidity........69-83 percent.
* Humidity recovery...Good.
* 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.....Northwest around 5 mph.
* Ventilation Index...Low (74-108) decreasing to low (25-28) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....65-72...except 55-62 ridges.
* Min humidity........34-43 percent...except 42-54 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming north 2 to
7 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming northwest 1
to 5 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......5500 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Low (25-44) increasing to moderate (241-307)
in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...Partly cloudy. Lows 43 to 48. Highs 62 to 72. North
winds 4 to 9 mph.
.THURSDAY...Mostly clear. Lows 45 to 50. Highs 70 to 78.
Northeast winds 3 to 8 mph.
.FRIDAY...Mostly clear. Lows 47 to 52. Highs 72 to 82. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 47 to 52. Highs 72 to 83. West
winds 1 to 6 mph.
.SUNDAY...Mostly clear. Lows 46 to 51. Highs 73 to 83. Southeast
winds 1 to 6 mph.
$$
ORZ704-142315-
Northern Deschutes National Forest-
459 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....68-73...except 57-65 ridges.
* Min humidity........24-32 percent...except 30-44 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...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.......5000 ft agl.
* Transport winds.....West around 5 mph.
* Ventilation Index...Low (37-61) increasing to low to moderate
(165-215) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....36-42.
* Max humidity........66-80 percent.
* Humidity recovery...Good.
* 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.....West around 5 mph.
* Ventilation Index...Low (53-97) decreasing to low (25) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....66-71...except 55-63 ridges.
* Min humidity........31-44 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming north 1 to
5 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming northwest 1
to 5 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......6500 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Low (26-42) increasing to moderate (298-406)
in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...A slight chance of showers. Partly cloudy. Lows
37 to 44. Highs 57 to 68. North winds 4 to 9 mph.
.THURSDAY...Mostly clear. Lows 38 to 44. Highs 65 to 76.
Northeast winds 2 to 7 mph.
.FRIDAY...Mostly clear. Lows 40 to 47. Highs 68 to 80. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 40 to 47. Highs 69 to 81. Terrain
driven winds less than 5 mph.
.SUNDAY...Mostly clear. Lows 40 to 47. Highs 70 to 81. Terrain
driven winds less than 5 mph.
$$
ORZ705-142315-
Southern Deschutes National Forest-
459 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather.........Mostly sunny. Patchy fog in the morning.
* Max temperature.....65-70...except 57-64 ridges.
* Min humidity........18-30 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....West winds 1 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.....West around 5 mph.
* Ventilation Index...Low (25-45) increasing to low (137-181) in
the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....31-40.
* Max humidity........61-76 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.......Near surface.
* Transport winds.....North around 5 mph shifting to the west after
midnight.
* Ventilation Index...Low (79-131) decreasing to low (25) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....66-71...except 56-64 ridges.
* Min humidity........22-37 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 2
to 6 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming northwest 2
to 6 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8500 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Low (26-40) increasing to moderate to high
(382-564) in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...A chance of showers. Partly cloudy. Lows 31 to 39.
Highs 58 to 66. North winds 3 to 8 mph.
.THURSDAY...Mostly clear with a slight chance of showers and
thunderstorms. Lows 31 to 40. Highs 65 to 72. North winds 1 to
6 mph.
.FRIDAY...A slight chance of showers. Mostly clear. Lows 34 to
43. Highs 69 to 76. Terrain driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 34 to 44. Highs 70 to 79. Terrain
driven winds less than 5 mph.
.SUNDAY...Mostly clear. Lows 35 to 44. Highs 71 to 79. Terrain
driven winds less than 5 mph.
$$
ORZ697-142315-
Central Blue Mountains-
459 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather.........Partly cloudy then becoming sunny.
* Max temperature.....62-67...except 57-62 ridges.
* Min humidity........22-28 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.......6000 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Low (53-97) increasing to moderate (260-308)
in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....35-40.
* Max humidity........56-63 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.....North around 5 mph shifting to the south
after midnight.
* Ventilation Index...Low (30-78) decreasing to low (25) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....66-71...except 61-67 ridges.
* Min humidity........22-29 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming southwest 2
to 5 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8000 ft agl.
* Transport winds.....Southwest 5 to 10 mph.
* Ventilation Index...Low (39-57) increasing to moderate to high
(479-567) in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...A chance of showers. Partly cloudy. Lows 36 to 43.
Highs 62 to 68. North winds 2 to 7 mph.
.THURSDAY...Partly cloudy with a slight chance of showers and
thunderstorms. Lows 36 to 43. Highs 65 to 70. North winds 2 to
7 mph.
.FRIDAY...Partly cloudy with a chance of showers and a slight
chance of thunderstorms. Lows 38 to 45. Highs 64 to 71. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 39 to 45. Highs 68 to 75. Terrain
driven winds less than 5 mph.
.SUNDAY...Mostly clear. Lows 40 to 46. Highs 69 to 76. Terrain
driven winds less than 5 mph.
$$
ORZ698-142315-
Southern Blue Mountains-
459 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather.........Mostly sunny. Patchy fog in the morning.
* Max temperature.....62-67.
* 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.....West around 5 mph.
* Ventilation Index...Low (41-67) increasing to moderate (226-300)
in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....35-40.
* Max humidity........55-63 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.....West around 5 mph shifting to the east after
midnight.
* Ventilation Index...Low (49-89) decreasing to low (25) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....67-72.
* Min humidity........18-24 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.......8000 ft agl.
* Transport winds.....South 5 to 10 mph.
* Ventilation Index...Low (25-43) increasing to moderate to high
(388-526) in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...A chance of showers. Partly cloudy. Lows 37 to 44.
Highs 65 to 72. North winds 4 to 9 mph.
.THURSDAY...Partly cloudy with a slight chance of showers and
thunderstorms. Lows 36 to 43. Highs 67 to 73. North winds 2 to
7 mph.
.FRIDAY...A chance of showers and a slight chance of
thunderstorms. Partly cloudy. Lows 38 to 45. Highs 67 to 72.
Northwest winds up to 5 mph.
.SATURDAY...Mostly clear. Lows 38 to 44. Highs 71 to 76. West
winds up to 5 mph.
.SUNDAY...Mostly clear. Lows 40 to 46. Highs 73 to 78. Terrain
driven winds less than 5 mph.
$$
.8-14 DAY OUTLOOK for Monday September 21 through Sunday September 27...
A greater chance of near- to above-normal temperatures and above-
normal precipitation.
$$