Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Spokane, WA
Issued by NWS Spokane, WA
797
FNUS56 KOTX 212223
FWFOTX
Fire Weather Planning Forecast for Eastern Washington and North Idaho
National Weather Service Spokane WA
323 PM PDT Fri Aug 21 2026
...RED FLAG WARNING IN EFFECT FROM 11 AM SATURDAY TO 8 AM PDT
SUNDAY FOR THUNDERSTORMS FOR FIRE WEATHER ZONES 696, 697, 698,
699, AND 704...
...RED FLAG WARNING IN EFFECT FROM 11AM SATURDAY TO 8 AM PDT
SUNDAY FOR THUNDERSTORMS, WIND, AND LOW RELATIVE HUMIDITY FOR
FIRE WEATHER ZONE 703...
...RED FLAG WARNING IN EFFECT FROM NOON TO 10 PM PDT SATURDAY FOR
WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 701, 702,
705, 706, 707, 708, AND 709...
...RED FLAG WARNING IN EFFECT FROM 4PM SATURDAY TO 11 AM PDT
SUNDAY FOR THUNDERSTORMS FOR FIRE WEATHER ZONES 700 AND 101...
.DISCUSSION...
Central WA:
- Hot and dry with light winds Friday.
- Gusty winds and chances for thunderstorms arrive late Saturday
morning.
- Breezy winds linger through Sunday.
Eastern WA:
- Hot and dry with light winds on Friday.
- Gusty winds and chances for thunderstorms arrive late Saturday
morning.
- Breezy winds linger through Sunday.
North ID:
- Hot and dry with light winds Friday.
- Breezy winds and chances for thunderstorms arrive Saturday
afternoon and evening.
- Breezy to gusty winds persist Sunday.
Hot and dry conditions with light, terrain-driven winds are
forecast for Friday. An incoming storm system and accompanying
cold front will bring the next round of fire weather concerns
Saturday into Sunday with potential for gusty winds, low RH, and
thunderstorms. Breezy winds and lingering shower chances continue
across the northern mountains on Sunday.
***************************************************************
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).
***************************************************************
WAZ696-698-221315-
East Washington Central Cascades (Zone 696)-
East Washington North Cascades (Zone 698)-
Including the cities of Stevens Pass, Lake Wenatchee Area,
and Leavenworth
323 PM PDT Fri Aug 21 2026
...RED FLAG WARNING IN EFFECT FROM 11 AM SATURDAY TO 8 AM PDT
SUNDAY...
.Tonight...
* Sky/Weather.........Mostly cloudy. Haze and patchy smoke through
the night. A chance of rain showers overnight.
* Chance of Lightning...0 percent.
* Min Temperature.....61-71.
* 24 hr Trend........5 degrees warmer.
* Max Humidity........40-55 percent.
* 24 hr Trend........5 percent wetter.
* Humidity Recovery...Poor.
* 20-foot winds.......
* Valleys/Lwr Slopes...Northwest 3 to 6 mph.
* Ridges/Upr Slopes....South 3 to 6 mph in the evening shifting to
the southwest overnight.
* 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 (395) in the evening decreasing to
low (69) overnight.
.SATURDAY...
* Sky/Weather.........Partly sunny. Haze and patchy smoke in the
morning. A chance of thunderstorms in the morning. A chance of
rain showers through the day. A chance of thunderstorms in the
afternoon.
* Chance of Lightning...50 percent.
* Max Temperature.....81-91 valleys and 71-81 mountains.
* 24 hr Trend........4 degrees cooler.
* Min Humidity........35-50 percent.
* 24 hr Trend........4 percent wetter valleys, and 27 percent
wetter mountains.
* 20-foot winds.......
* Valleys/Lwr Slopes...Northwest 3 to 7 mph in the morning shifting
to the southwest 4 to 11 mph with gusts to around 25 mph in
the afternoon.
* Ridges/Upr Slopes....Southeast 3 to 10 mph in the morning
shifting to the southwest 6 to 12 mph with gusts to around 25
mph in the afternoon.
* Mixing Height.......7000 ft AGL.
* Transport Winds.....South 10 to 20 mph.
* CWR (> 0.10 IN).....10 percent.
* Ventilation Index...High (647) in the morning increasing to very
high (1449) in the afternoon.
.SATURDAY NIGHT...
* Sky/Weather.........Mostly cloudy. A chance of thunderstorms
early in the evening. A chance of rain showers through the night.
* Chance of Lightning...20 percent.
* Min Temperature.....53-63 valleys and 47-57 mountains.
* Max Humidity........65-80 percent.
* Humidity Recovery...Good.
* 20-foot winds.......
* Valleys/Lwr Slopes...West 4 to 15 mph with gusts to around 30
mph.
* Ridges/Upr Slopes....West 4 to 15 mph.
* Mixing Height.......4000 ft AGL falling to near surface.
* Transport Winds.....West 10 to 20 mph.
* CWR (> 0.10 IN).....10 percent.
* Ventilation Index...Very high (891) in the evening decreasing to
low (138) overnight.
.SUNDAY...
* Sky/Weather.........Partly sunny. A chance of rain showers in the
morning. A chance of rain showers early in the afternoon.
* Chance of Lightning...0 percent.
* Max Temperature.....72-82 valleys and 60-70 mountains.
* Min Humidity........30-45 percent valleys and 45-60 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 with gusts to around 25
mph.
* Mixing Height.......6000 ft AGL.
* Transport Winds.....West 10 to 15 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (464) in the morning increasing to
high (626) in the afternoon.
.Forecast Days 3 Through 7......
.MONDAY...Mostly clear. Lows 52 to 62 valleys...45 to
55 mountains. Highs 80 to 90 valleys...68 to 78 mountains. West
wind up to 5 mph.
.TUESDAY...Mostly clear. Lows 58 to 67 valleys...51 to
61 mountains. Highs 83 to 93 valleys...71 to 81 mountains. West
wind up to 10 mph.
.WEDNESDAY...Partly cloudy. Lows 56 to 66 valleys...49 to
59 mountains. Highs 76 to 86 valleys...64 to 74 mountains. West
wind 5 to 10 mph.
.THURSDAY...Partly cloudy. Lows 51 to 61 valleys...43 to
53 mountains. Highs 73 to 83 valleys...61 to 71 mountains.
.FRIDAY...Partly cloudy. A chance of rain showers. Lows 50 to
60 valleys...42 to 52 mountains. Highs 73 to 83 valleys...62 to
72 mountains.
.8 to 14 Day Outlook for Aug 29 - Sep 04, 2026
Below normal temperatures and above normal precipitation.
$$
WAZ697-221315-
East Portion of North Cascades National Park/Lake Chelan National
Recreation Area (Zone 697)-
Including the city of Stehekin
323 PM PDT Fri Aug 21 2026
...RED FLAG WARNING IN EFFECT FROM 11 AM SATURDAY TO 8 AM PDT
SUNDAY...
.Tonight...
* Sky/Weather.........Mostly cloudy. Patchy smoke in the evening.
Haze late in the evening. A chance of rain showers overnight.
* Chance of Lightning...0 percent.
* Min Temperature.....67-76 valleys and 59-69 mountains.
* 24 hr Trend........5 degrees warmer.
* Max Humidity........45-60 percent.
* 24 hr Trend........10 percent wetter.
* Humidity Recovery...Poor.
* 20-foot winds.......
* Valleys/Lwr Slopes...Southeast 3 to 5 mph in the evening shifting
to the east 3 to 4 mph overnight.
* Ridges/Upr Slopes....Southeast 3 to 6 mph.
* Mixing Height.......2500 ft AGL falling to near surface.
* Transport Winds.....Southeast 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (252) in the evening decreasing to
low (42) overnight.
.SATURDAY...
* Sky/Weather.........Partly sunny. Haze and patchy smoke early in
the morning. A chance of rain showers in the morning. A chance of
thunderstorms late in the morning, then rain showers likely and a
chance of thunderstorms in the afternoon.
* Chance of Lightning...50 percent.
* Max Temperature.....81-91 valleys and 69-79 mountains.
* 24 hr Trend........11 degrees cooler.
* Min Humidity........40-55 percent.
* 24 hr Trend........22 percent wetter.
* 20-foot winds.......
* Valleys/Lwr Slopes...West 3 to 9 mph.
* Ridges/Upr Slopes....West 9 to 12 mph.
* Mixing Height.......6000 ft AGL.
* Transport Winds.....South 5 to 15 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (417) in the morning increasing to
very high (888) in the afternoon.
.SATURDAY NIGHT...
* Sky/Weather.........Mostly cloudy. A chance of thunderstorms
early in the evening. A chance of rain showers through the night.
* Chance of Lightning...20 percent.
* Min Temperature.....57-65 valleys and 47-57 mountains.
* Max Humidity........55-70 percent valleys and 65-80 percent
mountains.
* Humidity Recovery...Good.
* 20-foot winds.......
* Valleys/Lwr Slopes...West 5 to 15 mph with gusts to around 25
mph.
* Ridges/Upr Slopes....West 5 to 15 mph. Gusts up to 30 mph
overnight.
* Mixing Height.......2000 ft AGL falling to near surface.
* Transport Winds.....West 10 to 15 mph.
* CWR (> 0.10 IN).....20 percent.
* Ventilation Index...Moderate (297).
.SUNDAY...
* Sky/Weather.........Mostly sunny. A chance of rain showers in the
morning.
* Chance of Lightning...0 percent.
* Max Temperature.....70-80 valleys and 58-68 mountains.
* Min Humidity........50-65 percent.
* 20-foot winds.......
* Valleys/Lwr Slopes...West 6 to 14 mph with gusts to around 20
mph.
* Ridges/Upr Slopes....West 6 to 14 mph. Gusts up to 30 mph in the
morning.
* Mixing Height.......4000 ft AGL.
* Transport Winds.....West 10 to 15 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (412).
.Forecast Days 3 Through 7......
.MONDAY...Warmer. Mostly clear. Lows 52 to 62 valleys...43 to
53 mountains. Highs 82 to 92 valleys...69 to 79 mountains. West
wind up to 5 mph.
.TUESDAY...Mostly clear. Lows 59 to 67 valleys...51 to
61 mountains. Highs 82 to 92 valleys...70 to 80 mountains. West
wind up to 10 mph.
.WEDNESDAY...Partly cloudy. Lows 57 to 66 valleys...49 to
59 mountains. Highs 74 to 84 valleys...62 to 72 mountains. West
wind 5 to 10 mph.
.THURSDAY...Partly cloudy. Lows 51 to 61 valleys...42 to
52 mountains. Highs 72 to 82 valleys...60 to 70 mountains.
.FRIDAY...Partly cloudy. A chance of rain showers. Lows 50 to
60 valleys...41 to 51 mountains. Highs 72 to 82 valleys...60 to
70 mountains.
.8 to 14 Day Outlook for Aug 29 - Sep 04, 2026
Below normal temperatures and above normal precipitation.
$$
WAZ704-221315-
Methow Valley (Zone 704)-
Including the cities of Mazama, Winthrop, and Twisp
323 PM PDT Fri Aug 21 2026
...RED FLAG WARNING IN EFFECT FROM 11 AM SATURDAY TO 8 AM PDT
SUNDAY...
.Tonight...
* Sky/Weather.........Cloudy. Haze and patchy smoke through the
night. A chance of showers late in the night.
* Chance of Lightning...0 percent.
* Min Temperature.....67-77.
* 24 hr Trend........6 degrees warmer.
* Max Humidity........35-50 percent.
* 24 hr Trend........5 percent wetter.
* Humidity Recovery...Poor.
* 20-foot winds.......Northwest up to 5 mph.
* Mixing Height.......5000 ft AGL falling to near surface.
* Transport Winds.....Northwest 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (398) in the evening decreasing to
low (47) overnight.
.SATURDAY...
* Sky/Weather.........Partly sunny. Haze and patchy smoke in the
morning. A chance of showers in the morning. A chance of
thunderstorms in the late morning and afternoon. A chance of
showers in the afternoon.
* Chance of Lightning...20 percent.
* Max Temperature.....87-96.
* 24 hr Trend........4 degrees cooler.
* Min Humidity........23-28 percent.
* 24 hr Trend........7 percent wetter.
* 20-foot winds.......Northwest 3 to 7 mph in the morning shifting
to the south 6 to 13 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 (565) in the morning increasing to very
high (1623) in the afternoon.
.SATURDAY NIGHT...
* Sky/Weather.........Partly cloudy. A chance of thunderstorms
early in the evening. A chance of rain showers in the evening.
* Chance of Lightning...20 percent.
* Min Temperature.....54-63.
* Max Humidity........61-80 percent.
* Humidity Recovery...Good.
* 20-foot winds.......West 4 to 15 mph.
* Mixing Height.......6500 ft AGL falling to near surface.
* Transport Winds.....Northwest 10 to 15 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Very high (943) in the evening decreasing to
low (69) overnight.
.SUNDAY...
* Sky/Weather.........Mostly sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....77-86.
* Min Humidity........26-35 percent.
* 20-foot winds.......West 3 to 8 mph.
* Mixing Height.......8000 ft AGL.
* Transport Winds.....Northwest 5 to 15 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...High (534) in the morning increasing to high
(725) in the afternoon.
.Forecast Days 3 Through 7......
.MONDAY THROUGH TUESDAY...Mostly clear. Lows 54 to 64. Highs
83 to 93. Southwest wind up to 5 mph.
.WEDNESDAY...Partly cloudy. Lows 56 to 65. Highs 80 to 90. West
wind up to 10 mph.
.THURSDAY THROUGH FRIDAY...Partly cloudy. Lows 49 to 59. Highs
77 to 86.
.8 to 14 Day Outlook for Aug 29 - Sep 04, 2026
Below normal temperatures and above normal precipitation.
$$
WAZ703-221315-
Okanogan Valley (Zone 703)-
Including the cities of Conconully and Omak
323 PM PDT Fri Aug 21 2026
...RED FLAG WARNING IN EFFECT FROM 11 AM SATURDAY TO 8 AM PDT
SUNDAY...
.Tonight...
* Sky/Weather.........Mostly cloudy. Haze and patchy smoke through
the night.
* Chance of Lightning...0 percent.
* Min Temperature.....71-76.
* 24 hr Trend........9 degrees warmer.
* Max Humidity........35-40 percent.
* 24 hr Trend........Unchanged.
* Humidity Recovery...Poor.
* 20-foot winds.......West 3 to 5 mph in the evening shifting to
the north 3 to 8 mph overnight.
* Mixing Height.......5000 ft AGL falling to near surface.
* Transport Winds.....Northwest 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (290) in the evening decreasing to
low (49) overnight.
.SATURDAY...
* Sky/Weather.........Partly sunny. Haze and patchy smoke in the
morning. A chance of showers in the morning, then a chance of
showers and thunderstorms in the afternoon.
* Chance of Lightning...20 percent.
* Max Temperature.....89-97.
* 24 hr Trend........2 degrees cooler.
* Min Humidity........21-27 percent.
* 24 hr Trend........7 percent wetter.
* 20-foot winds.......North 3 to 10 mph in the morning shifting to
the south 6 to 14 mph with gusts to around 30 mph in the
afternoon.
* Mixing Height.......10000 ft AGL.
* Transport Winds.....Southeast 10 to 20 mph.
* CWR (> 0.10 IN).....10 percent.
* Ventilation Index...High (598) in the morning increasing to very
high (1889) in the afternoon.
.SATURDAY NIGHT...
* Sky/Weather.........Partly cloudy then becoming mostly cloudy. A
chance of thunderstorms early in the evening. A chance of rain
showers through the night.
* Chance of Lightning...20 percent.
* Min Temperature.....58-64.
* Max Humidity........55-70 percent.
* Humidity Recovery...Fair.
* 20-foot winds.......Southwest 8 to 19 mph with gusts to around 30
mph in the evening shifting to the west 3 to 8 mph overnight.
* Mixing Height.......7000 ft AGL falling to near surface.
* Transport Winds.....West 10 to 20 mph.
* CWR (> 0.10 IN).....10 percent.
* Ventilation Index...Very high (1665) in the evening decreasing to
low (49) overnight.
.SUNDAY...
* Sky/Weather.........Mostly sunny. A chance of rain showers
through the day. A chance of thunderstorms early in the
afternoon.
* Chance of Lightning...10 percent.
* Max Temperature.....78-87.
* Min Humidity........26-35 percent.
* 20-foot winds.......Southwest 3 to 8 mph. Gusts up to 20 mph in
the afternoon.
* Mixing Height.......8500 ft AGL.
* Transport Winds.....West 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (409) in the morning increasing to
high (771) in the afternoon.
.Forecast Days 3 Through 7......
.MONDAY...Mostly clear. Lows 56 to 61. Highs 82 to 91. North wind
up to 10 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy. Lows 59 to 65. Highs
84 to 94. West wind 4 to 15 mph.
.THURSDAY THROUGH FRIDAY...Partly cloudy. Lows 53 to 59. Highs
78 to 87.
.8 to 14 Day Outlook for Aug 29 - Sep 04, 2026
Below normal temperatures and above normal precipitation.
$$
WAZ702-221315-
Colville Reservation (Zone 702)-
Including the cities of Nespelem and Keller
323 PM PDT Fri Aug 21 2026
...RED FLAG WARNING IN EFFECT FROM NOON TO 10 PM PDT SATURDAY...
.Tonight...
* Sky/Weather.........Mostly cloudy. Haze and patchy smoke
overnight.
* Chance of Lightning...0 percent.
* Min Temperature.....69-75.
* 24 hr Trend........8 degrees warmer.
* Max Humidity........35-45 percent.
* 24 hr Trend........5 percent wetter.
* Humidity Recovery...Poor.
* 20-foot winds.......
* Valleys/Lwr Slopes...North 3 to 5 mph.
* Ridges/Upr Slopes....North 6 to 9 mph.
* Mixing Height.......5500 ft AGL falling to near surface.
* Transport Winds.....North 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (284) in the evening decreasing to
low (60) overnight.
.SATURDAY...
* Sky/Weather.........Partly sunny. Haze and patchy smoke in the
morning. A chance of rain showers late in the afternoon.
* Chance of Lightning...0 percent.
* Max Temperature.....89-99 valleys and 81-91 mountains.
* 24 hr Trend........4 degrees cooler.
* Min Humidity........21-28 percent.
* 24 hr Trend........9 percent wetter.
* 20-foot winds.......
* Valleys/Lwr Slopes...Northeast 3 to 9 mph in the morning shifting
to the south 5 to 13 mph with gusts to around 30 mph in the
afternoon.
* Ridges/Upr Slopes....Northeast 4 to 9 mph in the morning shifting
to the south 6 to 10 mph with gusts to around 25 mph in the
afternoon.
* Mixing Height.......9000 ft AGL.
* Transport Winds.....Southeast 10 to 20 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...High (648) in the morning increasing to very
high (1684) in the afternoon.
.SATURDAY NIGHT...
* Sky/Weather.........Partly cloudy then becoming mostly cloudy. A
chance of rain showers in the evening.
* Chance of Lightning...0 percent.
* Min Temperature.....55-61.
* Max Humidity........65-80 percent.
* Humidity Recovery...Good.
* 20-foot winds.......
* Valleys/Lwr Slopes...Southwest 7 to 17 mph with gusts to around
30 mph in the evening shifting to the south 3 to 6 mph
overnight.
* Ridges/Upr Slopes....South 3 to 14 mph. Gusts up to 25 mph in the
evening.
* Mixing Height.......8500 ft AGL falling to near surface.
* Transport Winds.....Southwest 10 to 20 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Very high (1523) in the evening decreasing to
low (90) overnight.
.SUNDAY...
* Sky/Weather.........Mostly sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....76-86 valleys and 69-78 mountains.
* Min Humidity........26-30 percent valleys and 30-40 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 9 mph. Gusts up to 20 mph in
the afternoon.
* Mixing Height.......8500 ft AGL.
* Transport Winds.....Southwest 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (469) in the morning increasing to
very high (824) in the afternoon.
.Forecast Days 3 Through 7......
.MONDAY...Mostly clear. Lows 54 to 60. Highs 81 to 91 valleys...
74 to 84 mountains. North wind up to 5 mph.
.TUESDAY...Mostly clear. Lows 57 to 63. Highs 85 to 95 valleys...
78 to 88 mountains. Southeast wind up to 5 mph.
.WEDNESDAY...Partly cloudy. Lows 59 to 64. Highs 80 to
90 valleys...73 to 83 mountains. Southwest wind up to 10 mph.
.THURSDAY...Partly cloudy. Lows 53 to 59. Highs 76 to
86 valleys...69 to 79 mountains.
.FRIDAY...Mostly clear. Lows 51 to 57. Highs 76 to 86 valleys...
69 to 79 mountains.
.8 to 14 Day Outlook for Aug 29 - Sep 04, 2026
Below normal temperatures and above normal precipitation.
$$
WAZ699-221315-
Okanogan Highlands and Kettle Mountains (Zone 699)-
Including the cities of Republic and Curlew
323 PM PDT Fri Aug 21 2026
...RED FLAG WARNING IN EFFECT FROM 11 AM SATURDAY TO 8 AM PDT
SUNDAY...
.Tonight...
* Sky/Weather.........Mostly cloudy. Haze and patchy smoke through
the night.
* Chance of Lightning...0 percent.
* Min Temperature.....64-73.
* 24 hr Trend........8 degrees warmer.
* Max Humidity........40-55 percent valleys and 35-45 percent
mountains.
* 24 hr Trend........5 percent wetter valleys, and unchanged
mountains.
* Humidity Recovery...Poor.
* 20-foot winds.......
* Valleys/Lwr Slopes...North up to 4 mph in the evening becoming up
to 5 mph overnight.
* Ridges/Upr Slopes....Southwest 3 to 4 mph in the evening shifting
to the northwest 3 to 6 mph overnight.
* Mixing Height.......5500 ft AGL falling to near surface.
* Transport Winds.....Northwest 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (324) in the evening decreasing to
low (61) overnight.
.SATURDAY...
* Sky/Weather.........Partly sunny. Haze and patchy smoke in the
morning. A chance of rain showers in the late morning and
afternoon. A chance of thunderstorms in the afternoon.
* Chance of Lightning...20 percent.
* Max Temperature.....89-99 valleys and 80-90 mountains.
* 24 hr Trend........3 degrees cooler.
* Min Humidity........21-30 percent.
* 24 hr Trend........10 percent wetter.
* 20-foot winds.......
* Valleys/Lwr Slopes...Northeast 3 to 7 mph in the morning shifting
to the south 4 to 10 mph in the afternoon.
* Ridges/Upr Slopes....Northeast 3 to 6 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 10 to 20 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...High (624) in the morning increasing to very
high (1470) in the afternoon.
.SATURDAY NIGHT...
* Sky/Weather.........Mostly cloudy. A chance of thunderstorms
early in the evening. A chance of rain showers through the night.
* Chance of Lightning...20 percent.
* Min Temperature.....53-61.
* Max Humidity........71-90 percent valleys and 65-80 percent
mountains.
* Humidity Recovery...Good.
* 20-foot winds.......
* Valleys/Lwr Slopes...South up to 11 mph.
* Ridges/Upr Slopes....South up to 11 mph.
* Mixing Height.......7000 ft AGL falling to near surface.
* Transport Winds.....Southwest 5 to 15 mph.
* CWR (> 0.10 IN).....10 percent.
* Ventilation Index...Very high (1194) in the evening decreasing to
low (75) overnight.
.SUNDAY...
* Sky/Weather.........Mostly sunny. A chance of rain showers
through the day. A chance of thunderstorms in the late morning
and afternoon.
* Chance of Lightning...20 percent.
* Max Temperature.....75-85 valleys and 68-77 mountains.
* Min Humidity........30-45 percent.
* 20-foot winds.......
* Valleys/Lwr Slopes...Southwest up to 7 mph.
* Ridges/Upr Slopes....Southwest up to 7 mph.
* Mixing Height.......7500 ft AGL.
* Transport Winds.....Southwest 5 to 10 mph.
* CWR (> 0.10 IN).....10 percent.
* Ventilation Index...High (537) in the morning increasing to high
(773) in the afternoon.
.Forecast Days 3 Through 7......
.MONDAY...Mostly clear. Lows 49 to 58. Highs 81 to 91 valleys...
73 to 83 mountains. North wind up to 5 mph.
.TUESDAY...Partly cloudy. Lows 53 to 61. Highs 86 to 96 valleys...
77 to 87 mountains. Southeast wind up to 5 mph.
.WEDNESDAY...Partly cloudy. Lows 54 to 62. Highs 81 to
91 valleys...73 to 82 mountains. Southwest wind up to 10 mph.
.THURSDAY THROUGH FRIDAY...Partly cloudy. Lows 47 to 57. Highs
76 to 86 valleys...69 to 78 mountains.
.8 to 14 Day Outlook for Aug 29 - Sep 04, 2026
Below normal temperatures and above normal precipitation.
$$
WAZ700-221315-
Selkirk Mountains of Northeast Washington (Zone 700)-
Including the cities of Metaline Falls and Ione
323 PM PDT Fri Aug 21 2026
...RED FLAG WARNING IN EFFECT FROM 4 PM SATURDAY TO 11 AM PDT
SUNDAY...
.Tonight...
* Sky/Weather.........Mostly cloudy. Haze and patchy smoke through
the night.
* Chance of Lightning...0 percent.
* Min Temperature.....62-68.
* 24 hr Trend........9 degrees warmer.
* Max Humidity........45-60 percent.
* 24 hr Trend........5 percent wetter.
* Humidity Recovery...Poor.
* 20-foot winds.......
* Valleys/Lwr Slopes...North up to 7 mph.
* Ridges/Upr Slopes....North up to 8 mph.
* Mixing Height.......3500 ft AGL falling to near surface.
* Transport Winds.....Northeast 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Low (136).
.SATURDAY...
* Sky/Weather.........Partly sunny. A chance of rain showers until
late afternoon. A chance of thunderstorms in the afternoon. A
chance of rain showers late in the afternoon.
* Chance of Lightning...20 percent.
* Max Temperature.....88-98 valleys and 80-90 mountains.
* 24 hr Trend........2 degrees cooler.
* Min Humidity........25-35 percent.
* 24 hr Trend........10 percent wetter.
* 20-foot winds.......
* Valleys/Lwr Slopes...Northeast 3 to 6 mph in the morning shifting
to the south 3 to 7 mph in the afternoon.
* Ridges/Upr Slopes....Northeast 3 to 8 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.....East 5 to 15 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (490) in the morning increasing to
very high (906) in the afternoon.
.SATURDAY NIGHT...
* Sky/Weather.........Mostly cloudy. A chance of thunderstorms in
the evening. A chance of rain showers through the night.
* Chance of Lightning...20 percent.
* Min Temperature.....52-60.
* Max Humidity........71-90 percent valleys and 65-80 percent
mountains.
* Humidity Recovery...Good.
* 20-foot winds.......
* Valleys/Lwr Slopes...South 3 to 10 mph. Gusts up to 20 mph in the
evening.
* Ridges/Upr Slopes....South 3 to 11 mph.
* Mixing Height.......6000 ft AGL falling to near surface.
* Transport Winds.....South 5 to 15 mph.
* CWR (> 0.10 IN).....10 percent.
* Ventilation Index...High (673) in the evening decreasing to low
(78) overnight.
.SUNDAY...
* Sky/Weather.........Mostly sunny. A chance of showers and
thunderstorms in the afternoon.
* Chance of Lightning...10 percent.
* Max Temperature.....74-82 valleys and 66-76 mountains.
* Min Humidity........30-40 percent valleys and 40-55 percent
mountains.
* 20-foot winds.......
* Valleys/Lwr Slopes...South 4 to 10 mph with gusts to around 20
mph.
* Ridges/Upr Slopes....South 4 to 10 mph with gusts to around 25
mph.
* Mixing Height.......8000 ft AGL.
* Transport Winds.....Southwest 5 to 15 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...High (665) in the morning increasing to very
high (1006) in the afternoon.
.Forecast Days 3 Through 7......
.MONDAY...Mostly clear. Lows 48 to 56. Highs 80 to 88 valleys...
71 to 81 mountains. Northwest wind up to 5 mph.
.TUESDAY...Mostly clear. Lows 51 to 58. Highs 84 to 94 valleys...
76 to 86 mountains. East wind up to 5 mph.
.WEDNESDAY...Partly cloudy. Lows 53 to 61. Highs 80 to
89 valleys...72 to 82 mountains. South wind up to 10 mph.
.THURSDAY THROUGH FRIDAY...Partly cloudy. Lows 45 to 55. Highs
75 to 84 valleys...67 to 77 mountains.
.8 to 14 Day Outlook for Aug 29 - Sep 04, 2026
Below normal temperatures and above normal precipitation.
$$
WAZ701-221315-
Foothills of Northeast Washington (Zone 701)-
Including the cities of Colville, Deer Park, and Newport
323 PM PDT Fri Aug 21 2026
...RED FLAG WARNING IN EFFECT FROM NOON TO 10 PM PDT SATURDAY...
.Tonight...
* Sky/Weather.........Mostly cloudy. Patchy smoke in the late
evening and overnight. Haze overnight.
* Chance of Lightning...0 percent.
* Min Temperature.....63-73.
* 24 hr Trend........9 degrees warmer.
* Max Humidity........40-55 percent.
* 24 hr Trend........5 percent drier valleys, and 15 percent wetter
mountains.
* Humidity Recovery...Poor.
* 20-foot winds.......
* Valleys/Lwr Slopes...North up to 6 mph.
* Ridges/Upr Slopes....North up to 10 mph.
* Mixing Height.......3500 ft AGL falling to near surface.
* Transport Winds.....North 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (264) in the evening decreasing to
low (43) overnight.
.SATURDAY...
* Sky/Weather.........Partly sunny. Haze and patchy smoke early in
the morning. A chance of showers and thunderstorms late in the
afternoon.
* Chance of Lightning...20 percent.
* Max Temperature.....91-98 valleys and 83-91 mountains.
* 24 hr Trend........1 degree cooler.
* Min Humidity........20-26 percent.
* 24 hr Trend........8 percent wetter.
* 20-foot winds.......
* Valleys/Lwr Slopes...Northeast 3 to 6 mph in the morning shifting
to the south 4 to 9 mph with gusts to around 20 mph in the
afternoon.
* Ridges/Upr Slopes....Northeast 4 to 10 mph in the morning
shifting to the southeast 5 to 10 mph with gusts to around 25
mph in the afternoon.
* Mixing Height.......8500 ft AGL.
* Transport Winds.....East 5 to 15 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...High (548) in the morning increasing to very
high (1285) in the afternoon.
.SATURDAY NIGHT...
* Sky/Weather.........Mostly cloudy. A chance of thunderstorms
early in the evening. A chance of rain showers through the night.
* Chance of Lightning...20 percent.
* Min Temperature.....53-61.
* Max Humidity........70-80 percent valleys and 60-70 percent
mountains.
* Humidity Recovery...Good.
* 20-foot winds.......
* Valleys/Lwr Slopes...South 3 to 12 mph. Gusts up to 25 mph in the
evening.
* Ridges/Upr Slopes....South 3 to 13 mph with gusts to around 25
mph.
* Mixing Height.......7500 ft AGL falling to near surface.
* Transport Winds.....Southwest 5 to 15 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Very high (1152) in the evening decreasing to
low (96) overnight.
.SUNDAY...
* Sky/Weather.........Mostly sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....77-84 valleys and 69-77 mountains.
* Min Humidity........26-35 percent.
* 20-foot winds.......
* Valleys/Lwr Slopes...South 5 to 9 mph with gusts to around 25
mph.
* Ridges/Upr Slopes....Southwest 5 to 11 mph with gusts to around
25 mph.
* Mixing Height.......8000 ft AGL.
* Transport Winds.....Southwest 10 to 15 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...High (655) in the morning increasing to very
high (1054) in the afternoon.
.Forecast Days 3 Through 7......
.MONDAY...Mostly clear. Lows 49 to 59. Highs 83 to 89 valleys...
75 to 83 mountains. Northeast wind up to 5 mph.
.TUESDAY...Mostly clear. Lows 51 to 61. Highs 87 to 95 valleys...
80 to 88 mountains. Northeast wind up to 5 mph.
.WEDNESDAY...Partly cloudy. Lows 54 to 64. Highs 82 to
89 valleys...75 to 82 mountains. South wind up to 10 mph.
.THURSDAY...Partly cloudy. Lows 48 to 58. Highs 78 to
84 valleys...70 to 77 mountains.
.FRIDAY...Mostly clear. Lows 46 to 56. Highs 78 to 84 valleys...
70 to 77 mountains.
.8 to 14 Day Outlook for Aug 29 - Sep 04, 2026
Below normal temperatures and above normal precipitation.
$$
IDZ101-221315-
Northern and Central Idaho Panhandle (Zone 101)-
Including the cities of St. Maries, Rathdrum Prairie,
Silver Valley, Bonners Ferry, and Priest Lake
323 PM PDT Fri Aug 21 2026
...RED FLAG WARNING IN EFFECT FROM 4 PM SATURDAY TO 11 AM PDT
SUNDAY...
.Tonight...
* Sky/Weather.........Mostly cloudy. Haze and patchy smoke through
the night. A chance of rain showers late in the night.
* Chance of Lightning...0 percent.
* Min Temperature.....62-71.
* 24 hr Trend........5 degrees warmer.
* Max Humidity........50-65 percent valleys and 45-55 percent
mountains.
* 24 hr Trend........Unchanged valleys, and 10 percent wetter
mountains.
* Humidity Recovery...Poor.
* 20-foot winds.......
* Valleys/Lwr Slopes...Northeast 3 to 7 mph.
* Ridges/Upr Slopes....Northeast 3 to 8 mph.
* Mixing Height.......3500 ft AGL falling to near surface.
* Transport Winds.....Northeast 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (262) in the evening decreasing to
low (54) overnight.
.SATURDAY...
* Sky/Weather.........Partly sunny. A chance of rain showers in the
morning. A chance of showers and thunderstorms late in the
afternoon.
* Chance of Lightning...20 percent.
* Max Temperature.....90-97 valleys and 80-90 mountains.
* 24 hr Trend........4 degrees cooler.
* Min Humidity........25-35 percent.
* 24 hr Trend........9 percent wetter.
* 20-foot winds.......
* Valleys/Lwr Slopes...East 3 to 6 mph in the morning shifting to
the southwest 3 to 7 mph in the afternoon.
* Ridges/Upr Slopes....Southeast 3 to 7 mph in the morning shifting
to the southwest 4 to 8 mph in the afternoon.
* Mixing Height.......8000 ft AGL.
* Transport Winds.....South 5 to 15 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...High (547) in the morning increasing to very
high (1093) in the afternoon.
.SATURDAY NIGHT...
* Sky/Weather.........Mostly cloudy. A chance of thunderstorms in
the evening. A chance of rain showers through the night.
* Chance of Lightning...20 percent.
* Min Temperature.....54-62.
* Max Humidity........70-80 percent valleys and 60-75 percent
mountains.
* Humidity Recovery...Good.
* 20-foot winds.......
* Valleys/Lwr Slopes...Southwest 3 to 9 mph.
* Ridges/Upr Slopes....Southwest 3 to 10 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...High (524) in the evening decreasing to low
(70) overnight.
.SUNDAY...
* Sky/Weather.........Mostly sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....75-82 valleys and 66-76 mountains.
* Min Humidity........27-35 percent valleys and 30-45 percent
mountains.
* 20-foot winds.......
* Valleys/Lwr Slopes...Southwest 3 to 11 mph with gusts to around
25 mph.
* Ridges/Upr Slopes....Southwest 3 to 12 mph with gusts to around
25 mph.
* Mixing Height.......7500 ft AGL.
* Transport Winds.....Southwest 10 to 20 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...High (709) in the morning increasing to very
high (1320) in the afternoon.
.Forecast Days 3 Through 7......
.MONDAY...Mostly clear. Lows 49 to 58. Highs 81 to 88 valleys...
72 to 82 mountains. Southwest wind up to 5 mph.
.TUESDAY...Mostly clear. Lows 52 to 61. Highs 87 to 94 valleys...
77 to 87 mountains. Northeast wind up to 5 mph.
.WEDNESDAY...Partly cloudy. Lows 55 to 63. Highs 82 to
88 valleys...72 to 82 mountains. South wind up to 10 mph.
.THURSDAY...Partly cloudy. Lows 50 to 59. Highs 77 to
83 valleys...68 to 78 mountains.
.FRIDAY...Mostly clear. Lows 47 to 56. Highs 77 to 83 valleys...
68 to 78 mountains.
.8 to 14 Day Outlook for Aug 29 - Sep 04, 2026
Below normal temperatures and above normal precipitation.
$$
WAZ707-221315-
Western Columbia Basin (Zone 707)-
Including the cities of Moses Lake and Ephrata
323 PM PDT Fri Aug 21 2026
...RED FLAG WARNING IN EFFECT FROM NOON TO 10 PM PDT SATURDAY...
.Tonight...
* Sky/Weather.........Mostly cloudy. Haze and patchy smoke.
* Chance of Lightning...0 percent.
* Min Temperature.....69-77.
* 24 hr Trend........11 degrees warmer.
* Max Humidity........35-50 percent.
* 24 hr Trend........10 percent wetter.
* Humidity Recovery...Poor.
* 20-foot winds.......North 3 to 9 mph.
* Mixing Height.......4000 ft AGL falling to near surface.
* Transport Winds.....North 5 to 15 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (310) in the evening decreasing to
low (62) overnight.
.SATURDAY...
* Sky/Weather.........Mostly sunny. Patchy smoke early in the
morning. Haze in the morning.
* Chance of Lightning...0 percent.
* Max Temperature.....93-98.
* 24 hr Trend........5 degrees cooler.
* Min Humidity........20-30 percent.
* 24 hr Trend........8 percent wetter.
* 20-foot winds.......East 3 to 11 mph in the morning shifting to
the southwest 6 to 17 mph with gusts to around 35 mph in the
afternoon.
* Mixing Height.......9000 ft AGL.
* Transport Winds.....South 10 to 20 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (435) in the morning increasing to
very high (1747) in the afternoon.
.SATURDAY NIGHT...
* Sky/Weather.........Partly cloudy.
* Chance of Lightning...0 percent.
* Min Temperature.....56-63.
* Max Humidity........61-80 percent.
* Humidity Recovery...Good.
* 20-foot winds.......West 8 to 19 mph. Gusts up to 35 mph in the
evening.
* Mixing Height.......7500 ft AGL falling to near surface.
* Transport Winds.....West 15 to 25 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Very high (1509) in the evening decreasing to
low (65) overnight.
.SUNDAY...
* Sky/Weather.........Sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....83-88.
* Min Humidity........26-35 percent.
* 20-foot winds.......Southwest 5 to 11 mph with gusts to around 25
mph.
* Mixing Height.......7500 ft AGL.
* Transport Winds.....West 10 to 15 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...High (563) in the morning increasing to very
high (897) in the afternoon.
.Forecast Days 3 Through 7......
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows 55 to 65. Highs
86 to 96. West wind 4 to 15 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows 51 to 60. Highs
82 to 88.
.8 to 14 Day Outlook for Aug 29 - Sep 04, 2026
Below normal temperatures and above normal precipitation.
$$
WAZ708-221315-
Eastern Columbia Basin - Palouse - Spokane Area (Zone 708)-
Including the cities of Spokane, Pullman, Ritzville, Wilbur,
and Cheney
323 PM PDT Fri Aug 21 2026
...RED FLAG WARNING IN EFFECT FROM NOON TO 10 PM PDT SATURDAY...
.Tonight...
* Sky/Weather.........Mostly cloudy. Haze and patchy smoke early in
the evening.
* Chance of Lightning...0 percent.
* Min Temperature.....65-73.
* 24 hr Trend........10 degrees warmer.
* Max Humidity........35-45 percent.
* 24 hr Trend........5 percent drier.
* Humidity Recovery...Poor.
* 20-foot winds.......North 3 to 9 mph.
* Mixing Height.......5000 ft AGL falling to near surface.
* Transport Winds.....North 5 to 15 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (498) in the evening decreasing to
low (60) overnight.
.SATURDAY...
* Sky/Weather.........Mostly sunny. Haze and patchy smoke early in
the morning. A chance of showers late in the afternoon.
* Chance of Lightning...0 percent.
* Max Temperature.....93-98.
* 24 hr Trend........4 degrees cooler.
* Min Humidity........20-24 percent.
* 24 hr Trend........8 percent wetter.
* 20-foot winds.......East 3 to 10 mph in the morning shifting to
the southwest 6 to 15 mph with gusts to around 30 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 (571) in the morning increasing to very
high (1513) in the afternoon.
.SATURDAY NIGHT...
* Sky/Weather.........Partly cloudy. A chance of rain showers until
early morning.
* Chance of Lightning...0 percent.
* Min Temperature.....54-61.
* Max Humidity........55-70 percent.
* Humidity Recovery...Fair.
* 20-foot winds.......Southwest 7 to 18 mph. Gusts up to 35 mph in
the evening decreasing to 25 mph overnight.
* Mixing Height.......7000 ft AGL falling to near surface.
* Transport Winds.....Southwest 10 to 20 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Very high (1386) in the evening decreasing to
low (176) overnight.
.SUNDAY...
* Sky/Weather.........Sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....80-87.
* Min Humidity........25-30 percent.
* 20-foot winds.......Southwest 6 to 12 mph with gusts to around 25
mph.
* Mixing Height.......7000 ft AGL.
* Transport Winds.....Southwest 10 to 20 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...High (657) in the morning increasing to very
high (1009) in the afternoon.
.Forecast Days 3 Through 7......
.MONDAY THROUGH TUESDAY...Mostly clear. Lows 51 to 61. Highs
87 to 97. Northeast wind up to 5 mph.
.WEDNESDAY...Partly cloudy. Lows 57 to 63. Highs 85 to 92.
Southwest wind 5 to 15 mph.
.THURSDAY...Partly cloudy. Lows 51 to 58. Highs 80 to 87.
.FRIDAY...Mostly clear. Lows 48 to 55. Highs 81 to 88.
.8 to 14 Day Outlook for Aug 29 - Sep 04, 2026
Below normal temperatures and above normal precipitation.
$$
WAZ709-221315-
Lower Palouse - Snake River (Zone 709)-
Including the city of Pomeroy
323 PM PDT Fri Aug 21 2026
...RED FLAG WARNING IN EFFECT FROM NOON TO 10 PM PDT SATURDAY...
.Tonight...
* Sky/Weather.........Mostly cloudy. A chance of showers overnight.
Haze and patchy smoke overnight.
* Chance of Lightning...0 percent.
* Min Temperature.....70-75.
* 24 hr Trend........7 degrees warmer.
* Max Humidity........35-45 percent.
* 24 hr Trend........5 percent wetter.
* Humidity Recovery...Poor.
* 20-foot winds.......North 3 to 6 mph in the evening shifting to
the southwest overnight.
* Mixing Height.......4000 ft AGL falling to near surface.
* Transport Winds.....West 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (415) in the evening decreasing to
low (55) overnight.
.SATURDAY...
* Sky/Weather.........Mostly sunny. A chance of showers in the
afternoon.
* Chance of Lightning...0 percent.
* Max Temperature.....90-100.
* 24 hr Trend........7 degrees cooler.
* Min Humidity........21-28 percent.
* 24 hr Trend........11 percent wetter.
* 20-foot winds.......Southwest 3 to 12 mph with gusts to around 25
mph.
* Mixing Height.......6500 ft AGL.
* Transport Winds.....Southwest 5 to 15 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (425) in the morning increasing to
very high (931) in the afternoon.
.SATURDAY NIGHT...
* Sky/Weather.........Partly cloudy. A chance of thunderstorms
early in the evening. A chance of rain showers in the evening.
* Chance of Lightning...20 percent.
* Min Temperature.....58-63.
* Max Humidity........50-60 percent.
* Humidity Recovery...Poor.
* 20-foot winds.......Southwest 6 to 17 mph with gusts to around 35
mph.
* Mixing Height.......4500 ft AGL falling to near surface.
* Transport Winds.....Southwest 10 to 20 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...High (777) in the evening decreasing to low
(194) overnight.
.SUNDAY...
* Sky/Weather.........Sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....79-89.
* Min Humidity........20-29 percent.
* 20-foot winds.......Southwest 6 to 17 mph with gusts to around 30
mph.
* Mixing Height.......6000 ft AGL.
* Transport Winds.....Southwest 15 to 25 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...High (718) in the morning increasing to very
high (966) in the afternoon.
.Forecast Days 3 Through 7......
.MONDAY...Mostly clear. Lows 54 to 59. Highs 85 to 95. Northeast
wind up to 5 mph.
.TUESDAY...Mostly clear. Lows 59 to 64. Highs 89 to 99. East wind
up to 10 mph.
.WEDNESDAY...Mostly clear. Lows 61 to 66. Highs 84 to 94.
Southwest wind 5 to 15 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows 53 to 60. Highs
80 to 90.
.8 to 14 Day Outlook for Aug 29 - Sep 04, 2026
Below normal temperatures and above normal precipitation.
$$
WAZ705-706-221315-
Foothills of Central Washington Cascades (Zone 705)-
Waterville Plateau (Zone 706)-
Including the cities of Chelan, Wenatchee, Waterville,
and Grand Coulee
323 PM PDT Fri Aug 21 2026
...RED FLAG WARNING IN EFFECT FROM NOON TO 10 PM PDT SATURDAY...
.Tonight...
* Sky/Weather.........Mostly cloudy. Haze and patchy smoke through
the night. A chance of showers overnight.
* Chance of Lightning...0 percent.
* Min Temperature.....71-78.
* 24 hr Trend........8 degrees warmer.
* Max Humidity........35-45 percent.
* 24 hr Trend........Unchanged.
* Humidity Recovery...Poor.
* 20-foot winds.......Northwest 3 to 10 mph.
* Mixing Height.......5500 ft AGL falling to near surface.
* Transport Winds.....Northwest 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (421) in the evening decreasing to
low (57) overnight.
.SATURDAY...
* Sky/Weather.........Mostly sunny. A chance of rain showers until
late afternoon. Haze and patchy smoke in the morning. Patchy
blowing dust late in the afternoon.
* Chance of Lightning...0 percent.
* Max Temperature.....89-97.
* 24 hr Trend........2 degrees cooler.
* Min Humidity........22-28 percent.
* 24 hr Trend........8 percent wetter.
* 20-foot winds.......Northeast 3 to 11 mph in the morning shifting
to the south 5 to 16 mph with gusts to around 35 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 (601) in the morning increasing to very
high (1797) in the afternoon.
.SATURDAY NIGHT...
* Sky/Weather.........Partly cloudy. Patchy blowing dust early in
the evening.
* Chance of Lightning...0 percent.
* Min Temperature.....56-64.
* Max Humidity........55-65 percent.
* Humidity Recovery...Fair.
* 20-foot winds.......West 9 to 20 mph. Gusts up to 35 mph in the
evening decreasing to 25 mph overnight.
* Mixing Height.......8000 ft AGL falling to near surface.
* Transport Winds.....West 15 to 25 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Very high (1589) in the evening decreasing to
low (66) overnight.
.SUNDAY...
* Sky/Weather.........Mostly sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....78-86.
* Min Humidity........27-35 percent.
* 20-foot winds.......West 4 to 11 mph with gusts to around 25 mph.
* Mixing Height.......7500 ft AGL.
* Transport Winds.....West 10 to 15 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...High (510) in the morning increasing to very
high (835) in the afternoon.
.Forecast Days 3 Through 7......
.MONDAY...Mostly clear. Lows 55 to 63. Highs 82 to 91. North wind
up to 10 mph.
.TUESDAY...Mostly clear. Lows 59 to 67. Highs 87 to 96. Northwest
wind up to 5 mph.
.WEDNESDAY...Partly cloudy. Lows 60 to 67. Highs 82 to 90. West
wind 5 to 15 mph.
.THURSDAY...Partly cloudy. Lows 53 to 61. Highs 78 to 86.
.FRIDAY...Mostly clear. Lows 52 to 60. Highs 78 to 87.
.8 to 14 Day Outlook for Aug 29 - Sep 04, 2026
Below normal temperatures and above normal precipitation.
$$