Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
484
FNUS56 KPDT 271108
FWFPDT
Fire Weather Planning Forecast for NE Oregon and SE Washington
National Weather Service Pendleton OR
408 AM PDT Sun Sep 27 2026
.DISCUSSION...
Dry conditions Today and Monday will bring generally light winds
across the area. Overcast conditions this morning will give way
to sun west to east through the late afternoon. An approaching
weather system for Monday night into Tuesday will bring breezy to
windy conditions back to the gaps and Columbia Gorge on Tuesday
as well as wetting rains across the Washington Cascade upper
slopes.
***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. ***
WAZ695-272315-
East Washington South Central Cascade Mountains-
408 AM PDT Sun Sep 27 2026
.TODAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
* Max temperature.....57-64...except 50-57 ridges.
* Min humidity........31-40 percent.
* 20-foot winds.......
* Valleys/lwr slopes...East winds 2 to 7 mph in the morning
becoming upslope less than 5 mph.
* Ridges/upr slopes....East winds 4 to 9 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.....Southeast 5 to 10 mph.
* Ventilation Index...Low (48-84) increasing to low (70-162) in the
afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear. Areas of frost after midnight.
* Min temperature.....34-39.
* Max humidity........65-80 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 becoming west 1
to 5 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Low (27-49) decreasing to low (25-32) after
midnight.
.MONDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....59-65...except 51-59 ridges.
* Min humidity........29-39 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming west 1 to 6
mph in the afternoon.
* Ridges/upr slopes....West winds 1 to 6 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......6000 ft agl.
* Transport winds.....West around 10 mph.
* Ventilation Index...Low (35-59) increasing to moderate (284-418)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...A chance of showers. Mostly cloudy. Lows 38 to 44.
Highs 49 to 61. West winds 3 to 8 mph.
.WEDNESDAY...Mostly cloudy with a chance of showers. Lows 41 to
47. Highs 53 to 64. West winds 2 to 7 mph.
.THURSDAY...Mostly cloudy. Lows 39 to 45. Highs 54 to 65. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 40 to 46. Highs 53 to 64. Terrain
driven winds less than 5 mph.
.SATURDAY...Partly cloudy. Lows 38 to 44. Highs 57 to 68. Terrain
driven winds less than 5 mph.
$$
WAZ690-272315-
Kittitas Valley-
408 AM PDT Sun Sep 27 2026
.TODAY...
* Sky/weather.........Mostly cloudy then becoming mostly sunny.
* Max temperature.....60-66...except 53-60 ridges.
* Min humidity........30-39 percent.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 4 to 9 mph in the morning
becoming upslope less than 5 mph.
* Ridges/upr slopes....Northeast winds 7 to 13 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.....Northeast 5 to 10 mph.
* Ventilation Index...Low (47-99) increasing to low to moderate
(159-283) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....39-44.
* 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.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Low (25-37).
.MONDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....65-71...except 57-65 ridges.
* Min humidity........28-36 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming west 1 to 6
mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming west 1 to 5
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......6000 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Low (32-56) increasing to moderate (224-380)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly cloudy. Lows 44 to 49. Highs 63 to 71. West
winds 5 to 12 mph.
.WEDNESDAY...Partly cloudy. Lows 46 to 51. Highs 63 to 71.
Northwest winds 1 to 6 mph.
.THURSDAY...Partly cloudy. Lows 45 to 50. Highs 64 to 71. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 45 to 50. Highs 63 to 71. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 44 to 49. Highs 65 to 72. Terrain
driven winds less than 5 mph.
$$
WAZ694-272315-
Yakama Alpine District-
408 AM PDT Sun Sep 27 2026
.TODAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....59-67...except 52-61 ridges.
* Min humidity........30-37 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northeast winds 3 to 8 mph.
* Ridges/upr slopes....Northeast winds 4 to 10 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.....Northeast 5 to 10 mph.
* Ventilation Index...Low (55-93) increasing to low to moderate
(124-212) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....35-42.
* Max humidity........60-75 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.....West around 5 mph.
* Ventilation Index...Low (25-31).
.MONDAY...
* Sky/weather.........Partly cloudy. Patchy frost in the morning.
* Max temperature.....64-70...except 55-65 ridges.
* Min humidity........28-37 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming southwest 1
to 6 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming west 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 (26-38) increasing to moderate (239-319)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Partly cloudy. Lows 38 to 46. Highs 54 to 67. West
winds 4 to 9 mph.
.WEDNESDAY...A slight chance of showers. Partly cloudy. Lows
41 to 48. Highs 58 to 69. West winds 3 to 8 mph.
.THURSDAY...Partly cloudy. Lows 40 to 47. Highs 58 to 70. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 40 to 47. Highs 57 to 68. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 39 to 46. Highs 60 to 71. Terrain
driven winds less than 5 mph.
$$
ORZ691-WAZ691-272315-
Lower Columbia Basin of Oregon-Lower Columbia Basin of Washington-
408 AM PDT Sun Sep 27 2026
.TODAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
* Max temperature.....62-69.
* Min humidity........25-35 percent.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 3 to 8 mph.
* Ridges/upr slopes....North winds 6 to 12 mph decreasing to 1 to 6
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......5000 ft agl.
* Transport winds.....North 5 to 10 mph.
* Ventilation Index...Low (30-82) increasing to low to moderate
(139-297) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....39-44.
* 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.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....North around 5 mph shifting to the southwest
after midnight.
* Ventilation Index...Low (29-63) decreasing to low (25-26) after
midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....68-74...except 64-69 ridges.
* Min humidity........21-30 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming west 2 to 7
mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming southwest 1
to 6 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......5500 ft agl.
* Transport winds.....Southwest 5 to 10 mph.
* Ventilation Index...Low (25-47) increasing to moderate (225-391)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Partly cloudy. Lows 45 to 50. Highs 70 to 76.
Southwest winds 12 to 20 mph.
.WEDNESDAY...Partly cloudy. Lows 47 to 52. Highs 69 to 74.
Southwest winds 4 to 10 mph.
.THURSDAY...Partly cloudy. Lows 46 to 51. Highs 69 to 75.
Northwest winds up to 5 mph.
.FRIDAY...Partly cloudy. Lows 47 to 52. Highs 67 to 73. West
winds 1 to 6 mph.
.SATURDAY...Mostly clear. Lows 45 to 50. Highs 68 to 74.
Northwest winds 1 to 6 mph.
$$
ORZ692-WAZ692-272315-
Northern Blue Mountains of Oregon-Blue Mountains of Washington-
408 AM PDT Sun Sep 27 2026
.TODAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....57-64...except 53-59 ridges.
* Min humidity........31-42 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southeast winds 1 to 6 mph in the morning
becoming upslope less than 5 mph.
* Ridges/upr slopes....East winds 2 to 7 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.....Southeast around 5 mph shifting to the
northwest in the afternoon.
* Ventilation Index...Low (25-43) increasing to low (52-104) in the
afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....35-42.
* Max humidity........57-72 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.......500 ft agl.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Low (25-37) decreasing to low (25-27) after
midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....61-69...except 55-61 ridges.
* Min humidity........26-35 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 5 to 10 mph.
* Ventilation Index...Low (29-47) increasing to moderate (279-347)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 37 to 46. Highs 62 to 72. Southwest
winds 10 to 20 mph.
.WEDNESDAY...Partly cloudy. Lows 42 to 50. Highs 60 to 70.
Southwest winds 2 to 7 mph.
.THURSDAY...Partly cloudy. Lows 41 to 48. Highs 63 to 72. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 42 to 49. Highs 59 to 68. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 39 to 47. Highs 61 to 70. Terrain
driven winds less than 5 mph.
$$
ORZ693-WAZ693-272315-
Canyon Grasslands of Wallowa County-
Southeast Washington Grande Ronde Valley-
408 AM PDT Sun Sep 27 2026
.TODAY...
* 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
southwest in the afternoon.
* Ventilation Index...Low (25-28) increasing to low to moderate
(32-250) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
* Min temperature.....36-43.
* 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.....North around 5 mph.
* Ventilation Index...Low (31-45) decreasing to low (25) after
midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....63-72...except 58-64 ridges.
* Min humidity........24-32 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.....Northwest 5 to 10 mph.
* Ventilation Index...Low (25-30) increasing to moderate (261-357)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 35 to 44. Highs 65 to 75. Southwest
winds 1 to 6 mph.
.WEDNESDAY...Mostly clear. Lows 40 to 50. Highs 64 to 73. West
winds 2 to 7 mph.
.THURSDAY...Mostly clear. Lows 40 to 48. Highs 67 to 77. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 41 to 50. Highs 63 to 72. Terrain
driven winds less than 5 mph.
.SATURDAY...Partly cloudy. Lows 38 to 47. Highs 63 to 73. Terrain
driven winds less than 5 mph.
$$
ORZ701-272315-
Eastern Columbia River Gorge of Oregon-
408 AM PDT Sun Sep 27 2026
.TODAY...
* Sky/weather.........Mostly cloudy then becoming mostly sunny.
* Max temperature.....64-69.
* Min humidity........29-36 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southeast winds 1 to 6 mph in the morning
becoming upslope less than 5 mph.
* Ridges/upr slopes....Southeast 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.....East around 10 mph.
* Ventilation Index...Low (35-65) increasing to moderate (202-242)
in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....39-44.
* Max humidity........64-79 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.....West around 5 mph.
* Ventilation Index...Low (25-41) decreasing to low (25-28) after
midnight.
.MONDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....68-73.
* Min humidity........25-38 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 1
to 6 mph in the afternoon. In the eastern Columbia River
Gorge, west winds 2 to 7 mph.
* Ridges/upr slopes....light less than 5 mph becoming northwest up
to 5 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......5000 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Low (28-50) increasing to moderate (243-359)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Partly cloudy. Lows 42 to 47. Highs 67 to 73. West
winds 10 to 20 mph.
.WEDNESDAY...Partly cloudy with a slight chance of showers. Lows
45 to 51. Highs 69 to 74. West winds 2 to 7 mph.
.THURSDAY...Partly cloudy. Lows 45 to 50. Highs 69 to 74. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 44 to 50. Highs 67 to 72. West
winds up to 5 mph.
.SATURDAY...Mostly clear. Lows 43 to 48. Highs 70 to 75.
Northeast winds 1 to 6 mph.
$$
ORZ702-272315-
East Slopes of the Mt. Hood National Forest-
408 AM PDT Sun Sep 27 2026
.TODAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
* Max temperature.....60-65...except 55-62 ridges.
* Min humidity........30-38 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northeast winds 2 to 7 mph in the morning
becoming upslope less than 5 mph.
* Ridges/upr slopes....East winds 5 to 11 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.....East 5 to 10 mph.
* Ventilation Index...Low (61-89) increasing to low to moderate
(159-205) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....35-42.
* 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.....Northwest around 5 mph.
* Ventilation Index...Low (25-34).
.MONDAY...
* Sky/weather.........Partly cloudy.
* Max temperature.....64-72...except 58-67 ridges.
* Min humidity........25-33 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.......4500 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Low (31-47) increasing to moderate (205-293)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Partly cloudy. Lows 38 to 44. Highs 57 to 71. West
winds up to 5 mph.
.WEDNESDAY...Partly cloudy with a slight chance of showers. Lows
43 to 48. Highs 60 to 72. Terrain driven winds less than 5 mph.
.THURSDAY...Partly cloudy. Lows 42 to 48. Highs 60 to 71. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 42 to 48. Highs 57 to 69. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 40 to 45. Highs 60 to 71. Terrain
driven winds less than 5 mph.
$$
ORZ695-272315-
Eagle Cap Wilderness-
408 AM PDT Sun Sep 27 2026
.TODAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....58-68...except 50-59 ridges.
* Min humidity........31-39 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 2 to 7 mph.
* Ridges/upr slopes....Southwest winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......5500 ft agl.
* Transport winds.....South 5 to 10 mph.
* Ventilation Index...Low (25-52) increasing to moderate to high
(203-515) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
* Min temperature.....38-43...except 33-39 ridges.
* Max humidity........63-77 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 north 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.
* Ventilation Index...Low (25-42) decreasing to low (25-27) after
midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....60-70...except 51-61 ridges.
* Min humidity........28-39 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 2
to 6 mph in the afternoon.
* Ridges/upr slopes....North winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......5500 ft agl.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Low (27-51) increasing to moderate (276-350)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 34 to 41. Highs 57 to 71. West
winds 1 to 6 mph.
.WEDNESDAY...Mostly clear. Lows 38 to 46. Highs 57 to 70. West
winds 1 to 5 mph.
.THURSDAY...Mostly clear. Lows 39 to 46. Highs 59 to 73.
Southwest winds 1 to 6 mph.
.FRIDAY...Partly cloudy. Lows 40 to 47. Highs 56 to 69. West
winds 1 to 5 mph.
.SATURDAY...Mostly clear. Lows 37 to 44. Highs 56 to 70.
Northwest winds 1 to 5 mph.
$$
ORZ694-272315-
Grande Ronde Valley of Oregon-
408 AM PDT Sun Sep 27 2026
.TODAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....64-69.
* Min humidity........29-34 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....North winds 1 to 5 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......3500 ft agl.
* Transport winds.....Southeast around 5 mph.
* Ventilation Index...Low (25-28) increasing to low (58-180) in the
afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy. Patchy frost after midnight.
* Min temperature.....32-38.
* Max humidity........74-89 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 becoming
northwest 2 to 5 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Low (25-44).
.MONDAY...
* Sky/weather.........Mostly sunny. Widespread frost in the
morning.
* Max temperature.....67-72.
* Min humidity........24-29 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 2 to 7 mph.
* Ridges/upr slopes....Northwest winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......5500 ft agl.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Low (25-53) increasing to moderate (298-382)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 32 to 39. Highs 71 to 76. West
winds 2 to 7 mph.
.WEDNESDAY...Mostly clear. Lows 38 to 45. Highs 70 to 75.
Northwest winds 1 to 5 mph.
.THURSDAY...Mostly clear. Lows 38 to 44. Highs 73 to 78.
Southeast winds 2 to 7 mph.
.FRIDAY...Partly cloudy. Lows 40 to 45. Highs 69 to 74. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 36 to 42. Highs 70 to 75.
Northwest winds up to 5 mph.
$$
ORZ699-272315-
Western Forested Blue Mountains-
408 AM PDT Sun Sep 27 2026
.TODAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....59-66...except 53-61 ridges.
* Min humidity........28-36 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northeast winds 1 to 5 mph in the morning
becoming upslope less than 5 mph.
* Ridges/upr slopes....East 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.....East around 5 mph shifting to the south in
the afternoon.
* Ventilation Index...Low (25-48) increasing to low to moderate
(90-360) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....34-39.
* Max humidity........60-74 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.
* Ventilation Index...Low (31-59) decreasing to low (25-28) after
midnight.
.MONDAY...
* Sky/weather.........Mostly sunny. Widespread frost in the
morning.
* Max temperature.....63-69...except 57-63 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.......6500 ft agl.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Low (25-44) increasing to moderate (302-406)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 35 to 41. Highs 63 to 71. Southwest
winds up to 5 mph.
.WEDNESDAY...Mostly clear. Lows 39 to 45. Highs 62 to 71. Terrain
driven winds less than 5 mph.
.THURSDAY...Mostly clear. Lows 39 to 45. Highs 64 to 73. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 40 to 46. Highs 60 to 69. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 37 to 43. Highs 61 to 70. Terrain
driven winds less than 5 mph.
$$
ORZ696-272315-
John Day Valley-
408 AM PDT Sun Sep 27 2026
.TODAY...
* 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....East 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.....East around 5 mph shifting to the west in the
afternoon.
* Ventilation Index...Low (25-36) increasing to low to moderate
(41-283) in the afternoon.
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....35-40.
* Max humidity........58-70 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.......Near surface.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Low (59-83) decreasing to low (25) after
midnight.
.MONDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....64-72...except 60-65 ridges.
* Min humidity........19-24 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.......5500 ft agl.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Low (25-29) increasing to moderate (268-332)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 38 to 43. Highs 67 to 76. Terrain
driven winds less than 5 mph.
.WEDNESDAY...Mostly clear. Lows 41 to 47. Highs 67 to 76. West
winds up to 5 mph.
.THURSDAY...Mostly clear. Lows 42 to 47. Highs 69 to 78. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 42 to 48. Highs 64 to 73. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 39 to 45. Highs 66 to 75. Terrain
driven winds less than 5 mph.
$$
ORZ700-272315-
Central Mountains of Oregon-
408 AM PDT Sun Sep 27 2026
.TODAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
* Max temperature.....61-66...except 55-61 ridges.
* Min humidity........24-34 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 1 to 6 mph.
* Ridges/upr slopes....East 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.....Northeast around 5 mph shifting to the west
in the afternoon.
* Ventilation Index...Low (25-43) increasing to low to moderate
(120-248) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....30-38.
* Max humidity........60-75 percent...except 57-63 percent ridges.
* Humidity recovery...Good...except Moderate ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds up to 5 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.....Northwest 5 to 10 mph.
* Ventilation Index...Low (77-145) decreasing to low (25-31) after
midnight.
.MONDAY...
* Sky/weather.........Mostly sunny. Widespread frost in the
morning.
* Max temperature.....65-70...except 59-64 ridges.
* Min humidity........17-23 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 2
to 5 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......6000 ft agl.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Low (25-37) increasing to moderate (256-374)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 32 to 42. Highs 68 to 74. Southwest
winds 1 to 6 mph.
.WEDNESDAY...Mostly clear. Lows 35 to 45. Highs 69 to 74. West
winds 1 to 6 mph.
.THURSDAY...Mostly clear. Lows 37 to 45. Highs 70 to 76. South
winds up to 5 mph.
.FRIDAY...Partly cloudy. Lows 37 to 45. Highs 65 to 71. West
winds 1 to 6 mph.
.SATURDAY...Mostly clear. Lows 34 to 43. Highs 67 to 73.
Northeast winds 1 to 6 mph.
$$
ORZ703-272315-
Warm Springs Reservation-
408 AM PDT Sun Sep 27 2026
.TODAY...
* Sky/weather.........Mostly cloudy then becoming mostly sunny.
* Max temperature.....61-67...except 54-59 ridges.
* Min humidity........29-38 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northeast winds 2 to 7 mph.
* Ridges/upr slopes....Northeast winds 3 to 8 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 (57-83) increasing to low to moderate
(159-237) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....36-41.
* Max humidity........62-72 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.......500 ft agl.
* Transport winds.....Northwest around 5 mph.
* Ventilation Index...Low (49-95) decreasing to low (25) after
midnight.
.MONDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....67-74...except 57-64 ridges.
* Min humidity........22-29 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming west 1 to 5
mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming west 1 to 5
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......6000 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Low (26-46) increasing to moderate (261-339)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Partly cloudy. Lows 40 to 45. Highs 64 to 75. West
winds 2 to 7 mph.
.WEDNESDAY...Partly cloudy. Lows 44 to 49. Highs 65 to 75. West
winds 2 to 7 mph.
.THURSDAY...Partly cloudy. Lows 44 to 49. Highs 65 to 74.
Northwest winds up to 5 mph.
.FRIDAY...Partly cloudy. Lows 43 to 48. Highs 62 to 71. West
winds 1 to 6 mph.
.SATURDAY...Mostly clear. Lows 41 to 46. Highs 64 to 73. East
winds 1 to 6 mph.
$$
ORZ704-272315-
Northern Deschutes National Forest-
408 AM PDT Sun Sep 27 2026
.TODAY...
* Sky/weather.........Mostly cloudy then becoming mostly sunny.
* Max temperature.....61-66...except 53-59 ridges.
* Min humidity........29-38 percent...except 35-50 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 1 to 5 mph in the morning
becoming upslope less than 5 mph.
* Ridges/upr slopes....Northeast winds 2 to 7 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 around 5 mph.
* Ventilation Index...Low (34-60) increasing to low (110-174) in
the afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear. Areas of frost after midnight.
* Min temperature.....30-37.
* Max humidity........69-84 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.....Northwest around 5 mph.
* Ventilation Index...Low (63-93) decreasing to low (25) after
midnight.
.MONDAY...
* Sky/weather.........Mostly sunny then becoming partly cloudy.
Widespread frost in the morning.
* Max temperature.....67-72...except 56-64 ridges.
* Min humidity........22-28 percent...except 25-39 percent ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* 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.......6000 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Low (28-38) increasing to moderate (270-330)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Partly cloudy. Lows 33 to 40. Highs 60 to 72. West
winds 2 to 7 mph.
.WEDNESDAY...Mostly clear. Lows 36 to 43. Highs 63 to 73. West
winds 1 to 6 mph.
.THURSDAY...Partly cloudy. Lows 37 to 44. Highs 62 to 72. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 37 to 44. Highs 58 to 69. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 34 to 42. Highs 62 to 71. Terrain
driven winds less than 5 mph.
$$
ORZ705-272315-
Southern Deschutes National Forest-
408 AM PDT Sun Sep 27 2026
.TODAY...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
* Max temperature.....60-66...except 52-61 ridges.
* Min humidity........27-40 percent.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 1 to 6 mph in the morning
becoming upslope less than 5 mph.
* Ridges/upr slopes....East winds 1 to 6 mph in the morning
becoming 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 (27-49) increasing to low (92-180) in the
afternoon.
.TONIGHT...
* Sky/weather.........Mostly clear. Widespread frost after
midnight.
* Min temperature.....27-35.
* Max humidity........75-90 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 5 to 10 mph.
* Ventilation Index...Low (94-168) decreasing to low (25-31) after
midnight.
.MONDAY...
* Sky/weather.........Mostly sunny. Widespread frost in the
morning.
* Max temperature.....64-69...except 55-63 ridges.
* Min humidity........19-32 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.....Northwest 5 to 10 mph.
* Ventilation Index...Low (25-37) increasing to moderate (286-374)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 29 to 38. Highs 63 to 72. West
winds up to 5 mph.
.WEDNESDAY...Mostly clear. Lows 31 to 40. Highs 65 to 74. Terrain
driven winds less than 5 mph.
.THURSDAY...Mostly clear. Lows 33 to 41. Highs 65 to 74. Terrain
driven winds less than 5 mph.
.FRIDAY...Partly cloudy. Lows 33 to 41. Highs 61 to 70. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 30 to 39. Highs 65 to 72. Terrain
driven winds less than 5 mph.
$$
ORZ697-272315-
Central Blue Mountains-
408 AM PDT Sun Sep 27 2026
.TODAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....61-66...except 56-62 ridges.
* Min humidity........28-33 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southeast winds 2 to 7 mph in the morning
becoming upslope less than 5 mph.
* Ridges/upr slopes....Southeast winds 3 to 8 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......6500 ft agl.
* Transport winds.....South 10 to 15 mph.
* Ventilation Index...Low (38-68) increasing to moderate to high
(456-660) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy then becoming mostly clear.
Areas of frost after midnight.
* Min temperature.....32-38.
* Max humidity........64-77 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 5 to 10 mph.
* Ventilation Index...Low (67-97) decreasing to low (25-32) after
midnight.
.MONDAY...
* Sky/weather.........Mostly sunny. Widespread frost in the
morning.
* Max temperature.....63-68...except 58-64 ridges.
* Min humidity........22-28 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northwest 2
to 5 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.......7500 ft agl.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Low (31-61) increasing to moderate (362-468)
in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 33 to 39. Highs 64 to 71. West
winds 1 to 6 mph.
.WEDNESDAY...Mostly clear. Lows 36 to 43. Highs 64 to 71.
Northwest winds up to 5 mph.
.THURSDAY...Mostly clear. Lows 37 to 44. Highs 67 to 74. South
winds up to 5 mph.
.FRIDAY...Partly cloudy. Lows 38 to 45. Highs 63 to 69. Terrain
driven winds less than 5 mph.
.SATURDAY...Mostly clear. Lows 34 to 42. Highs 64 to 71. Terrain
driven winds less than 5 mph.
$$
ORZ698-272315-
Southern Blue Mountains-
408 AM PDT Sun Sep 27 2026
.TODAY...
* Sky/weather.........Mostly cloudy.
* Max temperature.....62-67...except 57-62 ridges.
* Min humidity........25-30 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southeast winds 2 to 7 mph in the morning
becoming upslope less than 5 mph.
* Ridges/upr slopes....Southeast winds 4 to 9 mph in the morning
becoming 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 south in
the afternoon.
* Ventilation Index...Low (41-71) increasing to moderate to high
(462-638) in the afternoon.
.TONIGHT...
* Sky/weather.........Mostly cloudy then becoming mostly clear.
* Min temperature.....32-39.
* Max humidity........65-74 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 5 to 10 mph.
* Ventilation Index...Low (28-84) decreasing to low (31-39) after
midnight.
.MONDAY...
* Sky/weather.........Mostly sunny. Widespread frost in the
morning.
* Max temperature.....64-69...except 59-64 ridges.
* Min humidity........18-23 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 5 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7500 ft agl.
* Transport winds.....Northwest around 10 mph.
* Ventilation Index...Low (45-65) increasing to moderate to high
(454-534) in the afternoon.
.Forecast days 3 through 7......
.TUESDAY...Mostly clear. Lows 33 to 39. Highs 69 to 74. Northwest
winds 1 to 6 mph.
.WEDNESDAY...Mostly clear. Lows 36 to 43. Highs 69 to 75.
Northwest winds 1 to 6 mph.
.THURSDAY...Mostly clear. Lows 37 to 44. Highs 72 to 77.
Northeast winds up to 5 mph.
.FRIDAY...Partly cloudy. Lows 38 to 45. Highs 67 to 73. West
winds up to 5 mph.
.SATURDAY...Mostly clear. Lows 34 to 42. Highs 68 to 73. North
winds 1 to 6 mph.
$$
.8-14 DAY OUTLOOK for Sunday October 4 through Saturday October 10...
A greater chance of above normal temperatures and below normal
precipitation.
$$