309
FNUS56 KOTX 261144
FWFOTX
FIRE WEATHER PLANNING FORECAST FOR EASTERN WASHINGTON AND NORTH IDAHO
NATIONAL WEATHER SERVICE SPOKANE WA
444 AM PDT WED AUG 26 2026
...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING FOR FIRE ZONES 703, 706...
DISCUSSION
CENTRAL WA:
- HOT, DRY, UNSTABLE, AND BREEZY WEDNESDAY AFTERNOON.
- WIND SHIFT FROM SOUTH AND SOUTHEAST TO WEST LATE AFTERNOON AND
EVENING CASCADE VALLEYS INTO WESTERN COLUMBIA BASIN.
EASTERN WA:
- HOT, DRY, AND BREEZY WEDNESDAY AFTERNOON.
- SLIGHT T-STORM CHANCES NORTHERN MOUNTAINS WEDNESDAY PM.
NORTH ID:
- HOT, DRY, AND BREEZY WEDNESDAY AFTERNOON.
- SLIGHT T-STORM CHANCES NORTHERN MOUNTAINS WEDNESDAY PM.
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).
***************************************************************
WAZ696-698-270230-
EAST WASHINGTON CENTRAL CASCADES (ZONE 696)-
EAST WASHINGTON NORTH CASCADES (ZONE 698)-
INCLUDING THE CITIES OF STEVENS PASS, LAKE WENATCHEE AREA,
AND LEAVENWORTH
444 AM PDT WED AUG 26 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. HAZE AND AREAS OF SMOKE.
* 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 VALLEYS, AND 12 PERCENT WETTER
MOUNTAINS.
* 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.....SOUTH 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (749) IN THE MORNING INCREASING TO VERY
HIGH (1393) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. AREAS OF SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....54-64 VALLEYS AND 47-57 MOUNTAINS.
* 24 HR TREND........5 DEGREES COOLER.
* MAX HUMIDITY........55-70 PERCENT.
* 24 HR TREND........15 PERCENT WETTER VALLEYS, AND 25 PERCENT
WETTER MOUNTAINS.
* HUMIDITY RECOVERY...FAIR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST 3 TO 11 MPH WITH GUSTS TO AROUND 25
MPH.
* RIDGES/UPR SLOPES....WEST 3 TO 11 MPH.
* MIXING HEIGHT.......5000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...VERY HIGH (944) IN THE EVENING DECREASING TO
LOW (60) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........PARTLY SUNNY. PATCHY SMOKE IN THE AFTERNOON.
* 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 12 MPH WITH GUSTS TO AROUND 25
MPH.
* RIDGES/UPR SLOPES....WEST 3 TO 12 MPH. GUSTS UP TO 25 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (469) IN THE MORNING INCREASING TO
VERY HIGH (1045) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY...PARTLY CLOUDY. LOWS 50 TO 60 VALLEYS
42 TO
52 MOUNTAINS. HIGHS 71 TO 81 VALLEYS...60 TO 70 MOUNTAINS. WEST
WIND UP TO 10 MPH.
SATURDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 49 TO
59 VALLEYS...41 TO 51 MOUNTAINS. HIGHS 66 TO 76 VALLEYS...55 TO
65 MOUNTAINS. WEST WIND 5 TO 15 MPH.
SUNDAY...PARTLY CLOUDY. LOWS 46 TO 56 VALLEYS
39 TO
49 MOUNTAINS. HIGHS 73 TO 83 VALLEYS...61 TO 71 MOUNTAINS. WEST
WIND UP TO 10 MPH.
MONDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 51 TO
61 VALLEYS...43 TO 53 MOUNTAINS. HIGHS 72 TO 82 VALLEYS...60 TO
70 MOUNTAINS.
TUESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 50 TO
60 VALLEYS...43 TO 53 MOUNTAINS. HIGHS 66 TO 76 VALLEYS...55 TO
65 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ697-270230-
EAST PORTION OF NORTH CASCADES NATIONAL PARK/LAKE CHELAN NATIONAL
RECREATION AREA (ZONE 697)-
INCLUDING THE CITY OF STEHEKIN
444 AM PDT WED AUG 26 2026
TODAY
* SKY/WEATHER.........SUNNY. HAZE AND PATCHY SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....85-95 VALLEYS AND 73-83 MOUNTAINS.
* 24 HR TREND........2 DEGREES COOLER.
* MIN HUMIDITY........25-40 PERCENT.
* 24 HR TREND........2 PERCENT WETTER VALLEYS, AND 8 PERCENT WETTER
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTHWEST 3 TO 11 MPH. GUSTS UP TO 20 MPH IN
THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 11 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...HIGH (654) IN THE MORNING INCREASING TO VERY
HIGH (1080) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. HAZE AND PATCHY SMOKE IN THE
EVENING.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....54-64 VALLEYS AND 45-55 MOUNTAINS.
* 24 HR TREND........7 DEGREES COOLER.
* MAX HUMIDITY........55-70 PERCENT.
* 24 HR TREND........5 PERCENT WETTER VALLEYS, AND 10 PERCENT
WETTER MOUNTAINS.
* HUMIDITY RECOVERY...FAIR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST 3 TO 11 MPH. GUSTS UP TO 20 MPH IN
THE EVENING.
* RIDGES/UPR SLOPES....WEST 3 TO 11 MPH. GUSTS UP TO 20 MPH IN
THE EVENING.
* MIXING HEIGHT.......2500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (277) IN THE EVENING DECREASING TO
LOW (36) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........MOSTLY SUNNY. PATCHY SMOKE LATE IN THE
AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....72-82 VALLEYS AND 60-70 MOUNTAINS.
* MIN HUMIDITY........40-55 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST 3 TO 12 MPH.
* RIDGES/UPR SLOPES....WEST 3 TO 12 MPH. GUSTS UP TO 25 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (376) IN THE MORNING INCREASING TO
HIGH (733) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY...PARTLY CLOUDY. LOWS 52 TO 61 VALLEYS
42 TO
52 MOUNTAINS. HIGHS 71 TO 81 VALLEYS...59 TO 69 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 65 TO 75 VALLEYS...52 TO
62 MOUNTAINS. WEST WIND 5 TO 10 MPH.
SUNDAY...PARTLY CLOUDY. LOWS 47 TO 56 VALLEYS
38 TO
48 MOUNTAINS. HIGHS 73 TO 83 VALLEYS...61 TO 71 MOUNTAINS. WEST
WIND UP TO 5 MPH.
MONDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 51 TO
61 VALLEYS...43 TO 53 MOUNTAINS. HIGHS 72 TO 82 VALLEYS...59 TO
69 MOUNTAINS.
TUESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 51 TO
61 VALLEYS...42 TO 52 MOUNTAINS. HIGHS 65 TO 75 VALLEYS...53 TO
63 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ704-270230-
METHOW VALLEY (ZONE 704)-
INCLUDING THE CITIES OF MAZAMA, WINTHROP, AND TWISP
444 AM PDT WED AUG 26 2026
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM THIS AFTERNOON
THROUGH THIS EVENING...
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM THURSDAY AFTERNOON
THROUGH THURSDAY EVENING...
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. HAZE AND PATCHY SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....88-97.
* 24 HR TREND........1 DEGREE WARMER.
* MIN HUMIDITY........17-20 PERCENT.
* 24 HR TREND........1 PERCENT DRIER.
* 20-FOOT WINDS.......NORTH UP TO 5 MPH IN THE MORNING SHIFTING TO
THE SOUTH 5 TO 11 MPH WITH GUSTS UP TO 20 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 (455) IN THE MORNING INCREASING TO
VERY HIGH (1394) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. AREAS OF SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....53-63.
* 24 HR TREND........3 DEGREES COOLER.
* MAX HUMIDITY........50-65 PERCENT.
* 24 HR TREND........10 PERCENT WETTER.
* HUMIDITY RECOVERY...FAIR.
* 20-FOOT WINDS.......NORTHWEST 3 TO 8 MPH. GUSTS UP TO 20 MPH IN
THE EVENING.
* MIXING HEIGHT.......7000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....NORTHWEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...VERY HIGH (993) IN THE EVENING DECREASING TO
LOW (52) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........PARTLY SUNNY. PATCHY SMOKE IN THE AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....79-88.
* MIN HUMIDITY........19-26 PERCENT.
* 20-FOOT WINDS.......WEST 3 TO 13 MPH. GUSTS UP TO 25 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....WEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (400) IN THE MORNING INCREASING TO
VERY HIGH (1208) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
MOSTLY CLEAR. LOWS 48 TO 58. HIGHS 76 TO 85. WEST WIND
UP TO 10 MPH.
SATURDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 48 TO
58. HIGHS 71 TO 79. NORTHWEST WIND UP TO 10 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 45 TO 55. HIGHS 75 TO 83. SOUTHWEST
WIND UP TO 5 MPH.
MONDAY
PARTLY CLOUDY. LOWS 49 TO 59. HIGHS 75 TO 84.
TUESDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS. LOWS
49 TO 59. HIGHS 71 TO 80.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ703-270230-
OKANOGAN VALLEY (ZONE 703)-
INCLUDING THE CITIES OF CONCONULLY AND OMAK
444 AM PDT WED AUG 26 2026
...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM THIS AFTERNOON
THROUGH THIS EVENING...
TODAY
* SKY/WEATHER.........SUNNY. HAZE IN THE MORNING. PATCHY SMOKE
THROUGH THE DAY. HAZE LATE IN THE AFTERNOON. A CHANCE OF RAIN
SHOWERS IN THE AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....89-97.
* 24 HR TREND........3 DEGREES WARMER.
* MIN HUMIDITY........17-22 PERCENT.
* 24 HR TREND........2 PERCENT WETTER.
* 20-FOOT WINDS.......NORTH 3 TO 6 MPH IN THE MORNING SHIFTING TO
THE SOUTH 3 TO 11 MPH WITH GUSTS UP TO 20 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......10000 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST 10 TO 20 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (223) IN THE MORNING INCREASING TO
VERY HIGH (1412) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
HAZE AND AREAS OF SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....59-64.
* 24 HR TREND........2 DEGREES COOLER.
* MAX HUMIDITY........45-60 PERCENT.
* 24 HR TREND........10 PERCENT WETTER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 10 MPH. GUSTS UP TO 20 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 (1230) IN THE EVENING DECREASING TO
LOW (40) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........PARTLY SUNNY. PATCHY SMOKE THROUGH THE DAY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....81-89.
* MIN HUMIDITY........18-26 PERCENT.
* 20-FOOT WINDS.......SOUTH 3 TO 6 MPH IN THE MORNING INCREASING
TO 15 TO 25 MPH WITH GUSTS TO AROUND 35 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 20 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (506) IN THE MORNING INCREASING TO VERY
HIGH (1558) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
MOSTLY CLEAR. LOWS 52 TO 58. HIGHS 76 TO 85. WEST WIND
UP TO 10 MPH.
SATURDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 52 TO
58. HIGHS 71 TO 80. NORTHWEST WIND 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 49 TO 55. HIGHS 74 TO 83. SOUTHWEST
WIND UP TO 10 MPH.
MONDAY
PARTLY CLOUDY. LOWS 52 TO 58. HIGHS 77 TO 85.
TUESDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS. LOWS
53 TO 58. HIGHS 73 TO 81.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ702-270230-
COLVILLE RESERVATION (ZONE 702)-
INCLUDING THE CITIES OF NESPELEM AND KELLER
444 AM PDT WED AUG 26 2026
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM THIS AFTERNOON
THROUGH THIS EVENING...
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM THURSDAY AFTERNOON
THROUGH THURSDAY EVENING...
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. PATCHY SMOKE AND HAZE 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........18-25 PERCENT.
* 24 HR TREND........5 PERCENT WETTER.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST 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 (480) IN THE MORNING INCREASING TO
VERY HIGH (1329) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
AREAS OF SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....59-64.
* 24 HR TREND........3 DEGREES COOLER.
* MAX HUMIDITY........40-50 PERCENT.
* 24 HR TREND........5 PERCENT WETTER.
* 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 (1157) IN THE EVENING DECREASING TO
LOW (44) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........PARTLY SUNNY. AREAS OF SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....78-88 VALLEYS AND 71-81 MOUNTAINS.
* MIN HUMIDITY........20-27 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH 3 TO 14 MPH. GUSTS UP TO 30 MPH IN THE
AFTERNOON.
* RIDGES/UPR SLOPES....SOUTH 3 TO 14 MPH. GUSTS UP TO 30 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......8000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 20 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (585) IN THE MORNING INCREASING TO VERY
HIGH (1371) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY...MOSTLY CLEAR. LOWS 50 TO 56. HIGHS 74 TO 84 VALLEYS
67 TO 77 MOUNTAINS. SOUTHWEST WIND UP TO 10 MPH.
SATURDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 50 TO
56. HIGHS 70 TO 80 VALLEYS...62 TO 72 MOUNTAINS. WEST WIND UP TO
10 MPH.
SUNDAY...PARTLY CLOUDY. LOWS 47 TO 53. HIGHS 72 TO 81 VALLEYS
65 TO 75 MOUNTAINS. SOUTHWEST WIND UP TO 5 MPH.
MONDAY...PARTLY CLOUDY. LOWS 50 TO 55. HIGHS 75 TO 85 VALLEYS
68 TO 78 MOUNTAINS.
TUESDAY...MOSTLY CLOUDY. LOWS 51 TO 57. HIGHS 71 TO 80 VALLEYS
64 TO 73 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ699-270230-
OKANOGAN HIGHLANDS AND KETTLE MOUNTAINS (ZONE 699)-
INCLUDING THE CITIES OF REPUBLIC AND CURLEW
444 AM PDT WED AUG 26 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. A 10 PERCENT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON..
* CHANCE OF LIGHTNING...10 PERCENT.
* MAX TEMPERATURE.....88-98 VALLEYS AND 79-89 MOUNTAINS.
* 24 HR TREND........1 DEGREE WARMER.
* MIN HUMIDITY........19-27 PERCENT.
* 24 HR TREND........4 PERCENT WETTER.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST UP TO 4 MPH IN THE MORNING
SHIFTING TO THE SOUTH 3 TO 8 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....EAST 3 TO 5 MPH IN THE MORNING SHIFTING TO
THE SOUTH 3 TO 8 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......9500 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST 10 TO 20 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (585) IN THE MORNING INCREASING TO VERY
HIGH (1661) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
AREAS OF SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....55-63.
* 24 HR TREND........1 DEGREE COOLER.
* MAX HUMIDITY........50-65 PERCENT VALLEYS AND 40-55 PERCENT
MOUNTAINS.
* 24 HR TREND........5 PERCENT WETTER VALLEYS, AND 10 PERCENT
WETTER MOUNTAINS.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH UP TO 7 MPH.
* RIDGES/UPR SLOPES....SOUTH UP TO 7 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 (1150) IN THE EVENING DECREASING TO
LOW (56) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........PARTLY SUNNY. AREAS OF SMOKE EARLY IN THE
MORNING, THEN PATCHY SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....80-90 VALLEYS AND 72-80 MOUNTAINS.
* MIN HUMIDITY........20-28 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.......9000 FT AGL.
* TRANSPORT WINDS.....SOUTH 10 TO 20 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...VERY HIGH (825) IN THE MORNING INCREASING TO
VERY HIGH (1536) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY...PARTLY CLOUDY. LOWS 47 TO 55. HIGHS 74 TO 84 VALLEYS
67 TO 76 MOUNTAINS. SOUTHWEST WIND UP TO 10 MPH.
SATURDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 46 TO
55. HIGHS 69 TO 78 VALLEYS...61 TO 70 MOUNTAINS. NORTHWEST WIND
UP TO 5 MPH.
SUNDAY...PARTLY CLOUDY. LOWS 43 TO 51. HIGHS 73 TO 82 VALLEYS
65 TO 75 MOUNTAINS. SOUTHWEST WIND UP TO 5 MPH.
MONDAY...PARTLY CLOUDY. LOWS 45 TO 54. HIGHS 75 TO 85 VALLEYS
67 TO 77 MOUNTAINS.
TUESDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS. LOWS
47 TO 55. HIGHS 70 TO 79 VALLEYS...63 TO 72 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ700-701-270230-
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
444 AM PDT WED AUG 26 2026
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM THURSDAY AFTERNOON
THROUGH THURSDAY EVENING...
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. PATCHY SMOKE THROUGH THE DAY.
HAZE IN THE AFTERNOON. A CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* CHANCE OF LIGHTNING...10 PERCENT.
* MAX TEMPERATURE.....89-97 VALLEYS AND 80-90 MOUNTAINS.
* 24 HR TREND........1 DEGREE WARMER.
* MIN HUMIDITY........19-28 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 WITH GUSTS TO AROUND 20 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. GUSTS UP TO 20 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 (362) IN THE MORNING INCREASING TO
VERY HIGH (1304) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
HAZE AND PATCHY SMOKE THROUGH THE NIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....55-63.
* 24 HR TREND........UNCHANGED.
* MAX HUMIDITY........45-60 PERCENT.
* 24 HR TREND........UNCHANGED VALLEYS, AND 5 PERCENT WETTER
MOUNTAINS.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH UP TO 6 MPH. GUSTS UP TO 15 MPH
IN THE EVENING.
* RIDGES/UPR SLOPES....SOUTH UP TO 7 MPH. GUSTS UP TO 20 MPH
IN THE EVENING.
* 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 (798) IN THE EVENING DECREASING TO LOW
(38) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........PARTLY SUNNY. AREAS OF SMOKE EARLY IN THE
MORNING, THEN PATCHY SMOKE IN THE LATE MORNING AND AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....80-88 VALLEYS AND 71-81 MOUNTAINS.
* MIN HUMIDITY........23-30 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH UP TO 11 MPH. GUSTS UP TO 25 MPH IN
THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTH 3 TO 12 MPH. GUSTS UP TO 30 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....SOUTH 10 TO 20 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (516) IN THE MORNING INCREASING TO VERY
HIGH (1441) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY...MOSTLY CLEAR. LOWS 46 TO 55. HIGHS 74 TO 81 VALLEYS
65 TO 75 MOUNTAINS. SOUTH WIND UP TO 10 MPH.
SATURDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 45 TO
55. HIGHS 70 TO 77 VALLEYS...59 TO 69 MOUNTAINS. SOUTHWEST WIND
UP TO 10 MPH.
SUNDAY...PARTLY CLOUDY. LOWS 41 TO 51. HIGHS 73 TO 79 VALLEYS
63 TO 72 MOUNTAINS. SOUTHWEST WIND UP TO 5 MPH.
MONDAY...PARTLY CLOUDY. LOWS 43 TO 53. HIGHS 77 TO 84 VALLEYS
66 TO 76 MOUNTAINS.
TUESDAY...MOSTLY CLOUDY. LOWS 46 TO 56. HIGHS 71 TO 78 VALLEYS
61 TO 71 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
IDZ101-270230-
NORTHERN AND CENTRAL IDAHO PANHANDLE (ZONE 101)-
INCLUDING THE CITIES OF ST. MARIES, RATHDRUM PRAIRIE,
SILVER VALLEY, BONNERS FERRY, AND PRIEST LAKE
444 AM PDT WED AUG 26 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. HAZE AND PATCHY SMOKE. A
CHANCE OF THUNDERSTORMS MAINLY IN THE AFTERNOON.
* CHANCE OF LIGHTNING...20 PERCENT.
* MAX TEMPERATURE.....91-98 VALLEYS AND 82-92 MOUNTAINS.
* 24 HR TREND........UNCHANGED.
* MIN HUMIDITY........20-30 PERCENT.
* 24 HR TREND........4 PERCENT WETTER.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST 3 TO 5 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.......10500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...VERY HIGH (917) IN THE MORNING INCREASING TO
VERY HIGH (1788) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY. HAZE
AND PATCHY SMOKE THROUGH THE NIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....56-64.
* 24 HR TREND........2 DEGREES COOLER.
* MAX HUMIDITY........50-65 PERCENT.
* 24 HR TREND........5 PERCENT DRIER VALLEYS, AND 5 PERCENT WETTER
MOUNTAINS.
* HUMIDITY RECOVERY...FAIR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH UP TO 6 MPH.
* RIDGES/UPR SLOPES....SOUTH UP TO 6 MPH.
* MIXING HEIGHT.......3500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (463) IN THE EVENING DECREASING TO
LOW (39) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........PARTLY SUNNY. PATCHY SMOKE THROUGH THE DAY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....81-88 VALLEYS AND 72-82 MOUNTAINS.
* MIN HUMIDITY........25-40 PERCENT.
* 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 25 MPH
IN THE AFTERNOON.
* MIXING HEIGHT.......7500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 20 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (330) IN THE MORNING INCREASING TO
VERY HIGH (1232) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY...MOSTLY CLEAR. LOWS 49 TO 58. HIGHS 75 TO 81 VALLEYS
66 TO 76 MOUNTAINS. SOUTHWEST WIND UP TO 10 MPH.
SATURDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 47 TO
56. HIGHS 69 TO 76 VALLEYS...60 TO 70 MOUNTAINS. SOUTHWEST WIND
UP TO 10 MPH.
SUNDAY...PARTLY CLOUDY. LOWS 42 TO 51. HIGHS 72 TO 78 VALLEYS
62 TO 72 MOUNTAINS. SOUTHWEST WIND UP TO 5 MPH.
MONDAY...MOSTLY CLEAR. LOWS 44 TO 53. HIGHS 78 TO 84 VALLEYS
69 TO 79 MOUNTAINS.
TUESDAY...PARTLY CLOUDY. LOWS 47 TO 56. HIGHS 71 TO 77 VALLEYS
62 TO 72 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ707-270230-
WESTERN COLUMBIA BASIN (ZONE 707)-
INCLUDING THE CITIES OF MOSES LAKE AND EPHRATA
444 AM PDT WED AUG 26 2026
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM THIS AFTERNOON
THROUGH THIS EVENING...
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM THURSDAY AFTERNOON
THROUGH THURSDAY EVENING...
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. HAZE AND PATCHY SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....92-98.
* 24 HR TREND........1 DEGREE COOLER.
* MIN HUMIDITY........17-26 PERCENT.
* 24 HR TREND........4 PERCENT WETTER.
* 20-FOOT WINDS.......SOUTHEAST 3 TO 6 MPH IN THE MORNING SHIFTING
TO THE SOUTH 3 TO 12 MPH WITH GUSTS TO AROUND 20 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......8500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (206) IN THE MORNING INCREASING TO
VERY HIGH (1263) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
HAZE AND PATCHY SMOKE THROUGH THE NIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....59-66.
* 24 HR TREND........UNCHANGED.
* MAX HUMIDITY........50-65 PERCENT.
* 24 HR TREND........20 PERCENT WETTER.
* HUMIDITY RECOVERY...FAIR.
* 20-FOOT WINDS.......SOUTHWEST 4 TO 11 MPH. GUSTS UP TO 20 MPH IN
THE EVENING.
* MIXING HEIGHT.......7500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...VERY HIGH (1181) IN THE EVENING DECREASING TO
LOW (54) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
PATCHY SMOKE EARLY IN THE MORNING.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....84-89.
* MIN HUMIDITY........19-29 PERCENT.
* 20-FOOT WINDS.......SOUTHWEST 6 TO 17 MPH. GUSTS UP TO 20 MPH IN
THE MORNING INCREASING TO 30 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......9000 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 (1558) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY THROUGH SUNDAY
MOSTLY CLEAR. LOWS 48 TO 58. HIGHS 75 TO
85. SOUTHWEST WIND UP TO 10 MPH.
MONDAY THROUGH TUESDAY
PARTLY CLOUDY. LOWS 49 TO 59. HIGHS
77 TO 86.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ708-270230-
EASTERN COLUMBIA BASIN - PALOUSE - SPOKANE AREA (ZONE 708)-
INCLUDING THE CITIES OF SPOKANE, PULLMAN, RITZVILLE, WILBUR,
AND CHENEY
444 AM PDT WED AUG 26 2026
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM THIS AFTERNOON
THROUGH THIS EVENING...
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM THURSDAY AFTERNOON
THROUGH THURSDAY EVENING...
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. HAZE AND PATCHY SMOKE THROUGH
THE DAY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....92-97.
* 24 HR TREND........1 DEGREE COOLER.
* MIN HUMIDITY........18-22 PERCENT.
* 24 HR TREND........5 PERCENT WETTER.
* 20-FOOT WINDS.......SOUTHEAST 3 TO 6 MPH IN THE MORNING SHIFTING
TO THE SOUTHWEST 4 TO 11 MPH WITH GUSTS TO AROUND 20 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......6500 FT AGL.
* TRANSPORT WINDS.....SOUTH 10 TO 20 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (234) IN THE MORNING INCREASING TO
VERY HIGH (1017) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
HAZE AND PATCHY SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....58-64.
* 24 HR TREND........1 DEGREE COOLER.
* MAX HUMIDITY........45-55 PERCENT.
* 24 HR TREND........5 PERCENT WETTER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 10 MPH. GUSTS UP TO 20 MPH IN
THE EVENING.
* 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 (882) IN THE EVENING DECREASING TO
LOW (53) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
PATCHY SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....83-90.
* MIN HUMIDITY........23-28 PERCENT.
* 20-FOOT WINDS.......SOUTHWEST 5 TO 16 MPH. GUSTS UP TO 20 MPH IN
THE MORNING INCREASING 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 (500) IN THE MORNING INCREASING TO VERY
HIGH (1391) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
MOSTLY CLEAR. LOWS 48 TO 57. HIGHS 78 TO 85. SOUTHWEST
WIND 5 TO 10 MPH.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. LOWS 44 TO 54. HIGHS
73 TO 83. SOUTHWEST WIND UP TO 10 MPH.
MONDAY
MOSTLY CLEAR. LOWS 44 TO 53. HIGHS 81 TO 88.
TUESDAY
PARTLY CLOUDY. LOWS 48 TO 55. HIGHS 75 TO 82.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ709-270230-
LOWER PALOUSE - SNAKE RIVER (ZONE 709)-
INCLUDING THE CITY OF POMEROY
444 AM PDT WED AUG 26 2026
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM THIS AFTERNOON
THROUGH THIS EVENING...
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM THURSDAY AFTERNOON
THROUGH THURSDAY EVENING...
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. HAZE AND PATCHY SMOKE THROUGH
THE DAY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....90-100.
* 24 HR TREND........3 DEGREES COOLER.
* MIN HUMIDITY........16-23 PERCENT.
* 24 HR TREND........4 PERCENT WETTER.
* 20-FOOT WINDS.......WEST 3 TO 14 MPH. GUSTS UP TO 25 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 TO 20 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (282) IN THE MORNING INCREASING TO
VERY HIGH (864) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
HAZE AND PATCHY SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....63-66.
* 24 HR TREND........2 DEGREES WARMER.
* MAX HUMIDITY........40-50 PERCENT.
* 24 HR TREND........5 PERCENT WETTER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 12 MPH WITH GUSTS TO AROUND 25
MPH.
* MIXING HEIGHT.......4500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (646) IN THE EVENING DECREASING TO LOW
(72) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
PATCHY SMOKE THROUGH THE DAY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....81-91.
* MIN HUMIDITY........23-30 PERCENT.
* 20-FOOT WINDS.......WEST 3 TO 11 MPH WITH GUSTS TO AROUND 25 MPH.
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....WEST 10 TO 20 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (442) IN THE MORNING INCREASING TO
VERY HIGH (1025) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
MOSTLY CLEAR. LOWS IN THE MID TO UPPER 50S. HIGHS 77 TO
87. WEST WIND UP TO 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 53 TO 58. HIGHS 72 TO 82.
SOUTHWEST WIND 5 TO 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS NEAR 50. HIGHS 75 TO 85. SOUTHWEST
WIND UP TO 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS 50 TO 55. HIGHS 80 TO 90.
TUESDAY
PARTLY CLOUDY. LOWS IN THE MID TO UPPER 50S. HIGHS
75 TO 84.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ706-270230-
WATERVILLE PLATEAU (ZONE 706)-
INCLUDING THE CITIES OF WATERVILLE AND GRAND COULEE
444 AM PDT WED AUG 26 2026
...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM THIS AFTERNOON
THROUGH THIS EVENING...
TODAY
* SKY/WEATHER.........MOSTLY SUNNY. AREAS OF SMOKE EARLY IN THE
MORNING. HAZE THROUGH THE DAY. PATCHY SMOKE IN THE LATE MORNING
AND AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....90-96.
* 24 HR TREND........1 DEGREE COOLER.
* MIN HUMIDITY........18-21 PERCENT.
* 24 HR TREND........1 PERCENT WETTER.
* 20-FOOT WINDS.......EAST 3 TO 7 MPH IN THE MORNING SHIFTING TO
THE SOUTH 4 TO 12 MPH WITH GUSTS TO AROUND 20 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......9000 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (238) IN THE MORNING INCREASING TO
VERY HIGH (1288) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SMOKE IN THE EVENING. HAZE THROUGH THE NIGHT. AREAS OF SMOKE
OVERNIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....59-66.
* 24 HR TREND........2 DEGREES COOLER.
* MAX HUMIDITY........45-50 PERCENT.
* 24 HR TREND........5 PERCENT WETTER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......SOUTHWEST 4 TO 11 MPH WITH GUSTS TO AROUND 25
MPH.
* 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 (1211) IN THE EVENING DECREASING TO
LOW (57) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
PATCHY SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....81-87.
* MIN HUMIDITY........21-26 PERCENT.
* 20-FOOT WINDS.......SOUTHWEST 10 TO 20 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...HIGH (540) IN THE MORNING INCREASING TO VERY
HIGH (1562) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
MOSTLY CLEAR. LOWS 51 TO 58. HIGHS 77 TO 84. WEST WIND
5 TO 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 51 TO 58. HIGHS 72 TO 79. WEST
WIND 5 TO 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 48 TO 55. HIGHS 75 TO 82. SOUTHWEST
WIND 5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. LOWS 52 TO 58. HIGHS 78 TO 84.
TUESDAY
MOSTLY CLOUDY. LOWS 52 TO 58. HIGHS 74 TO 80.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ705-270230-
FOOTHILLS OF CENTRAL WASHINGTON CASCADES (ZONE 705)-
INCLUDING THE CITIES OF CHELAN AND WENATCHEE
444 AM PDT WED AUG 26 2026
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM THIS AFTERNOON
THROUGH THIS EVENING...
...GUSTY WINDS AND LOW RELATIVE HUMIDITY FROM THURSDAY AFTERNOON
THROUGH THURSDAY EVENING...
TODAY
* SKY/WEATHER.........SUNNY. AREAS OF SMOKE AND HAZE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....88-98.
* 24 HR TREND........6 DEGREES WARMER.
* MIN HUMIDITY........18-25 PERCENT.
* 24 HR TREND........1 PERCENT WETTER.
* 20-FOOT WINDS.......NORTHWEST UP TO 6 MPH IN THE MORNING SHIFTING
TO THE SOUTH 3 TO 10 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 (267) IN THE MORNING INCREASING TO
VERY HIGH (1214) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SMOKE IN THE EVENING. HAZE THROUGH THE NIGHT. PATCHY SMOKE
OVERNIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....58-67.
* 24 HR TREND........5 DEGREES COOLER.
* MAX HUMIDITY........40-55 PERCENT.
* 24 HR TREND........5 PERCENT WETTER.
* HUMIDITY RECOVERY...POOR.
* 20-FOOT WINDS.......WEST 3 TO 12 MPH.
* MIXING HEIGHT.......5000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 15 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...VERY HIGH (865) IN THE EVENING DECREASING TO
LOW (62) OVERNIGHT.
THURSDAY
* SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
PATCHY SMOKE.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....77-87.
* MIN HUMIDITY........25-35 PERCENT.
* 20-FOOT WINDS.......WEST 5 TO 15 MPH. GUSTS UP TO 30 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......7000 FT AGL.
* TRANSPORT WINDS.....WEST 10 TO 20 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...HIGH (524) IN THE MORNING INCREASING TO VERY
HIGH (1170) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
MOSTLY CLEAR. LOWS 52 TO 61. HIGHS 75 TO 85. WEST WIND
5 TO 15 MPH.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. LOWS 50 TO 60. HIGHS
72 TO 82. WEST WIND 4 TO 15 MPH.
MONDAY
PARTLY CLOUDY. LOWS 53 TO 61. HIGHS 75 TO 85.
TUESDAY
MOSTLY CLOUDY. LOWS 53 TO 61. HIGHS 70 TO 80.
.8 TO 14 DAY OUTLOOK FOR SEP 02 - 08 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
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