822
FNUS56 KOTX 191035
FWFOTX
FIRE WEATHER PLANNING FORECAST FOR EASTERN WASHINGTON AND NORTH IDAHO
NATIONAL WEATHER SERVICE SPOKANE WA
335 AM PDT SAT SEP 19 2026
DISCUSSION
CENTRAL WA:
- WARM AND DRY SATURDAY TO MONDAY, WITH LIGHT WINDS.
- POOR TO FAIR RELATIVE HUMIDITY RECOVERY IN THE MOUNTAINS WITH
FAIR TO GOOD HUMIDITY RECOVERY IN THE VALLEYS SATURDAY NIGHT.
EASTERN WA:
- WARM AND DRY ON SATURDAY AND SUNDAY WITH MOSTLY LIGHT WINDS.
- SOUTHERLY WINDS WITH GUSTS 15-20 MPH IN THE OKANOGAN VALLEY IN
THE AFTERNOON AND EARLY EVENING.
- FAIR RELATIVE HUMIDITY RECOVERY IN THE MOUNTAINS WITH GOOD TO
EXCELLENT HUMIDITY RECOVERY IN THE VALLEYS SATURDAY NIGHT.
NORTH ID:
- WARM AND DRY ON SATURDAY TO MONDAY WITH LIGHT WINDS.
- FAIR RELATIVE HUMIDITY RECOVERY IN THE MOUNTAINS WITH GOOD TO
EXCELLENT HUMIDITY RECOVERY IN THE VALLEYS SATURDAY NIGHT.
WEATHER TRENDS WARMER AND DRIER WITH LIGHT WINDS AND MOSTLY CLEAR
SKIES THROUGH THE WEEKEND INTO EARLY NEXT WEEK. THIS WILL ALSO
RESULT IN POOR TO FAIR RELATIVE HUMIDITY RECOVERIES IN THE
MOUNTAINS FOR THE NEXT FEW DAYS.
***************************************************************
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).
***************************************************************
WAZ696-698-200345-
EAST WASHINGTON CENTRAL CASCADES (ZONE 696)-
EAST WASHINGTON NORTH CASCADES (ZONE 698)-
INCLUDING THE CITIES OF STEVENS PASS, LAKE WENATCHEE AREA,
AND LEAVENWORTH
335 AM PDT SAT SEP 19 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....74-84 VALLEYS AND 63-73 MOUNTAINS.
* 24 HR TREND........4 DEGREES WARMER VALLEYS, AND 2 DEGREES COOLER
MOUNTAINS.
* MIN HUMIDITY........20-30 PERCENT VALLEYS AND 25-40 PERCENT
MOUNTAINS.
* 24 HR TREND........5 PERCENT WETTER.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH 3 TO 6 MPH.
* RIDGES/UPR SLOPES....SOUTH 3 TO 6 MPH.
* MIXING HEIGHT.......4500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (342).
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....51-61 VALLEYS AND 44-54 MOUNTAINS.
* 24 HR TREND........4 DEGREES WARMER.
* MAX HUMIDITY........50-65 PERCENT.
* 24 HR TREND........UNCHANGED VALLEYS, AND 10 PERCENT DRIER
MOUNTAINS.
* HUMIDITY RECOVERY...FAIR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST UP TO 5 MPH IN THE EVENING SHIFTING TO
THE NORTHWEST UP TO 3 MPH OVERNIGHT.
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 5 MPH.
* MIXING HEIGHT.......2000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...LOW (173).
SUNDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....74-84 VALLEYS AND 64-74 MOUNTAINS.
* MIN HUMIDITY........25-40 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHWEST UP TO 3 MPH IN THE MORNING
SHIFTING TO THE SOUTHEAST 3 TO 6 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 6 MPH.
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (259) IN THE MORNING INCREASING TO
MODERATE (475) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
MONDAY THROUGH TUESDAY...PARTLY CLOUDY. LOWS 50 TO 60 VALLEYS
43 TO 53 MOUNTAINS. HIGHS 73 TO 83 VALLEYS...60 TO 70 MOUNTAINS.
WEST WIND UP TO 10 MPH.
WEDNESDAY...MOSTLY CLOUDY. LOWS 46 TO 56 VALLEYS
38 TO
48 MOUNTAINS. HIGHS 65 TO 75 VALLEYS...53 TO 63 MOUNTAINS. WEST
WIND UP TO 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN
SHOWERS. LOWS 46 TO 56 VALLEYS...38 TO 48 MOUNTAINS. HIGHS 62 TO
72 VALLEYS...50 TO 60 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR SEP 26 - OCT 02, 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ697-200345-
EAST PORTION OF NORTH CASCADES NATIONAL PARK/LAKE CHELAN NATIONAL
RECREATION AREA (ZONE 697)-
INCLUDING THE CITY OF STEHEKIN
335 AM PDT SAT SEP 19 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....77-87 VALLEYS AND 65-75 MOUNTAINS.
* 24 HR TREND........UNCHANGED VALLEYS, AND 10 DEGREES WARMER
MOUNTAINS.
* MIN HUMIDITY........21-30 PERCENT.
* 24 HR TREND........8 PERCENT DRIER VALLEYS, AND UNCHANGED
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH UP TO 7 MPH.
* RIDGES/UPR SLOPES....SOUTH UP TO 7 MPH.
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (348).
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....52-61 VALLEYS AND 43-53 MOUNTAINS.
* 24 HR TREND........1 DEGREE WARMER.
* MAX HUMIDITY........45-55 PERCENT VALLEYS AND 50-65 PERCENT
MOUNTAINS.
* 24 HR TREND........5 PERCENT DRIER VALLEYS, AND 25 PERCENT DRIER
MOUNTAINS.
* HUMIDITY RECOVERY...FAIR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTH 3 TO 6 MPH.
* RIDGES/UPR SLOPES....WEST 3 TO 6 MPH IN THE EVENING SHIFTING TO
THE SOUTHEAST 3 TO 5 MPH OVERNIGHT.
* MIXING HEIGHT.......2000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...LOW (138).
SUNDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....79-89 VALLEYS AND 67-77 MOUNTAINS.
* MIN HUMIDITY........21-30 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH 3 TO 6 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 6 MPH.
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (223) IN THE MORNING INCREASING TO
MODERATE (471) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
MONDAY...MOSTLY CLEAR. LOWS 51 TO 61 VALLEYS
43 TO
52 MOUNTAINS. HIGHS 74 TO 84 VALLEYS...62 TO 72 MOUNTAINS. WEST
WIND UP TO 10 MPH.
TUESDAY...PARTLY CLOUDY. LOWS 47 TO 57 VALLEYS
39 TO
49 MOUNTAINS. HIGHS 70 TO 80 VALLEYS...58 TO 68 MOUNTAINS. WEST
WIND UP TO 10 MPH.
WEDNESDAY...MOSTLY CLOUDY. LOWS 45 TO 55 VALLEYS
36 TO
46 MOUNTAINS. HIGHS 66 TO 76 VALLEYS...54 TO 64 MOUNTAINS. WEST
WIND 5 TO 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN
SHOWERS. LOWS 46 TO 55 VALLEYS...37 TO 47 MOUNTAINS. HIGHS 63 TO
73 VALLEYS...51 TO 61 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR SEP 26 - OCT 02, 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ704-200345-
METHOW VALLEY (ZONE 704)-
INCLUDING THE CITIES OF MAZAMA, WINTHROP, AND TWISP
335 AM PDT SAT SEP 19 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....75-85.
* 24 HR TREND........2 DEGREES COOLER.
* MIN HUMIDITY........14-24 PERCENT.
* 24 HR TREND........UNCHANGED.
* 20-FOOT WINDS.......NORTHEAST UP TO 4 MPH IN THE MORNING SHIFTING
TO THE SOUTHEAST 3 TO 6 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......5000 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (355).
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....49-57.
* 24 HR TREND........UNCHANGED.
* MAX HUMIDITY........55-70 PERCENT.
* 24 HR TREND........UNCHANGED.
* HUMIDITY RECOVERY...FAIR.
* 20-FOOT WINDS.......SOUTHEAST UP TO 5 MPH IN THE EVENING SHIFTING
TO THE NORTH UP TO 3 MPH OVERNIGHT.
* MIXING HEIGHT.......2000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....WEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...LOW (176).
SUNDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....76-85.
* MIN HUMIDITY........23-30 PERCENT.
* 20-FOOT WINDS.......LIGHT WINDS IN THE MORNING BECOMING SOUTHEAST
3 TO 7 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......4500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...LOW (171) IN THE MORNING INCREASING TO
MODERATE (411) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
MONDAY THROUGH TUESDAY
PARTLY CLOUDY. LOWS 48 TO 58. HIGHS
74 TO 84. WEST WIND UP TO 5 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS 45 TO 54. HIGHS 68 TO 76. WEST
WIND UP TO 5 MPH.
THURSDAY
MOSTLY CLOUDY. LOWS 45 TO 53. HIGHS 65 TO 73.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 45 TO 54.
HIGHS 62 TO 71.
.8 TO 14 DAY OUTLOOK FOR SEP 26 - OCT 02, 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ703-200345-
OKANOGAN VALLEY (ZONE 703)-
INCLUDING THE CITIES OF CONCONULLY AND OMAK
335 AM PDT SAT SEP 19 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....74-83.
* 24 HR TREND........1 DEGREE WARMER.
* MIN HUMIDITY........22-29 PERCENT.
* 24 HR TREND........4 PERCENT WETTER.
* 20-FOOT WINDS.......NORTHEAST UP TO 4 MPH IN THE MORNING SHIFTING
TO THE SOUTH IN THE AFTERNOON.
* MIXING HEIGHT.......5000 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...LOW (109) IN THE MORNING INCREASING TO
MODERATE (407) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....52-57.
* 24 HR TREND........UNCHANGED.
* MAX HUMIDITY........55-70 PERCENT.
* 24 HR TREND........5 PERCENT WETTER.
* HUMIDITY RECOVERY...FAIR.
* 20-FOOT WINDS.......SOUTH UP TO 6 MPH.
* MIXING HEIGHT.......2000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...LOW (150).
SUNDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....75-83.
* MIN HUMIDITY........24-30 PERCENT.
* 20-FOOT WINDS.......SOUTH UP TO 9 MPH.
* MIXING HEIGHT.......4500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...LOW (185) IN THE MORNING INCREASING TO
MODERATE (411) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
MONDAY
PARTLY CLOUDY. LOWS 52 TO 57. HIGHS 75 TO 84. SOUTHWEST
WIND UP TO 10 MPH.
TUESDAY
PARTLY CLOUDY. LOWS IN THE LOWER TO MID 50S. HIGHS
72 TO 81. NORTHWEST WIND UP TO 5 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS 50 TO 55. HIGHS 68 TO 76. WEST
WIND UP TO 10 MPH.
THURSDAY
MOSTLY CLOUDY. LOWS 49 TO 54. HIGHS 64 TO 73.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 49 TO 54.
HIGHS 62 TO 71.
.8 TO 14 DAY OUTLOOK FOR SEP 26 - OCT 02, 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ702-200345-
COLVILLE RESERVATION (ZONE 702)-
INCLUDING THE CITIES OF NESPELEM AND KELLER
335 AM PDT SAT SEP 19 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....73-83 VALLEYS AND 67-77 MOUNTAINS.
* 24 HR TREND........1 DEGREE WARMER.
* MIN HUMIDITY........25-35 PERCENT.
* 24 HR TREND........2 PERCENT WETTER VALLEYS, AND 8 PERCENT WETTER
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST 3 TO 4 MPH IN THE MORNING SHIFTING TO
THE SOUTH 3 TO 6 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....EAST UP TO 4 MPH IN THE MORNING SHIFTING TO
THE SOUTH 3 TO 5 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......5000 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 5 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (329).
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....50-56.
* 24 HR TREND........1 DEGREE WARMER.
* MAX HUMIDITY........55-70 PERCENT.
* 24 HR TREND........UNCHANGED VALLEYS, AND 5 PERCENT WETTER
MOUNTAINS.
* HUMIDITY RECOVERY...FAIR.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH UP TO 4 MPH IN THE EVENING SHIFTING TO
THE NORTHEAST OVERNIGHT.
* RIDGES/UPR SLOPES....SOUTHWEST 3 TO 4 MPH.
* MIXING HEIGHT.......2500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTH AROUND 5 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...LOW (149).
SUNDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....74-84 VALLEYS AND 67-77 MOUNTAINS.
* MIN HUMIDITY........25-35 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST 3 TO 4 MPH IN THE MORNING SHIFTING TO
THE SOUTH 3 TO 6 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTH 3 TO 5 MPH.
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (408).
FORECAST DAYS 3 THROUGH 7...
MONDAY THROUGH TUESDAY
PARTLY CLOUDY. LOWS 51 TO 57. HIGHS
73 TO 83 VALLEYS...66 TO 76 MOUNTAINS. SOUTH WIND UP TO 5 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS 49 TO 55. HIGHS 66 TO
76 VALLEYS...60 TO 69 MOUNTAINS. SOUTH WIND UP TO 5 MPH.
THURSDAY
MOSTLY CLOUDY. LOWS 47 TO 54. HIGHS 65 TO
75 VALLEYS...58 TO 67 MOUNTAINS.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS. LOWS 47 TO
54. HIGHS 62 TO 72 VALLEYS...55 TO 64 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR SEP 26 - OCT 02, 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ699-200345-
OKANOGAN HIGHLANDS AND KETTLE MOUNTAINS (ZONE 699)-
INCLUDING THE CITIES OF REPUBLIC AND CURLEW
335 AM PDT SAT SEP 19 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....74-84 VALLEYS AND 67-77 MOUNTAINS.
* 24 HR TREND........1 DEGREE WARMER.
* MIN HUMIDITY........20-30 PERCENT.
* 24 HR TREND........4 PERCENT DRIER VALLEYS, AND 4 PERCENT WETTER
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...NORTHEAST UP TO 3 MPH IN THE MORNING
SHIFTING TO THE SOUTH 3 TO 6 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHEAST UP TO 3 MPH IN THE MORNING
SHIFTING TO THE SOUTH 3 TO 5 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...LOW (164) IN THE MORNING INCREASING TO
MODERATE (385) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....47-53.
* 24 HR TREND........UNCHANGED.
* MAX HUMIDITY........61-80 PERCENT VALLEYS AND 55-70 PERCENT
MOUNTAINS.
* 24 HR TREND........10 PERCENT WETTER VALLEYS, AND 5 PERCENT
WETTER MOUNTAINS.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...SOUTH UP TO 4 MPH IN THE EVENING SHIFTING TO
THE SOUTHEAST UP TO 3 MPH OVERNIGHT.
* RIDGES/UPR SLOPES....SOUTH UP TO 4 MPH.
* MIXING HEIGHT.......2500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...LOW (189).
SUNDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....75-85 VALLEYS AND 68-77 MOUNTAINS.
* MIN HUMIDITY........26-35 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...LIGHT WINDS IN THE MORNING BECOMING SOUTH 3
TO 6 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTH UP TO 5 MPH.
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (452).
FORECAST DAYS 3 THROUGH 7...
MONDAY THROUGH TUESDAY
PARTLY CLOUDY. LOWS 47 TO 54. HIGHS
75 TO 85 VALLEYS...66 TO 76 MOUNTAINS. SOUTH WIND UP TO 5 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS 46 TO 52. HIGHS 68 TO
78 VALLEYS...60 TO 69 MOUNTAINS. SOUTH WIND UP TO 5 MPH.
THURSDAY
MOSTLY CLOUDY. LOWS 44 TO 51. HIGHS 66 TO
76 VALLEYS...58 TO 66 MOUNTAINS.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS. LOWS 44 TO
51. HIGHS 63 TO 73 VALLEYS...54 TO 63 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR SEP 26 - OCT 02, 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ700-701-200345-
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
335 AM PDT SAT SEP 19 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....74-82 VALLEYS AND 66-75 MOUNTAINS.
* 24 HR TREND........1 DEGREE WARMER.
* MIN HUMIDITY........25-35 PERCENT.
* 24 HR TREND........UNCHANGED.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...LIGHT WINDS IN THE MORNING BECOMING
SOUTHWEST AROUND 3 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....EAST 3 TO 4 MPH IN THE MORNING SHIFTING TO
THE SOUTHWEST IN THE AFTERNOON.
* MIXING HEIGHT.......5000 FT AGL.
* TRANSPORT WINDS.....SOUTH AROUND 5 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (235).
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....46-53.
* 24 HR TREND........UNCHANGED.
* MAX HUMIDITY........70-80 PERCENT VALLEYS AND 60-75 PERCENT
MOUNTAINS.
* 24 HR TREND........UNCHANGED VALLEYS, AND 5 PERCENT DRIER
MOUNTAINS.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...LIGHT WINDS.
* RIDGES/UPR SLOPES....SOUTH UP TO 4 MPH.
* MIXING HEIGHT.......2000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...LOW (95).
SUNDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....76-83 VALLEYS AND 67-76 MOUNTAINS.
* MIN HUMIDITY........26-30 PERCENT VALLEYS AND 30-40 PERCENT
MOUNTAINS.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...LIGHT WINDS IN THE MORNING BECOMING SOUTH 3
TO 4 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHEAST AROUND 3 MPH IN THE MORNING
SHIFTING TO THE SOUTHWEST 3 TO 4 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......5500 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (372).
FORECAST DAYS 3 THROUGH 7...
MONDAY...MOSTLY CLEAR. LOWS 47 TO 54. HIGHS 76 TO 84 VALLEYS
67 TO 76 MOUNTAINS. SOUTHEAST WIND UP TO 5 MPH.
TUESDAY...PARTLY CLOUDY. LOWS 47 TO 55. HIGHS 74 TO 82 VALLEYS
64 TO 73 MOUNTAINS. SOUTHEAST WIND UP TO 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 47 TO 53. HIGHS 69 TO
76 VALLEYS...60 TO 68 MOUNTAINS. SOUTH WIND UP TO 5 MPH.
THURSDAY
MOSTLY CLOUDY. LOWS 45 TO 51. HIGHS 68 TO
75 VALLEYS...58 TO 67 MOUNTAINS.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS. LOWS 45 TO
51. HIGHS 65 TO 71 VALLEYS...55 TO 64 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR SEP 26 - OCT 02, 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
IDZ101-200345-
NORTHERN AND CENTRAL IDAHO PANHANDLE (ZONE 101)-
INCLUDING THE CITIES OF ST. MARIES, RATHDRUM PRAIRIE,
SILVER VALLEY, BONNERS FERRY, AND PRIEST LAKE
335 AM PDT SAT SEP 19 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....73-80 VALLEYS AND 64-74 MOUNTAINS.
* 24 HR TREND........UNCHANGED.
* MIN HUMIDITY........30-45 PERCENT.
* 24 HR TREND........5 PERCENT WETTER.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST UP TO 3 MPH IN THE MORNING SHIFTING TO
THE WEST 3 TO 4 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....EAST UP TO 5 MPH IN THE MORNING SHIFTING TO
THE WEST 3 TO 4 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......5000 FT AGL.
* TRANSPORT WINDS.....EAST AROUND 5 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (365).
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....47-55.
* 24 HR TREND........2 DEGREES WARMER.
* MAX HUMIDITY........71-90 PERCENT VALLEYS AND 65-80 PERCENT
MOUNTAINS.
* 24 HR TREND........UNCHANGED VALLEYS, AND 10 PERCENT DRIER
MOUNTAINS.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...WEST UP TO 3 MPH IN THE EVENING SHIFTING TO
THE EAST OVERNIGHT.
* RIDGES/UPR SLOPES....WEST 3 TO 4 MPH IN THE EVENING SHIFTING TO
THE SOUTHEAST OVERNIGHT.
* MIXING HEIGHT.......1500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...LOW (86).
SUNDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....75-81 VALLEYS AND 66-76 MOUNTAINS.
* MIN HUMIDITY........30-40 PERCENT.
* 20-FOOT WINDS.......
* VALLEYS/LWR SLOPES...EAST UP TO 3 MPH IN THE MORNING SHIFTING TO
THE SOUTHWEST 3 TO 4 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHEAST 3 TO 4 MPH IN THE MORNING SHIFTING
TO THE WEST 3 TO 5 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (221) IN THE MORNING INCREASING TO
MODERATE (482) IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
MONDAY...MOSTLY CLEAR. LOWS 47 TO 55. HIGHS 76 TO 83 VALLEYS
67 TO 77 MOUNTAINS. SOUTH WIND UP TO 5 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS 48 TO 56. HIGHS
70 TO 80 VALLEYS...64 TO 74 MOUNTAINS. SOUTH WIND UP TO 5 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 46 TO 54. HIGHS 69 TO
75 VALLEYS...61 TO 71 MOUNTAINS.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 46 TO 54.
HIGHS 66 TO 72 VALLEYS...58 TO 68 MOUNTAINS.
.8 TO 14 DAY OUTLOOK FOR SEP 26 - OCT 02, 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ707-200345-
WESTERN COLUMBIA BASIN (ZONE 707)-
INCLUDING THE CITIES OF MOSES LAKE AND EPHRATA
335 AM PDT SAT SEP 19 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....78-82.
* 24 HR TREND........UNCHANGED.
* MIN HUMIDITY........22-30 PERCENT.
* 24 HR TREND........1 PERCENT DRIER.
* 20-FOOT WINDS.......EAST UP TO 5 MPH IN THE MORNING SHIFTING TO
THE SOUTH 3 TO 6 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......4500 FT AGL.
* TRANSPORT WINDS.....SOUTH 0 TO 5 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...LOW (91) IN THE MORNING INCREASING TO
MODERATE (307) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....50-57.
* 24 HR TREND........UNCHANGED.
* MAX HUMIDITY........65-80 PERCENT.
* 24 HR TREND........UNCHANGED.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......SOUTH UP TO 6 MPH IN THE EVENING SHIFTING TO
THE EAST UP TO 4 MPH OVERNIGHT.
* MIXING HEIGHT.......2000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...LOW (126).
SUNDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....79-84.
* MIN HUMIDITY........24-30 PERCENT.
* 20-FOOT WINDS.......NORTHEAST UP TO 5 MPH IN THE MORNING SHIFTING
TO THE SOUTH 3 TO 5 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......5000 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (301).
FORECAST DAYS 3 THROUGH 7...
MONDAY
MOSTLY CLEAR. LOWS 50 TO 57. HIGHS 80 TO 86. WEST WIND
UP TO 5 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 52 TO 58. HIGHS NEAR 80. WEST WIND
UP TO 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 49 TO 55. HIGHS IN THE LOWER TO
MID 70S. SOUTHWEST WIND UP TO 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLOUDY. LOWS 48 TO 54. HIGHS
67 TO 75.
.8 TO 14 DAY OUTLOOK FOR SEP 26 - OCT 02, 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ708-200345-
EASTERN COLUMBIA BASIN - PALOUSE - SPOKANE AREA (ZONE 708)-
INCLUDING THE CITIES OF SPOKANE, PULLMAN, RITZVILLE, WILBUR,
AND CHENEY
335 AM PDT SAT SEP 19 2026
TODAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....77-82.
* 24 HR TREND........1 DEGREE WARMER.
* MIN HUMIDITY........23-30 PERCENT.
* 24 HR TREND........1 PERCENT DRIER.
* 20-FOOT WINDS.......SOUTHEAST UP TO 4 MPH IN THE MORNING SHIFTING
TO THE SOUTHWEST 3 TO 5 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......5000 FT AGL.
* TRANSPORT WINDS.....SOUTHWEST 0 TO 5 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (260).
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....49-54.
* 24 HR TREND........UNCHANGED.
* MAX HUMIDITY........70-80 PERCENT.
* 24 HR TREND........5 PERCENT DRIER.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......SOUTHWEST UP TO 4 MPH IN THE EVENING SHIFTING
TO THE EAST OVERNIGHT.
* MIXING HEIGHT.......2500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHEAST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...LOW (130).
SUNDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....80-86.
* MIN HUMIDITY........23-28 PERCENT.
* 20-FOOT WINDS.......EAST 3 TO 6 MPH IN THE MORNING SHIFTING TO
THE SOUTH 3 TO 4 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......6000 FT AGL.
* TRANSPORT WINDS.....SOUTHEAST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (309).
FORECAST DAYS 3 THROUGH 7...
MONDAY
MOSTLY CLEAR. LOWS 50 TO 56. HIGHS 81 TO 87. SOUTH WIND
UP TO 5 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS 50 TO 57. HIGHS
73 TO 83. SOUTH WIND UP TO 10 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 48 TO 54. HIGHS 72 TO 78.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS 48 TO 53.
HIGHS 68 TO 74.
.8 TO 14 DAY OUTLOOK FOR SEP 26 - OCT 02, 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ709-200345-
LOWER PALOUSE - SNAKE RIVER (ZONE 709)-
INCLUDING THE CITY OF POMEROY
335 AM PDT SAT SEP 19 2026
TODAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....73-83.
* 24 HR TREND........3 DEGREES WARMER.
* MIN HUMIDITY........29-35 PERCENT.
* 24 HR TREND........UNCHANGED.
* 20-FOOT WINDS.......SOUTHWEST 3 TO 6 MPH IN THE MORNING SHIFTING
TO THE NORTHWEST IN THE AFTERNOON.
* MIXING HEIGHT.......4500 FT AGL.
* TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (268).
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....51-56.
* 24 HR TREND........UNCHANGED.
* MAX HUMIDITY........61-80 PERCENT.
* 24 HR TREND........10 PERCENT DRIER.
* HUMIDITY RECOVERY...GOOD.
* 20-FOOT WINDS.......SOUTHEAST UP TO 6 MPH.
* MIXING HEIGHT.......2000 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTHEAST 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...LOW (93).
SUNDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....77-87.
* MIN HUMIDITY........27-35 PERCENT.
* 20-FOOT WINDS.......SOUTHEAST 3 TO 6 MPH IN THE MORNING SHIFTING
TO THE NORTH 3 TO 5 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......5000 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (370).
FORECAST DAYS 3 THROUGH 7...
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS 53 TO 58. HIGHS
78 TO 88. SOUTHWEST WIND UP TO 10 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE 50S. HIGHS 72 TO 81.
SOUTHWEST WIND UP TO 10 MPH.
THURSDAY THROUGH FRIDAY
PARTLY CLOUDY. LOWS 50 TO 55. HIGHS
69 TO 79.
.8 TO 14 DAY OUTLOOK FOR SEP 26 - OCT 02, 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
WAZ705-706-200345-
FOOTHILLS OF CENTRAL WASHINGTON CASCADES (ZONE 705)-
WATERVILLE PLATEAU (ZONE 706)-
INCLUDING THE CITIES OF CHELAN, WENATCHEE, WATERVILLE,
AND GRAND COULEE
335 AM PDT SAT SEP 19 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....75-85.
* 24 HR TREND........2 DEGREES COOLER.
* MIN HUMIDITY........20-27 PERCENT.
* 24 HR TREND........4 PERCENT WETTER.
* 20-FOOT WINDS.......NORTHEAST UP TO 5 MPH IN THE MORNING SHIFTING
TO THE SOUTH 3 TO 6 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......5000 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...LOW (99) IN THE MORNING INCREASING TO
MODERATE (332) IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MIN TEMPERATURE.....51-60.
* 24 HR TREND........UNCHANGED.
* MAX HUMIDITY........60-75 PERCENT.
* 24 HR TREND........UNCHANGED.
* HUMIDITY RECOVERY...FAIR.
* 20-FOOT WINDS.......SOUTHWEST UP TO 6 MPH.
* MIXING HEIGHT.......2500 FT AGL FALLING TO NEAR SURFACE.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...LOW (197).
SUNDAY
* SKY/WEATHER.........SUNNY.
* CHANCE OF LIGHTNING...0 PERCENT.
* MAX TEMPERATURE.....76-85.
* MIN HUMIDITY........23-29 PERCENT.
* 20-FOOT WINDS.......NORTHEAST UP TO 5 MPH IN THE MORNING SHIFTING
TO THE SOUTH 3 TO 6 MPH IN THE AFTERNOON.
* MIXING HEIGHT.......5000 FT AGL.
* TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
* CWR (> 0.10 IN).....0 PERCENT.
* VENTILATION INDEX...MODERATE (353).
FORECAST DAYS 3 THROUGH 7...
MONDAY THROUGH TUESDAY
PARTLY CLOUDY. LOWS 51 TO 60. HIGHS
75 TO 85. WEST WIND UP TO 5 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 48 TO 57. HIGHS 68 TO 77. WEST
WIND UP TO 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLOUDY. LOWS 48 TO 56. HIGHS
64 TO 74.
.8 TO 14 DAY OUTLOOK FOR SEP 26 - OCT 02, 2026
NEAR NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
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