514
FNUS56 KOTX 252150
FWFOTX
FIRE WEATHER PLANNING FORECAST FOR EASTERN WASHINGTON AND NORTH IDAHO
NATIONAL WEATHER SERVICE SPOKANE WA
250 PM PDT TUE AUG 25 2026
...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING FOR FIRE ZONES 703 AND 706...
DISCUSSION
CENTRAL WA:
- POOR RELATIVE HUMIDITY RECOVERY TUESDAY NIGHT.
- HOT, DRY, UNSTABLE, AND BREEZY WEDNESDAY AFTERNOON.
EASTERN WA:
- POOR TO FAIR RELATIVE HUMIDITY RECOVERY MID-SLOPES AND
RIDGETOPS TUESDAY NIGHT
- HOT, DRY, AND BREEZY WEDNESDAY AFTERNOON.
- SLIGHT T-STORM CHANCES NORTHERN MOUNTAINS WEDNESDAY PM.
NORTH ID:
- POOR TO FAIR RELATIVE HUMIDITY RECOVERY MID-SLOPES AND
RIDGETOPS TUESDAY NIGHT
- HOT, DRY, AND BREEZY WEDNESDAY AFTERNOON.
- SLIGHT T-STORM CHANCES NORTHERN MOUNTAINS WEDNESDAY PM.
WARM AND DRY CONDITIONS TONIGHT WITH POOR TO FAIR RELATIVE
HUMIDITY RECOVERIES ACROSS THE INLAND NORTHWEST. WEDNESDAY WILL BE
HOT AND DRY WITH BREEZY WINDS AND A 10-15 PERCENT CHANCE OF DRY
THUNDERSTORMS ACROSS THE NORTHERN MOUNTAINS AND THE IDAHO
PANHANDLE. A RIDGE BREAK DOWN LATE WEDNESDAY INTO THURSDAY WILL
BRING THE NEXT ROUND OF ELEVATED TO CRITICAL FIRE WEATHER
CONDITIONS ON THURSDAY WITH STRONGER WEST TO SOUTHWEST WINDS.
WEATHER TRENDS COOLER WITH HIGHER RELATIVE HUMIDITY THURSDAY
THROUGH THE WEEKEND.
***************************************************************
FORECASTS FOR 20 FOOT WIND SPEEDS (VALLEYS AND RIDGE TOPS) ARE
10 MINUTE AVERAGES REFLECTING RAWS WIND.
***VENTILATION INDEX IS DERIVED FROM TRANSPORT WIND
MULTIPLIED BY THE MIXING HEIGHT DIVIDED BY 100.
CATEGORIES: LOW (< 200), MODERATE (200-500),
HIGH (500-800), AND VERY HIGH (> 800).
***************************************************************
WAZ696-698-261330-
EAST WASHINGTON CENTRAL CASCADES (ZONE 696)-
EAST WASHINGTON NORTH CASCADES (ZONE 698)-
INCLUDING THE CITIES OF STEVENS PASS, LAKE WENATCHEE AREA,
AND LEAVENWORTH
250 PM PDT TUE AUG 25 2026
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....55-65.
* 24 HR TREND........2 DEGREES COOLER.
* MAX HUMIDITY........40-55 PERCENT.
* 24 HR TREND........10 PERCENT DRIER VALLEYS, AND 15 PERCENT DRIER
MOUNTAINS.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST 3 TO 7 MPH IN THE EVENING SHIFTING TO
THE NORTHWEST OVERNIGHT.
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 7 MPH.
* MIXING HEIGHT.......6000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (573) IN THE EVENING DECREASING TO LOW
(44) OVERNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY. SMOKE AND HAZE. A CHANCE OF
RAIN SHOWERS EARLY IN THE AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....85-95 VALLEYS AND 73-83 MOUNTAINS.
* 24 HR TREND........UNCHANGED.
* MIN HUMIDITY........25-35 PERCENT.
* 24 HR TREND........3 PERCENT DRIER.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST 3 TO 10 MPH WITH GUSTS TO AROUND
20 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 11 MPH WITH GUSTS TO
AROUND 20 MPH.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...VERY HIGH (826) IN THE MORNING INCREASING TO
VERY HIGH (1422) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....48-58.
* MAX HUMIDITY........50-65 PERCENT.
* HUMIDITY RECOVERY...FAIR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST 3 TO 10 MPH.
* RIDGES/UPR SLOPES....WEST 3 TO 10 MPH.
* MIXING HEIGHT.......5500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...VERY HIGH (869) IN THE EVENING DECREASING TO
LOW (57) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........PARTLY SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....73-83 VALLEYS AND 63-73 MOUNTAINS.
* MIN HUMIDITY........26-40 PERCENT VALLEYS AND 35-50 PERCENT
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST 3 TO 11 MPH. GUSTS UP TO 25 MPH IN THE
AFTERNOON.
* RIDGES/UPR SLOPES....WEST 3 TO 11 MPH. GUSTS UP TO 25 MPH IN
THE AFTERNOON.
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (461) IN THE MORNING INCREASING TO
VERY HIGH (878) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY...MOSTLY CLEAR. LOWS 43 TO 53. HIGHS 73 TO 83 VALLEYS
61 TO 71 MOUNTAINS. WEST WIND UP TO 10 MPH.
SATURDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 50 TO
60 VALLEYS...42 TO 52 MOUNTAINS. HIGHS 68 TO 78 VALLEYS...57 TO
67 MOUNTAINS. NORTHWEST WIND 5 TO 10 MPH.
SUNDAY...PARTLY CLOUDY. LOWS 48 TO 58 VALLEYS
41 TO
51 MOUNTAINS. HIGHS 74 TO 84 VALLEYS...62 TO 72 MOUNTAINS. WEST
WIND UP TO 5 MPH.
MONDAY...PARTLY CLOUDY. LOWS 52 TO 62 VALLEYS
43 TO
53 MOUNTAINS. HIGHS 74 TO 84 VALLEYS...62 TO 72 MOUNTAINS.
TUESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 50 TO
60 VALLEYS...43 TO 53 MOUNTAINS. HIGHS 68 TO 78 VALLEYS...57 TO
67 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ697-261330-
EAST PORTION OF NORTH CASCADES NATIONAL PARK/LAKE CHELAN NATIONAL
RECREATION AREA (ZONE 697)-
INCLUDING THE CITY OF STEHEKIN
250 PM PDT TUE AUG 25 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....53-63.
* 24 HR TREND........1 DEGREE WARMER.
* MAX HUMIDITY........45-60 PERCENT.
* 24 HR TREND........5 PERCENT DRIER VALLEYS, AND 5 PERCENT WETTER
MOUNTAINS.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST 3 TO 6 MPH IN THE EVENING SHIFTING
TO THE NORTHWEST 3 TO 4 MPH OVERNIGHT.
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 6 MPH.
* MIXING HEIGHT.......5000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (521) IN THE EVENING DECREASING TO LOW
(25) OVERNIGHT.
WEDNESDAY
* SKY/WEATHER.........SUNNY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....85-95 VALLEYS AND 73-83 MOUNTAINS.
* 24 HR TREND........2 DEGREES COOLER.
* MIN HUMIDITY........30-45 PERCENT.
* 24 HR TREND........13 PERCENT WETTER.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST 3 TO 10 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 11 MPH.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (660) IN THE MORNING INCREASING TO VERY
HIGH (1026) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLEAR THEN BECOMING MOSTLY CLOUDY.
SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....51-58 VALLEYS AND 45-55 MOUNTAINS.
* MAX HUMIDITY........60-70 PERCENT.
* HUMIDITY RECOVERY...FAIR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST 3 TO 10 MPH.
* RIDGES/UPR SLOPES....WEST 3 TO 10 MPH.
* MIXING HEIGHT.......3000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (323) IN THE EVENING DECREASING TO
LOW (42) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....73-83 VALLEYS AND 61-71 MOUNTAINS.
* MIN HUMIDITY........45-60 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST 3 TO 11 MPH.
* RIDGES/UPR SLOPES....WEST 3 TO 12 MPH.
* MIXING HEIGHT.......5000 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (348) IN THE MORNING INCREASING TO
HIGH (646) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 43 TO 53.
HIGHS 72 TO 82 VALLEYS...60 TO 70 MOUNTAINS. WEST WIND 5 TO
10 MPH.
SATURDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 50 TO
60 VALLEYS...41 TO 51 MOUNTAINS. HIGHS 68 TO 78 VALLEYS...55 TO
65 MOUNTAINS. WEST WIND 5 TO 10 MPH.
SUNDAY...PARTLY CLOUDY. LOWS 49 TO 58 VALLEYS
40 TO
50 MOUNTAINS. HIGHS 75 TO 85 VALLEYS...62 TO 72 MOUNTAINS. WEST
WIND UP TO 5 MPH.
MONDAY...PARTLY CLOUDY. LOWS 52 TO 62 VALLEYS
43 TO
53 MOUNTAINS. HIGHS 75 TO 85 VALLEYS...62 TO 72 MOUNTAINS.
TUESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 51 TO
61 VALLEYS...42 TO 52 MOUNTAINS. HIGHS 67 TO 77 VALLEYS...55 TO
65 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ704-261330-
METHOW VALLEY (ZONE 704)-
INCLUDING THE CITIES OF MAZAMA, WINTHROP, AND TWISP
250 PM PDT TUE AUG 25 2026
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM WEDNESDAY AFTERNOON
THROUGH WEDNESDAY EVENING...
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM THURSDAY AFTERNOON
THROUGH THURSDAY EVENING...
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....60-68.
* 24 HR TREND........1 DEGREE COOLER.
* MAX HUMIDITY........35-50 PERCENT.
* 24 HR TREND........5 PERCENT DRIER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTHEAST UP TO 6 MPH IN THE EVENING SHIFTING
TO THE NORTHWEST 3 TO 5 MPH OVERNIGHT.
* MIXING HEIGHT.......6500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (584) IN THE EVENING DECREASING TO LOW
(42) OVERNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....88-97.
* 24 HR TREND........1 DEGREE WARMER.
* MIN HUMIDITY........17-21 PERCENT.
* 24 HR TREND........UNCHANGED.
* 20-FOOT WINDS.......NORTH UP TO 5 MPH IN THE MORNING SHIFTING TO
THE SOUTHEAST IN THE AFTERNOON.
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....SOUTH 10 TO 20 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (389) IN THE MORNING INCREASING TO
VERY HIGH (1331) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....54-64.
* MAX HUMIDITY........50-65 PERCENT.
* HUMIDITY RECOVERY...FAIR.
* 20-FOOT WINDS.......WEST 3 TO 8 MPH. GUSTS UP TO 20 MPH IN THE
EVENING.
* MIXING HEIGHT.......8000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...VERY HIGH (937) IN THE EVENING DECREASING TO
LOW (50) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....79-88.
* MIN HUMIDITY........21-30 PERCENT.
* 20-FOOT WINDS.......NORTHWEST 3 TO 5 MPH IN THE MORNING SHIFTING
TO THE SOUTHWEST 3 TO 12 MPH WITH GUSTS TO AROUND 25 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (417) IN THE MORNING INCREASING TO
VERY HIGH (1060) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
MOSTLY CLEAR. LOWS 49 TO 59. HIGHS 77 TO 85. WEST WIND
UP TO 10 MPH.
SATURDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 48 TO
57. HIGHS 73 TO 81. NORTHWEST WIND UP TO 5 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 47 TO 57. HIGHS 76 TO 84. SOUTHWEST
WIND UP TO 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS 49 TO 58. HIGHS 78 TO 86.
TUESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 49 TO
59. HIGHS 72 TO 81.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ703-261330-
OKANOGAN VALLEY (ZONE 703)-
INCLUDING THE CITIES OF CONCONULLY AND OMAK
250 PM PDT TUE AUG 25 2026
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM WEDNESDAY AFTERNOON
THROUGH WEDNESDAY EVENING...
...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....63-67.
* 24 HR TREND........1 DEGREE WARMER.
* MAX HUMIDITY........35-45 PERCENT.
* 24 HR TREND........10 PERCENT DRIER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 5 MPH IN THE EVENING SHIFTING
TO THE NORTH OVERNIGHT.
* MIXING HEIGHT.......7500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (544) IN THE EVENING DECREASING TO LOW
(33) OVERNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....89-97.
* 24 HR TREND........3 DEGREES WARMER.
* MIN HUMIDITY........15-18 PERCENT.
* 24 HR TREND........UNCHANGED.
* 20-FOOT WINDS.......NORTH 3 TO 6 MPH IN THE MORNING SHIFTING TO
THE SOUTH 3 TO 10 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......10000 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...LOW (167) IN THE MORNING INCREASING TO VERY
HIGH (1350) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
HAZE AND AREAS OF SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....59-64.
* MAX HUMIDITY........45-55 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 10 MPH. GUSTS UP TO 25 MPH IN
THE EVENING.
* MIXING HEIGHT.......9000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...VERY HIGH (1051) IN THE EVENING DECREASING TO
LOW (41) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........PARTLY SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....81-89.
* MIN HUMIDITY........19-24 PERCENT.
* 20-FOOT WINDS.......SOUTHWEST UP TO 5 MPH IN THE MORNING
SHIFTING TO THE SOUTH 10 TO 25 MPH WITH GUSTS TO AROUND 35 MPH
IN THE AFTERNOON.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 20 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (534) IN THE MORNING INCREASING TO VERY
HIGH (1512) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
MOSTLY CLEAR. LOWS 52 TO 58. HIGHS 77 TO 86. WEST WIND
UP TO 10 MPH.
SATURDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 52 TO
58. HIGHS 73 TO 81. NORTHWEST WIND 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 51 TO 57. HIGHS 76 TO 84. SOUTHWEST
WIND UP TO 10 MPH.
MONDAY
PARTLY CLOUDY. LOWS 52 TO 58. HIGHS 79 TO 87.
TUESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 53 TO
59. HIGHS 74 TO 82.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ702-261330-
COLVILLE RESERVATION (ZONE 702)-
INCLUDING THE CITIES OF NESPELEM AND KELLER
250 PM PDT TUE AUG 25 2026
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM WEDNESDAY AFTERNOON
THROUGH WEDNESDAY EVENING...
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM THURSDAY AFTERNOON
THROUGH THURSDAY EVENING...
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....61-66.
* 24 HR TREND........UNCHANGED.
* MAX HUMIDITY........35-45 PERCENT.
* 24 HR TREND........5 PERCENT DRIER VALLEYS, AND 10 PERCENT DRIER
MOUNTAINS.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST UP TO 5 MPH.
* RIDGES/UPR SLOPES....EAST UP TO 5 MPH.
* MIXING HEIGHT.......7500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....EAST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (545) IN THE EVENING DECREASING TO LOW
(34) OVERNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY. HAZE LATE IN THE AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....87-97 VALLEYS AND 80-90 MOUNTAINS.
* 24 HR TREND........1 DEGREE COOLER.
* MIN HUMIDITY........16-22 PERCENT.
* 24 HR TREND........2 PERCENT WETTER.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST 3 TO 5 MPH IN THE MORNING SHIFTING TO
THE SOUTH 3 TO 9 MPH WITH GUSTS TO AROUND 20 MPH IN THE
AFTERNOON.
* RIDGES/UPR SLOPES....EAST 3 TO 5 MPH IN THE MORNING SHIFTING TO
THE SOUTH 4 TO 8 MPH WITH GUSTS TO AROUND 20 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (403) IN THE MORNING INCREASING TO
VERY HIGH (1308) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
HAZE IN THE EVENING. AREAS OF SMOKE IN THE LATE EVENING AND
OVERNIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....59-64.
* MAX HUMIDITY........40-50 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH 3 TO 9 MPH. GUSTS UP TO 20 MPH IN THE
EVENING.
* RIDGES/UPR SLOPES....SOUTH 3 TO 9 MPH. GUSTS UP TO 20 MPH IN THE
EVENING.
* MIXING HEIGHT.......7000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTH 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...VERY HIGH (1015) IN THE EVENING DECREASING TO
LOW (44) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........PARTLY SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....79-89 VALLEYS AND 72-81 MOUNTAINS.
* MIN HUMIDITY........19-26 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH 3 TO 13 MPH. GUSTS UP TO 30 MPH IN THE
AFTERNOON.
* RIDGES/UPR SLOPES....SOUTH 3 TO 13 MPH. GUSTS UP TO 25 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....SOUTH 10 TO 20 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (512) IN THE MORNING INCREASING TO VERY
HIGH (1287) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY...MOSTLY CLEAR. LOWS 50 TO 57. HIGHS 75 TO 85 VALLEYS
68 TO 77 MOUNTAINS. SOUTHWEST WIND UP TO 5 MPH.
SATURDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 50 TO
56. HIGHS 70 TO 80 VALLEYS...63 TO 73 MOUNTAINS. NORTHWEST WIND
UP TO 10 MPH.
SUNDAY...PARTLY CLOUDY. LOWS 49 TO 55. HIGHS 73 TO 83 VALLEYS
67 TO 76 MOUNTAINS. SOUTHWEST WIND UP TO 5 MPH.
MONDAY...PARTLY CLOUDY. LOWS 50 TO 55. HIGHS 77 TO 87 VALLEYS
70 TO 79 MOUNTAINS.
TUESDAY...MOSTLY CLOUDY. LOWS 52 TO 58. HIGHS 72 TO 82 VALLEYS
65 TO 75 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ699-261330-
OKANOGAN HIGHLANDS AND KETTLE MOUNTAINS (ZONE 699)-
INCLUDING THE CITIES OF REPUBLIC AND CURLEW
250 PM PDT TUE AUG 25 2026
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....56-64.
* 24 HR TREND........2 DEGREES WARMER.
* MAX HUMIDITY........45-60 PERCENT VALLEYS AND 35-50 PERCENT
MOUNTAINS.
* 24 HR TREND........15 PERCENT DRIER VALLEYS, AND 10 PERCENT DRIER
MOUNTAINS.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST UP TO 4 MPH.
* RIDGES/UPR SLOPES....EAST UP TO 5 MPH.
* MIXING HEIGHT.......7000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....EAST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (543) IN THE EVENING DECREASING TO LOW
(38) OVERNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY. HAZE. A CHANCE OF RAIN
SHOWERS IN THE AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....88-98 VALLEYS AND 79-89 MOUNTAINS.
* 24 HR TREND........1 DEGREE WARMER.
* MIN HUMIDITY........16-23 PERCENT.
* 24 HR TREND........3 PERCENT WETTER.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST UP TO 4 MPH IN THE MORNING
SHIFTING TO THE SOUTH 3 TO 7 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHEAST 3 TO 6 MPH.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST 10 TO 20 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (545) IN THE MORNING INCREASING TO VERY
HIGH (1564) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....55-63.
* MAX HUMIDITY........45-60 PERCENT VALLEYS AND 40-50 PERCENT
MOUNTAINS.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH UP TO 6 MPH.
* RIDGES/UPR SLOPES....SOUTH UP TO 6 MPH.
* MIXING HEIGHT.......7500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTH 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...VERY HIGH (1031) IN THE EVENING DECREASING TO
LOW (50) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........PARTLY SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....80-90 VALLEYS AND 72-81 MOUNTAINS.
* MIN HUMIDITY........21-27 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH 3 TO 12 MPH. GUSTS UP TO 25 MPH IN THE
AFTERNOON.
* RIDGES/UPR SLOPES....SOUTH 3 TO 12 MPH. GUSTS UP TO 25 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (676) IN THE MORNING INCREASING TO VERY
HIGH (1355) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY...MOSTLY CLEAR. LOWS 47 TO 54. HIGHS 75 TO 85 VALLEYS
68 TO 77 MOUNTAINS. SOUTHWEST WIND UP TO 5 MPH.
SATURDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 46 TO
55. HIGHS 69 TO 79 VALLEYS...62 TO 71 MOUNTAINS. NORTHWEST WIND
UP TO 5 MPH.
SUNDAY...PARTLY CLOUDY. LOWS 44 TO 54. HIGHS 74 TO 83 VALLEYS
67 TO 75 MOUNTAINS. SOUTHWEST WIND UP TO 5 MPH.
MONDAY...PARTLY CLOUDY. LOWS 46 TO 54. HIGHS 77 TO 86 VALLEYS
69 TO 78 MOUNTAINS.
TUESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 48 TO
56. HIGHS 72 TO 82 VALLEYS...65 TO 74 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ700-701-261330-
SELKIRK MOUNTAINS OF NORTHEAST WASHINGTON (ZONE 700)-
FOOTHILLS OF NORTHEAST WASHINGTON (ZONE 701)-
INCLUDING THE CITIES OF METALINE FALLS, IONE, COLVILLE,
DEER PARK, AND NEWPORT
250 PM PDT TUE AUG 25 2026
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM THURSDAY AFTERNOON
THROUGH THURSDAY EVENING...
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....55-65.
* 24 HR TREND........1 DEGREE WARMER.
* MAX HUMIDITY........45-60 PERCENT.
* 24 HR TREND........15 PERCENT DRIER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST UP TO 6 MPH.
* RIDGES/UPR SLOPES....EAST UP TO 7 MPH.
* MIXING HEIGHT.......6500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....EAST AROUND 5 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (514) IN THE EVENING DECREASING TO LOW
(32) OVERNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY. HAZE. A CHANCE OF RAIN
SHOWERS IN THE AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....89-97 VALLEYS AND 80-90 MOUNTAINS.
* 24 HR TREND........1 DEGREE WARMER.
* MIN HUMIDITY........17-26 PERCENT.
* 24 HR TREND........1 PERCENT WETTER.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST UP TO 4 MPH IN THE MORNING SHIFTING TO
THE SOUTH 3 TO 6 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....EAST 3 TO 6 MPH IN THE MORNING SHIFTING TO
THE SOUTH 3 TO 7 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (389) IN THE MORNING INCREASING TO
VERY HIGH (1077) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....54-64.
* MAX HUMIDITY........50-60 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH UP TO 6 MPH.
* RIDGES/UPR SLOPES....SOUTHEAST UP TO 6 MPH.
* MIXING HEIGHT.......5500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTH 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (725) IN THE EVENING DECREASING TO LOW
(34) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........PARTLY SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....81-88 VALLEYS AND 72-82 MOUNTAINS.
* MIN HUMIDITY........20-26 PERCENT VALLEYS AND 27-35 PERCENT
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH UP TO 11 MPH. GUSTS UP TO 25 MPH IN
THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTH UP TO 11 MPH. GUSTS UP TO 25 MPH IN
THE AFTERNOON.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....SOUTH 10 TO 20 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (540) IN THE MORNING INCREASING TO VERY
HIGH (1347) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY...MOSTLY CLEAR. LOWS 47 TO 55. HIGHS 76 TO 83 VALLEYS
66 TO 76 MOUNTAINS. SOUTH WIND UP TO 5 MPH.
SATURDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 45 TO
54. HIGHS 71 TO 78 VALLEYS...61 TO 71 MOUNTAINS. SOUTHWEST WIND
UP TO 5 MPH.
SUNDAY...PARTLY CLOUDY. LOWS 43 TO 53. HIGHS 74 TO 81 VALLEYS
64 TO 74 MOUNTAINS. SOUTH WIND UP TO 5 MPH.
MONDAY...PARTLY CLOUDY. LOWS 44 TO 54. HIGHS 78 TO 85 VALLEYS
68 TO 78 MOUNTAINS.
TUESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 46 TO
56. HIGHS 73 TO 80 VALLEYS...64 TO 73 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
IDZ101-261330-
NORTHERN AND CENTRAL IDAHO PANHANDLE (ZONE 101)-
INCLUDING THE CITIES OF ST. MARIES, RATHDRUM PRAIRIE,
SILVER VALLEY, BONNERS FERRY, AND PRIEST LAKE
250 PM PDT TUE AUG 25 2026
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. HAZE IN THE EVENING. HAZE LATE
IN THE NIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....57-66.
* 24 HR TREND........2 DEGREES WARMER.
* MAX HUMIDITY........50-65 PERCENT VALLEYS AND 40-50 PERCENT
MOUNTAINS.
* 24 HR TREND........25 PERCENT DRIER VALLEYS, AND UNCHANGED
MOUNTAINS.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST UP TO 6 MPH.
* RIDGES/UPR SLOPES....EAST UP TO 6 MPH.
* MIXING HEIGHT.......5500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....EAST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (440) IN THE EVENING DECREASING TO
LOW (34) OVERNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY. HAZE. A CHANCE OF RAIN
SHOWERS IN THE LATE MORNING AND AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....90-98 VALLEYS AND 82-92 MOUNTAINS.
* 24 HR TREND........UNCHANGED.
* MIN HUMIDITY........20-28 PERCENT.
* 24 HR TREND........3 PERCENT WETTER.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST 3 TO 4 MPH IN THE MORNING SHIFTING TO
THE SOUTHWEST 3 TO 6 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHEAST 3 TO 6 MPH IN THE MORNING SHIFTING
TO THE SOUTH IN THE AFTERNOON.
* MIXING HEIGHT.......10000 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...VERY HIGH (983) IN THE MORNING INCREASING TO
VERY HIGH (1667) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS IN
THE EVENING. HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....55-64.
* MAX HUMIDITY........55-70 PERCENT VALLEYS AND 45-60 PERCENT
MOUNTAINS.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST 3 TO 5 MPH IN THE EVENING SHIFTING
TO THE SOUTHEAST UP TO 3 MPH OVERNIGHT.
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 6 MPH.
* MIXING HEIGHT.......3500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (376) IN THE EVENING DECREASING TO
LOW (38) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........PARTLY SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....81-89 VALLEYS AND 73-83 MOUNTAINS.
* MIN HUMIDITY........23-29 PERCENT VALLEYS AND 28-40 PERCENT
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST UP TO 9 MPH. GUSTS UP TO 20 MPH IN
THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHWEST UP TO 10 MPH. GUSTS UP TO 20
MPH IN THE AFTERNOON.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (380) IN THE MORNING INCREASING TO
VERY HIGH (1157) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY...MOSTLY CLEAR. LOWS 49 TO 58. HIGHS 75 TO 82 VALLEYS
67 TO 77 MOUNTAINS. SOUTHWEST WIND UP TO 10 MPH.
SATURDAY
MOSTLY CLEAR. A CHANCE OF RAIN SHOWERS. LOWS 47 TO
55. HIGHS 71 TO 77 VALLEYS...61 TO 71 MOUNTAINS. SOUTHWEST WIND
UP TO 10 MPH.
SUNDAY...MOSTLY CLEAR. LOWS 44 TO 53. HIGHS 74 TO 80 VALLEYS
64 TO 74 MOUNTAINS. SOUTHWEST WIND UP TO 5 MPH.
MONDAY
MOSTLY CLEAR. A CHANCE OF RAIN SHOWERS. LOWS 45 TO 54.
HIGHS 79 TO 85 VALLEYS...70 TO 80 MOUNTAINS.
TUESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 47 TO
56. HIGHS 74 TO 80 VALLEYS...65 TO 75 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ707-261330-
WESTERN COLUMBIA BASIN (ZONE 707)-
INCLUDING THE CITIES OF MOSES LAKE AND EPHRATA
250 PM PDT TUE AUG 25 2026
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM WEDNESDAY AFTERNOON
THROUGH WEDNESDAY EVENING...
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM THURSDAY AFTERNOON
THROUGH THURSDAY EVENING...
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....59-67.
* 24 HR TREND........1 DEGREE COOLER.
* MAX HUMIDITY........45-60 PERCENT.
* 24 HR TREND........5 PERCENT DRIER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 6 MPH IN THE EVENING SHIFTING
TO THE NORTH 3 TO 7 MPH OVERNIGHT.
* MIXING HEIGHT.......6000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (467) IN THE EVENING DECREASING TO
LOW (48) OVERNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....92-98.
* 24 HR TREND........1 DEGREE COOLER.
* MIN HUMIDITY........17-21 PERCENT.
* 24 HR TREND........1 PERCENT WETTER.
* 20-FOOT WINDS.......SOUTH 3 TO 11 MPH. GUSTS UP TO 25 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (209) IN THE MORNING INCREASING TO
VERY HIGH (1232) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....58-65.
* MAX HUMIDITY........50-60 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTHWEST 4 TO 11 MPH. GUSTS UP TO 25 MPH IN
THE EVENING.
* MIXING HEIGHT.......8000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...VERY HIGH (1093) IN THE EVENING DECREASING TO
LOW (50) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........PARTLY SUNNY THEN BECOMING SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....85-90.
* MIN HUMIDITY........18-24 PERCENT.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 7 MPH IN THE MORNING
INCREASING TO 7 TO 15 MPH WITH GUSTS TO AROUND 30 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 20 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (531) IN THE MORNING INCREASING TO VERY
HIGH (1467) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY THROUGH SUNDAY
MOSTLY CLEAR. LOWS 49 TO 59. HIGHS 77 TO
86. SOUTHWEST WIND UP TO 10 MPH.
MONDAY
PARTLY CLOUDY. LOWS 49 TO 58. HIGHS 83 TO 88.
TUESDAY
PARTLY CLOUDY. LOWS 51 TO 59. HIGHS 78 TO 83.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ708-261330-
EASTERN COLUMBIA BASIN - PALOUSE - SPOKANE AREA (ZONE 708)-
INCLUDING THE CITIES OF SPOKANE, PULLMAN, RITZVILLE, WILBUR,
AND CHENEY
250 PM PDT TUE AUG 25 2026
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM WEDNESDAY AFTERNOON
THROUGH WEDNESDAY EVENING...
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM THURSDAY AFTERNOON
THROUGH THURSDAY EVENING...
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....58-64.
* 24 HR TREND........UNCHANGED.
* MAX HUMIDITY........40-55 PERCENT.
* 24 HR TREND........5 PERCENT DRIER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTH 3 TO 6 MPH IN THE EVENING SHIFTING TO
THE EAST UP TO 6 MPH OVERNIGHT.
* MIXING HEIGHT.......7500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHEAST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (660) IN THE EVENING DECREASING TO LOW
(32) OVERNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY. HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....92-98.
* 24 HR TREND........1 DEGREE COOLER.
* MIN HUMIDITY........16-20 PERCENT.
* 24 HR TREND........3 PERCENT WETTER.
* 20-FOOT WINDS.......SOUTHEAST 3 TO 6 MPH IN THE MORNING SHIFTING
TO THE SOUTHWEST 4 TO 11 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (243) IN THE MORNING INCREASING TO
VERY HIGH (1040) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....57-63.
* MAX HUMIDITY........45-55 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 10 MPH.
* MIXING HEIGHT.......5500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...VERY HIGH (872) IN THE EVENING DECREASING TO
LOW (56) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....84-91.
* MIN HUMIDITY........20-24 PERCENT.
* 20-FOOT WINDS.......SOUTHWEST 7 TO 15 MPH. GUSTS UP TO 30 MPH
IN THE AFTERNOON.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 20 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (507) IN THE MORNING INCREASING TO VERY
HIGH (1365) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY THROUGH SUNDAY
MOSTLY CLEAR. LOWS 46 TO 56. HIGHS 76 TO
86. SOUTHWEST WIND UP TO 10 MPH.
MONDAY
PARTLY CLOUDY. LOWS 45 TO 53. HIGHS 82 TO 89.
TUESDAY
PARTLY CLOUDY. LOWS 48 TO 56. HIGHS 77 TO 83.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ709-261330-
LOWER PALOUSE - SNAKE RIVER (ZONE 709)-
INCLUDING THE CITY OF POMEROY
250 PM PDT TUE AUG 25 2026
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM WEDNESDAY AFTERNOON
THROUGH WEDNESDAY EVENING...
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM THURSDAY AFTERNOON
THROUGH THURSDAY EVENING...
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....62-68.
* 24 HR TREND........1 DEGREE WARMER.
* MAX HUMIDITY........35-50 PERCENT.
* 24 HR TREND........5 PERCENT WETTER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 6 MPH.
* MIXING HEIGHT.......4500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (352) IN THE EVENING DECREASING TO
LOW (51) OVERNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY. HAZE AND SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....90-100.
* 24 HR TREND........3 DEGREES COOLER.
* MIN HUMIDITY........17-21 PERCENT.
* 24 HR TREND........3 PERCENT WETTER.
* 20-FOOT WINDS.......WEST 3 TO 11 MPH.
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (281) IN THE MORNING INCREASING TO
VERY HIGH (825) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
HAZE AND SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....62-66.
* MAX HUMIDITY........40-50 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 10 MPH.
* MIXING HEIGHT.......4500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (629) IN THE EVENING DECREASING TO LOW
(71) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....82-92.
* MIN HUMIDITY........21-29 PERCENT.
* 20-FOOT WINDS.......WEST 3 TO 11 MPH.
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (446) IN THE MORNING INCREASING TO
VERY HIGH (933) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY THROUGH SATURDAY
MOSTLY CLEAR. LOWS 54 TO 60. HIGHS
76 TO 86. SOUTHWEST WIND 4 TO 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS IN THE LOWER TO MID 50S. HIGHS 77 TO
87. SOUTHWEST WIND UP TO 5 MPH.
MONDAY
MOSTLY CLEAR. A CHANCE OF RAIN SHOWERS. LOWS 50 TO 55.
HIGHS 81 TO 91.
TUESDAY
PARTLY CLOUDY. LOWS IN THE MID TO UPPER 50S. HIGHS
76 TO 85.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ706-261330-
WATERVILLE PLATEAU (ZONE 706)-
INCLUDING THE CITIES OF WATERVILLE AND GRAND COULEE
250 PM PDT TUE AUG 25 2026
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM WEDNESDAY AFTERNOON
THROUGH WEDNESDAY EVENING...
...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....61-67.
* 24 HR TREND........3 DEGREES WARMER.
* MAX HUMIDITY........40-50 PERCENT.
* 24 HR TREND........5 PERCENT DRIER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTH 3 TO 6 MPH IN THE EVENING SHIFTING TO
THE NORTHWEST 3 TO 7 MPH OVERNIGHT.
* MIXING HEIGHT.......8500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (665) IN THE EVENING DECREASING TO LOW
(49) OVERNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....90-96.
* 24 HR TREND........1 DEGREE COOLER.
* MIN HUMIDITY........17-21 PERCENT.
* 24 HR TREND........UNCHANGED.
* 20-FOOT WINDS.......NORTHEAST 3 TO 7 MPH IN THE MORNING SHIFTING
TO THE SOUTH 4 TO 11 MPH WITH GUSTS TO AROUND 25 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (217) IN THE MORNING INCREASING TO
VERY HIGH (1240) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....58-65.
* MAX HUMIDITY........45-50 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTHWEST 4 TO 11 MPH WITH GUSTS TO AROUND 25
MPH.
* MIXING HEIGHT.......8500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...VERY HIGH (1140) IN THE EVENING DECREASING TO
LOW (52) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........PARTLY SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....81-88.
* MIN HUMIDITY........20-24 PERCENT.
* 20-FOOT WINDS.......SOUTHWEST 15 TO 25 MPH. GUSTS UP TO 35 MPH
IN THE AFTERNOON.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 20 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (469) IN THE MORNING INCREASING TO
VERY HIGH (1485) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY THROUGH SUNDAY
MOSTLY CLEAR. LOWS 50 TO 59. HIGHS 75 TO
85. SOUTHWEST WIND UP TO 10 MPH.
MONDAY
PARTLY CLOUDY. LOWS 52 TO 58. HIGHS 80 TO 86.
TUESDAY
PARTLY CLOUDY. LOWS 52 TO 58. HIGHS 75 TO 81.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ705-261330-
FOOTHILLS OF CENTRAL WASHINGTON CASCADES (ZONE 705)-
INCLUDING THE CITIES OF CHELAN AND WENATCHEE
250 PM PDT TUE AUG 25 2026
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM WEDNESDAY AFTERNOON
THROUGH WEDNESDAY EVENING...
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM THURSDAY AFTERNOON
THROUGH THURSDAY EVENING...
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. HAZE AND SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....63-69.
* 24 HR TREND........1 DEGREE WARMER.
* MAX HUMIDITY........40-50 PERCENT.
* 24 HR TREND........5 PERCENT DRIER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......WEST UP TO 8 MPH.
* MIXING HEIGHT.......7500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (624) IN THE EVENING DECREASING TO LOW
(53) OVERNIGHT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY. HAZE AND SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....88-98.
* 24 HR TREND........1 DEGREE WARMER.
* MIN HUMIDITY........18-25 PERCENT.
* 24 HR TREND........2 PERCENT WETTER.
* 20-FOOT WINDS.......NORTHWEST UP TO 6 MPH IN THE MORNING SHIFTING
TO THE SOUTH 3 TO 9 MPH WITH GUSTS TO AROUND 20 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (256) IN THE MORNING INCREASING TO
VERY HIGH (1175) IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY. SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....56-66.
* MAX HUMIDITY........45-55 PERCENT.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......WEST 3 TO 12 MPH.
* MIXING HEIGHT.......6000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...VERY HIGH (888) IN THE EVENING DECREASING TO
LOW (61) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....77-87.
* MIN HUMIDITY........22-30 PERCENT.
* 20-FOOT WINDS.......WEST 5 TO 12 MPH. GUSTS UP TO 25 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....WEST 10 TO 20 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (495) IN THE MORNING INCREASING TO
VERY HIGH (1083) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY THROUGH SUNDAY
MOSTLY CLEAR. LOWS 51 TO 61. HIGHS 74 TO
84. SOUTHWEST WIND 4 TO 15 MPH.
MONDAY
PARTLY CLOUDY. LOWS 53 TO 61. HIGHS 77 TO 87.
TUESDAY
PARTLY CLOUDY. LOWS 53 TO 61. HIGHS 71 TO 81.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
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