Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
439
FNUS56 KPDT 232025
FWFPDT
Fire Weather Planning Forecast for NE Oregon and SE Washington
National Weather Service Pendleton OR
125 PM PDT Sun Aug 23 2026
.DISCUSSION...Breezy westerly winds through the Cascade gaps
today. A ridge of high pressure will develop late tonight and
persist into mid-week, resulting in a warming and drying trend
with increasing mixing heights. Very low (5-15%) chances of
showers and thunderstorms Monday PM for the far southern Blue
Mountains and Tuesday PM for the northern Blue Mountains. Breezy
winds and low RH through the Cascade gaps and Columbia Basin on
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. ***
WAZ695-241415-
East Washington South Central Cascade Mountains-
125 PM PDT Sun Aug 23 2026
.TONIGHT...
* Sky/weather.........Mostly clear. Areas of smoke in the evening.
Patchy smoke after midnight.
* Min temperature.....46-52.
* Max humidity........68-83 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 1 to 6 mph.
* Ridges/upr slopes....Northwest winds 1 to 6 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Low to moderate (114-220) decreasing to low
(25-33) after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny. Patchy smoke.
* Max temperature.....77-86...except 69-77 ridges.
* Min humidity........26-37 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southeast winds 2 to 7 mph.
* Ridges/upr slopes....Southeast winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......5500 ft agl.
* Transport winds.....Southeast 5 to 10 mph.
* Ventilation Index...Low (37-61) increasing to moderate (308-404)
in the afternoon.
.MONDAY NIGHT...
* Sky/weather.........Partly cloudy. Patchy smoke.
* Min temperature.....53-59.
* Max humidity........42-57 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 1
to 6 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....Southeast around 5 mph.
* Ventilation Index...Low (97-149) decreasing to low (25-29) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly sunny. Patchy smoke in the morning.
* Max temperature.....82-91...except 73-82 ridges.
* Min humidity........21-30 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming southeast 2
to 7 mph in the afternoon.
* Ridges/upr slopes....East winds 1 to 6 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......9500 ft agl.
* Transport winds.....East 5 to 10 mph.
* Ventilation Index...Low (25-30) increasing to moderate to high
(433-591) in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...Mostly clear. Lows 53 to 59. Highs 70 to 85. West
winds 2 to 7 mph.
.THURSDAY...Cooler. Partly cloudy. Lows 46 to 53. Highs 59 to 74.
West winds 4 to 9 mph.
.FRIDAY...Mostly clear. Lows 43 to 50. Highs 61 to 75. West winds
3 to 8 mph.
.SATURDAY...Partly cloudy. Lows 43 to 49. Highs 58 to 72. West
winds 3 to 8 mph.
.SUNDAY...Mostly clear. Lows 41 to 47. Highs 62 to 76. West winds
2 to 7 mph.
$$
WAZ690-241415-
Kittitas Valley-
125 PM PDT Sun Aug 23 2026
.TONIGHT...
* Sky/weather.........Mostly clear. Patchy smoke.
* Min temperature.....52-59.
* Max humidity........60-75 percent.
* Humidity recovery...Good...except Moderate ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 4 to 9 mph.
* Ridges/upr slopes....Northwest winds 4 to 9 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....Northwest 10 to 15 mph.
* Ventilation Index...Moderate (231-295) decreasing to low (31-43)
after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny. Patchy smoke.
* Max temperature.....82-88...except 72-82 ridges.
* Min humidity........24-29 percent.
* 20-foot winds.......
* Valleys/lwr slopes...East winds up to 5 mph.
* Ridges/upr slopes....East winds 1 to 6 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......6500 ft agl.
* Transport winds.....Northeast around 5 mph.
* Ventilation Index...Low (34-68) increasing to moderate (273-375)
in the afternoon.
.MONDAY NIGHT...
* Sky/weather.........Partly cloudy. Patchy smoke.
* Min temperature.....58-64.
* Max humidity........39-54 percent.
* Humidity recovery...Moderate...except Poor 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 (66-134) decreasing to low (27-33) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly sunny. Patchy smoke in the morning.
* Max temperature.....88-94...except 78-88 ridges.
* Min humidity........18-23 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming east 1 to 6
mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming east 2 to 6
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7500 ft agl.
* Transport winds.....North around 10 mph shifting to the east in
the afternoon.
* Ventilation Index...Low (29-43) increasing to moderate (359-453)
in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...Mostly clear. Lows 60 to 66. Highs 85 to 92. West
winds 3 to 8 mph.
.THURSDAY...Mostly clear. Lows 55 to 60. Highs 75 to 84. West
winds 5 to 11 mph.
.FRIDAY...Mostly clear. Lows 50 to 56. Highs 75 to 83. Northwest
winds 5 to 11 mph.
.SATURDAY...Mostly clear. Lows 50 to 55. Highs 73 to 80. West
winds 5 to 11 mph.
.SUNDAY...Mostly clear. Lows 48 to 53. Highs 75 to 82. West winds
4 to 9 mph.
$$
WAZ694-241415-
Yakama Alpine District-
125 PM PDT Sun Aug 23 2026
.TONIGHT...
* Sky/weather.........Mostly clear. Patchy smoke.
* Min temperature.....47-55.
* Max humidity........60-75 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 1 to 6 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.....North around 5 mph.
* Ventilation Index...Low (78-140) decreasing to low (25-28) after
midnight.
.MONDAY...
* Sky/weather.........Mostly sunny. Patchy smoke.
* Max temperature.....81-89...except 71-83 ridges.
* Min humidity........24-33 percent.
* 20-foot winds.......
* Valleys/lwr slopes...East winds 1 to 6 mph.
* Ridges/upr slopes....East winds 1 to 6 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......6000 ft agl.
* Transport winds.....East 5 to 10 mph.
* Ventilation Index...Low (36-60) increasing to moderate (260-358)
in the afternoon.
.MONDAY NIGHT...
* Sky/weather.........Partly cloudy. Patchy smoke.
* Min temperature.....53-61.
* Max humidity........39-54 percent.
* Humidity recovery...Moderate...except Poor 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 around 5 mph.
* Ventilation Index...Low (61-103) decreasing to low (25-30) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly sunny. Patchy smoke in the morning.
* Max temperature.....85-92...except 75-87 ridges.
* Min humidity........20-28 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph becoming southeast 2
to 5 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......9000 ft agl.
* Transport winds.....Northeast around 5 mph shifting to the
southeast in the afternoon.
* Ventilation Index...Low (25-27) increasing to moderate (267-409)
in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...Mostly clear. Lows 51 to 60. Highs 74 to 87. West
winds 3 to 8 mph.
.THURSDAY...Mostly clear. Lows 46 to 54. Highs 66 to 80. West
winds 4 to 10 mph.
.FRIDAY...Mostly clear. Lows 41 to 50. Highs 67 to 80. West winds
3 to 8 mph.
.SATURDAY...Mostly clear. Lows 41 to 50. Highs 64 to 78. West
winds 3 to 8 mph.
.SUNDAY...Mostly clear. Lows 39 to 48. Highs 67 to 80. West winds
2 to 7 mph.
$$
ORZ691-WAZ691-241415-
Lower Columbia Basin of Oregon-Lower Columbia Basin of Washington-
125 PM PDT Sun Aug 23 2026
.TONIGHT...
* Sky/weather.........Mostly clear. Patchy smoke in the evening.
Areas of smoke after midnight.
* Min temperature.....53-58.
* Max humidity........60-75 percent.
* Humidity recovery...Good...except Moderate ridges.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 2 to 7 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....Northwest winds 2 to 7 mph in the evening
becoming light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....Northwest 5 to 10 mph.
* Ventilation Index...Low to moderate (112-216) decreasing to low
(25-31) after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny. Patchy smoke.
* Max temperature.....86-93...except 80-87 ridges.
* Min humidity........19-27 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northeast winds 3 to 8 mph.
* Ridges/upr slopes....Northeast winds 3 to 8 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......6000 ft agl.
* Transport winds.....Northeast 5 to 10 mph.
* Ventilation Index...Low (29-53) increasing to moderate (263-397)
in the afternoon.
.MONDAY NIGHT...
* Sky/weather.........Partly cloudy. Patchy smoke.
* Min temperature.....58-63.
* Max humidity........41-56 percent.
* Humidity recovery...Moderate...except Poor ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Northeast winds 2 to 7 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....North winds 2 to 7 mph in the evening
becoming light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....Northeast 5 to 10 mph.
* Ventilation Index...Low (103-169) decreasing to low (25-33) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly sunny. Areas of smoke in the morning.
* Max temperature.....90-96...except 85-91 ridges.
* Min humidity........17-23 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.......9500 ft agl.
* Transport winds.....Northwest around 5 mph shifting to the south
in the afternoon.
* Ventilation Index...Low (25-33) increasing to low to moderate
(76-308) in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...Mostly clear. Lows 59 to 65. Highs 85 to 94.
Southwest winds 4 to 9 mph.
.THURSDAY...Mostly clear. Lows 55 to 61. Highs 78 to 87. West
winds 7 to 13 mph.
.FRIDAY...Mostly clear. Lows 51 to 56. Highs 78 to 85. West winds
5 to 11 mph.
.SATURDAY...Mostly clear. Lows 50 to 55. Highs 76 to 82. West
winds 4 to 10 mph.
.SUNDAY...Mostly clear. Lows 48 to 53. Highs 78 to 84. West winds
4 to 9 mph.
$$
ORZ692-WAZ692-241415-
Northern Blue Mountains of Oregon-Blue Mountains of Washington-
125 PM PDT Sun Aug 23 2026
.TONIGHT...
* Sky/weather.........Mostly clear. Patchy smoke.
* Min temperature.....47-55.
* Max humidity........50-65 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...West winds up to 5 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....Northwest 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.....West around 10 mph shifting to the east after
midnight.
* Ventilation Index...Low (116-166) decreasing to low (25-26) after
midnight.
.MONDAY...
* Sky/weather.........Mostly sunny. Patchy smoke.
* Max temperature.....83-90...except 76-82 ridges.
* Min humidity........17-24 percent.
* 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.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7000 ft agl.
* Transport winds.....East around 5 mph shifting to the southwest
in the afternoon.
* Ventilation Index...Low (32-58) increasing to moderate (202-312)
in the afternoon.
.MONDAY NIGHT...
* Sky/weather.........Partly cloudy. Patchy smoke.
* Min temperature.....53-62.
* Max humidity........38-53 percent.
* Humidity recovery...Moderate...except Poor ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Northeast winds 1 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.....East 5 to 10 mph.
* Ventilation Index...Low (91-129) decreasing to low (27-35) after
midnight.
.TUESDAY...
* Sky/weather.........Partly cloudy then becoming mostly sunny.
* Max temperature.....86-94...except 81-86 ridges.
* Min humidity........19-24 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.......12500 ft agl.
* Transport winds.....South around 10 mph.
* Ventilation Index...Low (25-34) increasing to moderate to very
high (397-737) in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...Partly cloudy. Lows 55 to 65. Highs 80 to 90.
Southwest winds up to 5 mph.
.THURSDAY...Mostly clear. Lows 50 to 59. Highs 72 to 82. West
winds 1 to 6 mph.
.FRIDAY...Mostly clear. Lows 46 to 55. Highs 71 to 81. West winds
1 to 6 mph.
.SATURDAY...Mostly clear. Lows 44 to 53. Highs 68 to 78. West
winds 1 to 6 mph.
.SUNDAY...Mostly clear. Lows 42 to 51. Highs 70 to 80. West winds
1 to 6 mph.
$$
ORZ693-WAZ693-241415-
Canyon Grasslands of Wallowa County-
Southeast Washington Grande Ronde Valley-
125 PM PDT Sun Aug 23 2026
.TONIGHT...
* Sky/weather.........Mostly clear. Patchy smoke.
* Min temperature.....45-56.
* Max humidity........52-67 percent...except 47-54 percent ridges.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 1 to 6 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....Northwest winds 2 to 7 mph in the evening
becoming light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....Northwest around 10 mph shifting to the east
after midnight.
* Ventilation Index...Low to moderate (161-205) decreasing to low
(25) after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny then becoming partly cloudy.
* Max temperature.....83-91...except 76-83 ridges.
* Min humidity........14-19 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph becoming northeast 1
to 5 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8000 ft agl.
* Transport winds.....East around 5 mph shifting to the southwest
in the afternoon.
* Ventilation Index...Low (26-38) increasing to moderate (215-381)
in the afternoon.
.MONDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
* Min temperature.....52-62.
* Max humidity........42-57 percent...except 38-46 percent ridges.
* Humidity recovery...Moderate...except Poor ridges.
* 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 6 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....East around 5 mph.
* Ventilation Index...Low (102-160) decreasing to low (25-28) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....88-97...except 81-88 ridges.
* Min humidity........15-20 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming south 1 to
6 mph in the afternoon.
* Ridges/upr slopes....South winds 3 to 8 mph.
* CWR.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......13500 ft agl.
* Transport winds.....South 5 to 10 mph.
* Ventilation Index...Low (25-35) increasing to high to very high
(599-983) in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...Partly cloudy. Lows 54 to 65. Highs 86 to 95. South
winds 3 to 8 mph.
.THURSDAY...Mostly clear. Lows 51 to 61. Highs 78 to 88. West
winds 2 to 7 mph.
.FRIDAY...Mostly clear. Lows 47 to 57. Highs 77 to 86. West winds
1 to 6 mph.
.SATURDAY...Mostly clear. Lows 44 to 55. Highs 73 to 83. West
winds 2 to 7 mph.
.SUNDAY...Mostly clear. Lows 41 to 52. Highs 75 to 84. West winds
1 to 6 mph.
$$
ORZ701-241415-
Eastern Columbia River Gorge of Oregon-
125 PM PDT Sun Aug 23 2026
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....51-57.
* Max humidity........61-76 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 3 to 8 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....Northwest winds 1 to 6 mph in the evening
becoming light winds less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....West 5 to 10 mph.
* Ventilation Index...Low (132-176) decreasing to low (25) after
midnight.
.MONDAY...
* Sky/weather.........Mostly sunny. Patchy smoke.
* Max temperature.....86-91.
* Min humidity........23-28 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming east 2 to 6
mph in the afternoon. In the eastern Columbia River Gorge,
east winds 2 to 7 mph.
* Ridges/upr slopes....light less than 5 mph becoming east 2 to 5
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......5000 ft agl.
* Transport winds.....East 5 to 10 mph.
* Ventilation Index...Low (35-67) increasing to moderate (326-422)
in the afternoon.
.MONDAY NIGHT...
* Sky/weather.........Partly cloudy. Patchy smoke in the evening,
then areas of smoke after midnight.
* Min temperature.....57-62.
* Max humidity........42-57 percent.
* Humidity recovery...Moderate...except Poor ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph after
midnight. Drainage winds less than 5 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.....East around 10 mph shifting to the west after
midnight.
* Ventilation Index...Low (107-135) decreasing to low (25-30) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly sunny. Areas of smoke in the morning.
* Max temperature.....89-94.
* Min humidity........21-33 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph in the afternoon.
Upslope less than 5 mph in the morning.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......7500 ft agl.
* Transport winds.....West around 5 mph shifting to the south in
the afternoon.
* Ventilation Index...Low (25) increasing to low to moderate
(63-239) in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...Mostly clear. Lows 54 to 61. Highs 81 to 87. West
winds 4 to 9 mph.
.THURSDAY...Mostly clear. Lows 51 to 57. Highs 76 to 81. West
winds 6 to 12 mph.
.FRIDAY...Mostly clear. Lows 47 to 54. Highs 76 to 81. West winds
5 to 11 mph.
.SATURDAY...Mostly clear. Lows 46 to 53. Highs 74 to 79. West
winds 5 to 11 mph.
.SUNDAY...Mostly clear. Lows 45 to 51. Highs 77 to 82. West winds
3 to 8 mph.
$$
ORZ702-241415-
East Slopes of the Mt. Hood National Forest-
125 PM PDT Sun Aug 23 2026
.TONIGHT...
* Sky/weather.........Mostly clear. Patchy smoke.
* Min temperature.....48-55.
* 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.....Northwest around 10 mph shifting to the east
after midnight.
* Ventilation Index...Low (81-133) decreasing to low (25-30) after
midnight.
.MONDAY...
* Sky/weather.........Mostly sunny then becoming partly cloudy.
Patchy smoke.
* Max temperature.....82-87...except 76-84 ridges.
* Min humidity........22-29 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.......4500 ft agl.
* Transport winds.....East around 10 mph.
* Ventilation Index...Low (53-83) increasing to moderate (283-347)
in the afternoon.
.MONDAY NIGHT...
* Sky/weather.........Partly cloudy. Patchy smoke.
* Min temperature.....55-63.
* Max humidity........33-48 percent.
* Humidity recovery...Poor.
* 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 (108-128) decreasing to low (26-32) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly sunny then becoming partly cloudy.
Patchy smoke in the morning.
* Max temperature.....87-92...except 80-88 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.......8000 ft agl.
* Transport winds.....Southeast 5 to 10 mph.
* Ventilation Index...Low (25-26) increasing to moderate (203-359)
in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...Mostly clear. Lows 51 to 59. Highs 72 to 86. West
winds 1 to 6 mph.
.THURSDAY...Mostly clear. Lows 47 to 54. Highs 65 to 79. West
winds 2 to 7 mph.
.FRIDAY...Mostly clear. Lows 42 to 50. Highs 66 to 79. West winds
1 to 6 mph.
.SATURDAY...Mostly clear. Lows 42 to 49. Highs 63 to 77. West
winds 1 to 6 mph.
.SUNDAY...Mostly clear. Lows 41 to 48. Highs 67 to 79. West winds
1 to 6 mph.
$$
ORZ695-241415-
Eagle Cap Wilderness-
125 PM PDT Sun Aug 23 2026
.TONIGHT...
* Sky/weather.........Mostly clear. Patchy smoke.
* Min temperature.....46-53.
* Max humidity........45-58 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 1 to 6 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....Northwest winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......500 ft agl.
* Transport winds.....North 5 to 10 mph.
* Ventilation Index...Low (110-192) decreasing to low (25-32) after
midnight.
.MONDAY...
* Sky/weather.........Mostly sunny then becoming partly cloudy.
Patchy smoke.
* Max temperature.....80-90...except 69-80 ridges.
* Min humidity........15-22 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph becoming southwest 2
to 6 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8500 ft agl.
* Transport winds.....Southwest 5 to 10 mph.
* Ventilation Index...Low (25-56) increasing to moderate to high
(337-665) in the afternoon.
.MONDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Patchy smoke in the evening.
* Min temperature.....53-60.
* Max humidity........38-50 percent.
* Humidity recovery...Moderate...except Poor ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph becoming east
1 to 5 mph after midnight.
* Ridges/upr slopes....light winds less than 5 mph becoming south 3
to 8 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......Near surface.
* Transport winds.....East 5 to 10 mph.
* Ventilation Index...Low (48-116) decreasing to low (25-40) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....83-93...except 71-83 ridges.
* Min humidity........18-26 percent.
* 20-foot winds.......
* Valleys/lwr slopes...South winds 3 to 8 mph.
* Ridges/upr slopes....South winds 4 to 9 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......12000 ft agl.
* Transport winds.....South 10 to 15 mph.
* Ventilation Index...Low (33-75) increasing to very high
(746-1034) in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...Partly cloudy. Lows 55 to 62. Highs 75 to 90. South
winds 4 to 10 mph.
.THURSDAY...Partly cloudy. Lows 51 to 58. Highs 70 to 85. West
winds 5 to 11 mph.
.FRIDAY...Mostly clear. Lows 47 to 54. Highs 69 to 83. Northwest
winds 2 to 7 mph.
.SATURDAY...Mostly clear. Lows 45 to 52. Highs 65 to 79. West
winds 2 to 7 mph.
.SUNDAY...Mostly clear. Lows 41 to 49. Highs 66 to 80. West winds
2 to 7 mph.
$$
ORZ694-241415-
Grande Ronde Valley of Oregon-
125 PM PDT Sun Aug 23 2026
.TONIGHT...
* Sky/weather.........Mostly clear. Patchy smoke after midnight.
* Min temperature.....44-50.
* Max humidity........62-77 percent.
* Humidity recovery...Good.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 2 to 7 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....Northwest winds 3 to 8 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.....North 5 to 10 mph.
* Ventilation Index...Low to moderate (158-246) decreasing to low
(25-33) after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny then becoming partly cloudy.
Patchy smoke.
* Max temperature.....88-93.
* Min humidity........13-18 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......6500 ft agl.
* Transport winds.....North around 5 mph shifting to the south in
the afternoon.
* Ventilation Index...Low (25-30) increasing to moderate (200-270)
in the afternoon.
.MONDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Patchy smoke.
* Min temperature.....52-57.
* Max humidity........51-62 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.......500 ft agl.
* Transport winds.....Northeast around 5 mph.
* Ventilation Index...Low (51-113) decreasing to low (25-26) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....92-97.
* Min humidity........15-20 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming south 4 to
9 mph in the afternoon.
* Ridges/upr slopes....South winds 2 to 5 mph increasing to 7 to 12
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11500 ft agl.
* Transport winds.....South 10 to 15 mph.
* Ventilation Index...Low (33-49) increasing to very high (755-865)
in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...Partly cloudy. Lows 55 to 60. Highs 91 to 96. South
winds 2 to 7 mph.
.THURSDAY...Mostly clear. Lows 50 to 55. Highs 84 to 89.
Northwest winds 4 to 9 mph.
.FRIDAY...Mostly clear. Lows 46 to 51. Highs 83 to 88. Northwest
winds 4 to 9 mph.
.SATURDAY...Mostly clear. Lows 43 to 49. Highs 79 to 84.
Northwest winds 3 to 8 mph.
.SUNDAY...Mostly clear. Lows 40 to 46. Highs 80 to 85. Northwest
winds 2 to 7 mph.
$$
ORZ699-241415-
Western Forested Blue Mountains-
125 PM PDT Sun Aug 23 2026
.TONIGHT...
* Sky/weather.........Mostly clear. Patchy smoke after midnight.
* Min temperature.....45-52.
* Max humidity........49-64 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 10 mph shifting to the
northeast after midnight.
* Ventilation Index...Low to moderate (140-206) decreasing to low
(25-28) after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny then becoming partly cloudy.
Patchy smoke.
* Max temperature.....84-90...except 77-85 ridges.
* Min humidity........14-20 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northeast 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.......10500 ft agl.
* Transport winds.....Southeast 5 to 10 mph.
* Ventilation Index...Low (28-46) increasing to moderate to very
high (343-801) in the afternoon.
.MONDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Patchy smoke.
* Min temperature.....52-58.
* Max humidity........40-53 percent.
* Humidity recovery...Moderate...except Poor ridges.
* 20-foot winds.......
* Valleys/lwr slopes...Northeast winds 1 to 6 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.......Near surface.
* Transport winds.....Northeast around 10 mph shifting to the
southeast after midnight.
* Ventilation Index...Low (56-180) decreasing to low (25-34) after
midnight.
.TUESDAY...
* Sky/weather.........Mostly sunny then becoming partly cloudy.
* Max temperature.....87-93...except 80-87 ridges.
* Min humidity........15-20 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming southwest 1
to 6 mph in the afternoon.
* Ridges/upr slopes....South winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......12500 ft agl.
* Transport winds.....Southeast around 5 mph increasing to south
around 15 mph in the afternoon.
* Ventilation Index...Low (25-34) increasing to very high
(818-1050) in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...Partly cloudy. Lows 53 to 59. Highs 81 to 89.
Southwest winds up to 5 mph.
.THURSDAY...Mostly clear. Lows 48 to 54. Highs 75 to 84. West
winds up to 5 mph.
.FRIDAY...Mostly clear. Lows 45 to 51. Highs 73 to 83. Northwest
winds up to 5 mph.
.SATURDAY...Mostly clear. Lows 43 to 49. Highs 70 to 79. West
winds up to 5 mph.
.SUNDAY...Mostly clear. Lows 40 to 47. Highs 71 to 80. West winds
1 to 6 mph.
$$
ORZ696-241415-
John Day Valley-
125 PM PDT Sun Aug 23 2026
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....49-54.
* Max humidity........46-55 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 1 to 5 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....North 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 5 to 10 mph.
* Ventilation Index...Low to moderate (169-245) decreasing to low
(25-28) after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny then becoming partly cloudy.
* Max temperature.....86-94...except 81-86 ridges.
* Min humidity........12-17 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 south 2 to 7
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11000 ft agl.
* Transport winds.....Southeast 5 to 10 mph.
* Ventilation Index...Low (25-38) increasing to moderate to very
high (404-812) in the afternoon.
.MONDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
Patchy smoke.
* Min temperature.....54-59.
* Max humidity........43-53 percent.
* Humidity recovery...Moderate...except Poor 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 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 to moderate (108-234) decreasing to low
(25-31) after midnight.
.TUESDAY...
* Sky/weather.........Mostly sunny then becoming partly cloudy.
* Max temperature.....88-96...except 83-88 ridges.
* Min humidity........12-17 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming southwest 2
to 7 mph in the afternoon.
* Ridges/upr slopes....South winds 2 to 6 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11500 ft agl.
* Transport winds.....Southeast around 5 mph increasing to south
around 15 mph in the afternoon.
* Ventilation Index...Low (25-28) increasing to very high
(735-1050) in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...Partly cloudy. Lows 55 to 60. Highs 84 to 93.
Southwest winds 1 to 6 mph.
.THURSDAY...Mostly clear. Lows 51 to 56. Highs 78 to 88.
Northwest winds 1 to 6 mph.
.FRIDAY...Mostly clear. Lows 48 to 53. Highs 77 to 87. Northwest
winds 1 to 6 mph.
.SATURDAY...Mostly clear. Lows 46 to 52. Highs 74 to 83. West
winds 2 to 7 mph.
.SUNDAY...Mostly clear. Lows 44 to 50. Highs 76 to 85. West winds
1 to 6 mph.
$$
ORZ700-241415-
Central Mountains of Oregon-
125 PM PDT Sun Aug 23 2026
.TONIGHT...
* Sky/weather.........Mostly clear. Patchy smoke.
* Min temperature.....43-52.
* Max humidity........50-65 percent...except 42-50 percent ridges.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 1 to 6 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...Moderate (201-303) decreasing to low (25-35)
after midnight.
.MONDAY...
* Sky/weather.........Partly cloudy. Patchy smoke in the morning.
* Max temperature.....87-92...except 80-86 ridges.
* Min humidity........11-19 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 south 1 to 6
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11000 ft agl.
* Transport winds.....Southeast 5 to 10 mph.
* Ventilation Index...Low (25-45) increasing to moderate to very
high (346-998) in the afternoon.
.MONDAY NIGHT...
* Sky/weather.........Partly cloudy. Patchy smoke.
* Min temperature.....46-56...except 52-57 ridges.
* Max humidity........47-62 percent...except 43-50 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.....Northwest 5 to 10 mph.
* Ventilation Index...Low to moderate (153-343) decreasing to low
(25-33) after midnight.
.TUESDAY...
* Sky/weather.........Partly cloudy. Patchy smoke in the morning.
* Max temperature.....88-94...except 81-87 ridges.
* Min humidity........12-17 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming southwest 2
to 7 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming southwest 2
to 7 mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11500 ft agl.
* Transport winds.....South around 5 mph increasing to around 15
mph in the afternoon.
* Ventilation Index...Low (25-31) increasing to high to very high
(640-1050) in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...Partly cloudy. Lows 47 to 56. Highs 84 to 90.
Southwest winds 1 to 6 mph.
.THURSDAY...Mostly clear. Lows 44 to 52. Highs 79 to 86. West
winds 3 to 8 mph.
.FRIDAY...Mostly clear. Lows 42 to 49. Highs 78 to 84. Northwest
winds 2 to 7 mph.
.SATURDAY...Mostly clear. Lows 39 to 47. Highs 75 to 81. West
winds 2 to 7 mph.
.SUNDAY...Mostly clear. Lows 38 to 46. Highs 77 to 83. West winds
1 to 6 mph.
$$
ORZ703-241415-
Warm Springs Reservation-
125 PM PDT Sun Aug 23 2026
.TONIGHT...
* Sky/weather.........Mostly clear. Smoky in the evening. Patchy
smoke after midnight.
* Min temperature.....50-55.
* Max humidity........54-68 percent.
* 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....Northwest 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.....North 5 to 10 mph.
* Ventilation Index...Low to moderate (112-232) decreasing to low
(25-28) after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny then becoming partly cloudy.
Patchy smoke in the afternoon.
* Max temperature.....84-92...except 74-82 ridges.
* Min humidity........19-27 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northeast 2
to 7 mph in the afternoon.
* Ridges/upr slopes....East winds 1 to 6 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......5500 ft agl.
* Transport winds.....East 5 to 10 mph.
* Ventilation Index...Low (25-54) increasing to moderate (271-335)
in the afternoon.
.MONDAY NIGHT...
* Sky/weather.........Partly cloudy. Patchy smoke.
* Min temperature.....57-62.
* Max humidity........39-48 percent.
* Humidity recovery...Poor.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 1 to 6 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....Northeast winds 1 to 6 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.....North 5 to 10 mph.
* Ventilation Index...Low to moderate (122-202) decreasing to low
(25-27) after midnight.
.TUESDAY...
* Sky/weather.........Mostly sunny then becoming partly cloudy.
Patchy smoke in the morning.
* Max temperature.....89-96...except 77-87 ridges.
* Min humidity........18-26 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......9500 ft agl.
* Transport winds.....South 5 to 10 mph.
* Ventilation Index...Low (25) increasing to moderate (271-449) in
the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...Mostly clear. Lows 54 to 59. Highs 79 to 92. West
winds 3 to 8 mph.
.THURSDAY...Mostly clear. Lows 49 to 55. Highs 72 to 85. West
winds 4 to 9 mph.
.FRIDAY...Mostly clear. Lows 46 to 51. Highs 73 to 84. West winds
4 to 9 mph.
.SATURDAY...Mostly clear. Lows 45 to 50. Highs 70 to 81. West
winds 3 to 8 mph.
.SUNDAY...Mostly clear. Lows 44 to 49. Highs 73 to 84. West winds
3 to 8 mph.
$$
ORZ704-241415-
Northern Deschutes National Forest-
125 PM PDT Sun Aug 23 2026
.TONIGHT...
* Sky/weather.........Mostly clear. Smoky in the evening, then
patchy smoke after midnight.
* Min temperature.....44-52.
* Max humidity........51-66 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.....Northeast 5 to 10 mph.
* Ventilation Index...Low to moderate (91-237) decreasing to low
(25-31) after midnight.
.MONDAY...
* Sky/weather.........Mostly sunny then becoming partly cloudy.
Patchy smoke in the morning.
* Max temperature.....85-91...except 75-83 ridges.
* Min humidity........19-26 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming northeast 2
to 5 mph in the afternoon.
* Ridges/upr slopes....East winds 1 to 6 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......8500 ft agl.
* Transport winds.....Southeast 5 to 10 mph.
* Ventilation Index...Low (25-57) increasing to low to moderate
(194-448) in the afternoon.
.MONDAY NIGHT...
* Sky/weather.........Partly cloudy. Patchy smoke.
* Min temperature.....48-57.
* Max humidity........41-56 percent.
* Humidity recovery...Moderate...except Poor 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 5 to 10 mph.
* Ventilation Index...Low (134-196) decreasing to low (25) after
midnight.
.TUESDAY...
* Sky/weather.........Partly cloudy. Patchy smoke in the morning.
* Max temperature.....88-93...except 75-85 ridges.
* Min humidity........18-29 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* 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.......11000 ft agl.
* Transport winds.....Southwest 5 to 10 mph.
* Ventilation Index...Low (25-26) increasing to moderate to high
(442-668) in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...Mostly clear. Lows 45 to 54. Highs 73 to 87. West
winds 3 to 8 mph.
.THURSDAY...Mostly clear. Lows 41 to 50. Highs 69 to 82. West
winds 4 to 9 mph.
.FRIDAY...Mostly clear. Lows 38 to 47. Highs 69 to 82. West winds
2 to 7 mph.
.SATURDAY...Mostly clear. Lows 37 to 45. Highs 66 to 79. West
winds 2 to 7 mph.
.SUNDAY...Mostly clear. Lows 36 to 44. Highs 69 to 81. Northwest
winds 1 to 6 mph.
$$
ORZ705-241415-
Southern Deschutes National Forest-
125 PM PDT Sun Aug 23 2026
.TONIGHT...
* Sky/weather.........Mostly clear. Patchy smoke.
* Min temperature.....39-49.
* Max humidity........55-70 percent...except 44-59 percent ridges.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 1 to 5 mph in the evening
becoming drainage winds less than 5 mph.
* Ridges/upr slopes....Northeast winds 1 to 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 to moderate (163-319) decreasing to low
(25-36) after midnight.
.MONDAY...
* Sky/weather.........Partly cloudy. Patchy smoke in the morning.
* Max temperature.....86-91...except 76-84 ridges.
* Min humidity........10-19 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph.
* Ridges/upr slopes....Southeast winds 1 to 5 mph in the morning
becoming light less than 5 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11500 ft agl.
* Transport winds.....Southeast around 5 mph increasing to south
around 15 mph in the afternoon.
* Ventilation Index...Low (30-60) increasing to very high
(754-1050) in the afternoon.
.MONDAY NIGHT...
* Sky/weather.........Partly cloudy. Patchy smoke after midnight.
* Min temperature.....42-52.
* Max humidity........55-70 percent...except 41-56 percent ridges.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....Northwest winds 2 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.....Northwest 5 to 10 mph.
* Ventilation Index...Low to moderate (191-313) decreasing to low
(25-30) after midnight.
.TUESDAY...
* Sky/weather.........Partly cloudy. Patchy smoke in the morning.
* Max temperature.....85-90...except 75-83 ridges.
* Min humidity........12-24 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming south 2 to
6 mph in the afternoon.
* Ridges/upr slopes....South winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11000 ft agl.
* Transport winds.....South around 5 mph increasing to southwest
around 15 mph in the afternoon.
* Ventilation Index...Low (25-30) increasing to very high
(884-1050) in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...Mostly clear. Lows 40 to 50. Highs 76 to 87. West
winds 1 to 6 mph.
.THURSDAY...Mostly clear. Lows 37 to 46. Highs 72 to 84. West
winds 1 to 6 mph.
.FRIDAY...Mostly clear. Lows 35 to 44. Highs 72 to 83. West winds
1 to 6 mph.
.SATURDAY...Mostly clear. Lows 32 to 42. Highs 69 to 80. West
winds 1 to 6 mph.
.SUNDAY...Mostly clear. Lows 31 to 42. Highs 72 to 82. West winds
1 to 6 mph.
$$
ORZ697-241415-
Central Blue Mountains-
125 PM PDT Sun Aug 23 2026
.TONIGHT...
* Sky/weather.........Mostly clear. Patchy smoke after midnight.
* Min temperature.....44-52.
* Max humidity........42-51 percent.
* Humidity recovery...Moderate.
* 20-foot winds.......
* Valleys/lwr slopes...Drainage winds less than 5 mph.
* Ridges/upr slopes....Northwest 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.....North 5 to 10 mph.
* Ventilation Index...Moderate (210-268) decreasing to low (25-34)
after midnight.
.MONDAY...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
Patchy smoke.
* Max temperature.....83-88...except 78-85 ridges.
* Min humidity........12-17 percent.
* 20-foot winds.......
* Valleys/lwr slopes...South winds 1 to 6 mph.
* Ridges/upr slopes....South winds 1 to 6 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11000 ft agl.
* Transport winds.....Southeast around 5 mph increasing to south
around 15 mph in the afternoon.
* Ventilation Index...Low (36-58) increasing to very high
(779-1049) in the afternoon.
.MONDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
* Min temperature.....49-57.
* Max humidity........43-55 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 becoming south
up to 5 mph after midnight.
* CWR.................0 percent.
* Chc of lightning....10 percent (very low chance).
* Mixing height.......500 ft agl.
* Transport winds.....South around 10 mph.
* Ventilation Index...Moderate (252-356) decreasing to low (26-36)
after midnight.
.TUESDAY...
* Sky/weather.........Mostly sunny then becoming partly cloudy.
* Max temperature.....84-89...except 79-86 ridges.
* Min humidity........13-18 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming south 3 to
7 mph in the afternoon.
* Ridges/upr slopes....South winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11500 ft agl.
* Transport winds.....South around 5 mph increasing to around 15
mph in the afternoon.
* Ventilation Index...Low (26-36) increasing to very high
(1036-1050) in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...Partly cloudy. Lows 50 to 59. Highs 80 to 87.
Southwest winds 2 to 7 mph.
.THURSDAY...Partly cloudy. Lows 47 to 55. Highs 78 to 84. West
winds 1 to 6 mph.
.FRIDAY...Mostly clear. Lows 44 to 52. Highs 77 to 83. Northwest
winds 1 to 6 mph.
.SATURDAY...Mostly clear. Lows 42 to 50. Highs 73 to 79. West
winds 2 to 7 mph.
.SUNDAY...Mostly clear. Lows 39 to 47. Highs 74 to 80. West winds
1 to 6 mph.
$$
ORZ698-241415-
Southern Blue Mountains-
125 PM PDT Sun Aug 23 2026
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....45-52.
* Max humidity........39-50 percent.
* Humidity recovery...Moderate...except Poor 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 10 mph.
* Ventilation Index...Moderate (225-273) decreasing to low (33-47)
after midnight.
.MONDAY...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
Patchy smoke.
* Max temperature.....83-89.
* Min humidity........12-17 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southeast winds 2 to 7 mph.
* Ridges/upr slopes....South winds 2 to 7 mph.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......10000 ft agl.
* Transport winds.....East around 10 mph shifting to the south in
the afternoon.
* Ventilation Index...Low (42-70) increasing to high to very high
(620-930) in the afternoon.
.MONDAY NIGHT...
* Sky/weather.........Mostly cloudy then becoming partly cloudy.
* Min temperature.....49-56.
* Max humidity........47-58 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....10 percent (very low chance).
* Mixing height.......500 ft agl.
* Transport winds.....South around 10 mph.
* Ventilation Index...Moderate (273-355) decreasing to low (28-42)
after midnight.
.TUESDAY...
* Sky/weather.........Mostly sunny then becoming partly cloudy.
* Max temperature.....85-90.
* Min humidity........12-17 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upslope less than 5 mph becoming south 5 to
8 mph in the afternoon.
* Ridges/upr slopes....light less than 5 mph becoming south 5 to 8
mph in the afternoon.
* CWR.................0 percent.
* Chc of lightning....0 percent.
* Mixing height.......11000 ft agl.
* Transport winds.....South around 5 mph increasing to around 15
mph in the afternoon.
* Ventilation Index...Low (25-35) increasing to very high
(969-1050) in the afternoon.
.Forecast days 3 through 7......
.WEDNESDAY...Partly cloudy. Lows 50 to 58. Highs 84 to 89.
Southwest winds 2 to 7 mph.
.THURSDAY...Partly cloudy. Lows 47 to 56. Highs 81 to 87. West
winds 1 to 6 mph.
.FRIDAY...Mostly clear. Lows 45 to 54. Highs 80 to 86. Northwest
winds 1 to 6 mph.
.SATURDAY...Mostly clear. Lows 43 to 52. Highs 77 to 83. West
winds 2 to 7 mph.
.SUNDAY...Mostly clear. Lows 40 to 49. Highs 78 to 83. West winds
1 to 6 mph.
$$
.8-14 DAY OUTLOOK for Monday August 31 through Sunday September 6...
A greater chance of near-normal temperatures and above-normal
precipitation.
$$