Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Spokane, WA
Issued by NWS Spokane, WA
428
FNUS56 KOTX 171151
FWFOTX
Fire Weather Planning Forecast for Eastern Washington and North Idaho
National Weather Service Spokane WA
451 AM PDT Thu Sep 17 2026
.DISCUSSION...
Central WA:
- Decreasing north-northeast winds down the Okanogan Valley, over
the Waterville Plateau, and across the Columbia Basin
Wednesday night.
- Poor to fair RH recovery overnight.
- Mild and dry with light winds Thursday.
Eastern WA:
- Mild and dry with light winds Thursday.
- 30-60 percent chance of showers with a 10-15 percent chance of
thunderstorms across southeastern WA Thursday evening into
Friday. Outflow gusts up to 40 mph.
- Good to excellent RH recovery overnight.
North ID:
- Mild and dry with light winds Thursday.
- 30-60 percent chance of showers with a 10-15 percent chance of
thunderstorms across the central Panhandle mountains Thursday
evening into Friday. Outflow gusts up to 40 mph.
- Good to excellent RH recovery overnight.
There is a 30-60 percent chance for showers and 10-15 percent
chance for thunderstorms over Southeast WA and the central
Panhandle mountains Thursday afternoon into Friday. Otherwise
expect mostly dry and mild conditions with light winds. Passing
system will bring gusty south winds into the 20-30 mph across the
Basin between 1700-2200.
***************************************************************
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).
***************************************************************
WAZ696-698-180115-
East Washington Central Cascades (Zone 696)-
East Washington North Cascades (Zone 698)-
Including the cities of Stevens Pass, Lake Wenatchee Area,
and Leavenworth
451 AM PDT Thu Sep 17 2026
.Today...
* Sky/Weather.........Sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....75-85 valleys and 64-74 mountains.
* 24 hr Trend........6 degrees warmer.
* Min Humidity........22-30 percent.
* 24 hr Trend........5 percent drier valleys, and 12 percent drier
mountains.
* 20-foot winds.......
* Valleys/Lwr Slopes...North 3 to 6 mph in the morning shifting to
the southeast 3 to 7 mph in the afternoon.
* Ridges/Upr Slopes....North 3 to 6 mph in the morning shifting to
the northwest 3 to 7 mph in the afternoon.
* Mixing Height.......4500 ft AGL.
* Transport Winds.....North 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (296).
.TONIGHT...
* Sky/Weather.........Mostly clear.
* Chance of Lightning...0 percent.
* Min Temperature.....48-55 valleys and 41-50 mountains.
* 24 hr Trend........3 degrees warmer.
* Max Humidity........50-65 percent.
* 24 hr Trend........Unchanged valleys, and 5 percent drier
mountains.
* Humidity Recovery...Fair.
* 20-foot winds.......
* Valleys/Lwr Slopes...Northwest 3 to 7 mph.
* Ridges/Upr Slopes....Northwest 3 to 7 mph.
* Mixing Height.......2000 ft AGL falling to near surface.
* Transport Winds.....Northwest 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Low (179).
.FRIDAY...
* Sky/Weather.........Sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....72-82 valleys and 62-72 mountains.
* Min Humidity........26-40 percent.
* 20-foot winds.......
* Valleys/Lwr Slopes...Northwest 3 to 6 mph in the morning shifting
to the south 3 to 7 mph in the afternoon.
* Ridges/Upr Slopes....Northwest 3 to 6 mph in the morning shifting
to the southwest in the afternoon.
* Mixing Height.......5000 ft AGL.
* Transport Winds.....West 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Low (186) in the morning increasing to
moderate (422) in the afternoon.
.Forecast Days 3 Through 7......
.SATURDAY...Partly cloudy. Lows 47 to 55 valleys...40 to
49 mountains. Highs 73 to 83 valleys...62 to 72 mountains. West
wind up to 5 mph.
.SUNDAY...Mostly clear. Lows 47 to 55 valleys...40 to
49 mountains. Highs 75 to 85 valleys...64 to 74 mountains.
Southwest wind up to 5 mph.
.MONDAY...Partly cloudy. Lows 52 to 62 valleys...44 to
54 mountains. Highs 76 to 86 valleys...64 to 74 mountains. West
wind up to 5 mph.
.TUESDAY...Partly cloudy. Lows 49 to 59 valleys...41 to
51 mountains. Highs 70 to 80 valleys...58 to 68 mountains.
.WEDNESDAY...Mostly cloudy. Lows 46 to 56 valleys...38 to
48 mountains. Highs 66 to 76 valleys...55 to 65 mountains.
.8 to 14 Day Outlook for Sep 24 - 30 2026
Near normal temperatures and above normal precipitation.
$$
WAZ697-180115-
East Portion of North Cascades National Park/Lake Chelan National
Recreation Area (Zone 697)-
Including the city of Stehekin
451 AM PDT Thu Sep 17 2026
.Today...
* Sky/Weather.........Sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....78-88 valleys and 66-76 mountains.
* 24 hr Trend........15 degrees warmer.
* Min Humidity........24-29 percent.
* 24 hr Trend........2 percent drier valleys, and 8 percent drier
mountains.
* 20-foot winds.......
* Valleys/Lwr Slopes...North up to 5 mph in the morning shifting to
the southwest 3 to 7 mph in the afternoon.
* Ridges/Upr Slopes....Northeast 3 to 6 mph in the morning shifting
to the west 3 to 7 mph in the afternoon.
* Mixing Height.......5500 ft AGL.
* Transport Winds.....Northwest 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Low (92) in the morning increasing to
moderate (350) in the afternoon.
.TONIGHT...
* Sky/Weather.........Mostly clear.
* Chance of Lightning...0 percent.
* Min Temperature.....45-52 valleys and 39-45 mountains.
* 24 hr Trend........2 degrees warmer.
* Max Humidity........55-70 percent.
* 24 hr Trend........Unchanged valleys, and 10 percent wetter
mountains.
* Humidity Recovery...Fair.
* 20-foot winds.......
* Valleys/Lwr Slopes...Northwest 3 to 6 mph.
* Ridges/Upr Slopes....Northwest 3 to 6 mph.
* Mixing Height.......2000 ft AGL falling to near surface.
* Transport Winds.....Northwest 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Low (181).
.FRIDAY...
* Sky/Weather.........Sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....76-86 valleys and 63-73 mountains.
* Min Humidity........26-40 percent.
* 20-foot winds.......
* Valleys/Lwr Slopes...West 3 to 7 mph.
* Ridges/Upr Slopes....West 3 to 7 mph.
* Mixing Height.......5000 ft AGL.
* Transport Winds.....Northwest 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Low (177) in the morning increasing to
moderate (389) in the afternoon.
.Forecast Days 3 Through 7......
.SATURDAY THROUGH SUNDAY...Mostly clear. Lows 45 to 52 valleys...
37 to 45 mountains. Highs 78 to 88 valleys...65 to 75 mountains.
West wind up to 5 mph.
.MONDAY...Mostly clear. Lows 52 to 62 valleys...43 to
53 mountains. Highs 77 to 87 valleys...64 to 74 mountains. West
wind up to 10 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy. Lows 48 to
58 valleys...39 to 49 mountains. Highs 70 to 80 valleys...58 to
68 mountains.
.8 to 14 Day Outlook for Sep 24 - 30 2026
Near normal temperatures and above normal precipitation.
$$
WAZ704-180115-
Methow Valley (Zone 704)-
Including the cities of Mazama, Winthrop, and Twisp
451 AM PDT Thu Sep 17 2026
.Today...
* Sky/Weather.........Sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....77-86.
* 24 hr Trend........4 degrees warmer.
* Min Humidity........21-23 percent.
* 24 hr Trend........5 percent drier.
* 20-foot winds.......North 3 to 6 mph in the morning shifting to
the southeast in the afternoon.
* Mixing Height.......4500 ft AGL.
* Transport Winds.....North around 5 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (215).
.TONIGHT...
* Sky/Weather.........Mostly clear.
* Chance of Lightning...0 percent.
* Min Temperature.....49-56.
* 24 hr Trend........3 degrees warmer.
* Max Humidity........45-60 percent.
* 24 hr Trend........5 percent drier.
* Humidity Recovery...Poor.
* 20-foot winds.......Northwest 3 to 6 mph.
* Mixing Height.......2500 ft AGL falling to near surface.
* Transport Winds.....Northwest 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Low (108).
.FRIDAY...
* Sky/Weather.........Sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....74-84.
* Min Humidity........23-27 percent.
* 20-foot winds.......Northwest 3 to 6 mph in the morning shifting
to the southeast in the afternoon.
* Mixing Height.......5000 ft AGL.
* Transport Winds.....Southwest 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Low (145) in the morning increasing to
moderate (426) in the afternoon.
.Forecast Days 3 Through 7......
.SATURDAY...Partly cloudy. Lows 47 to 56. Highs 75 to 84. South
wind up to 5 mph.
.SUNDAY...Mostly clear. Lows 47 to 57. Highs 76 to 85. South wind
up to 5 mph.
.MONDAY...Partly cloudy. Lows 49 to 58. Highs 77 to 86. West wind
up to 5 mph.
.TUESDAY...Partly cloudy. Lows 47 to 56. Highs 72 to 80.
.WEDNESDAY...Partly cloudy. Lows 45 to 53. Highs 67 to 75.
.8 to 14 Day Outlook for Sep 24 - 30 2026
Near normal temperatures and above normal precipitation.
$$
WAZ703-180115-
Okanogan Valley (Zone 703)-
Including the cities of Conconully and Omak
451 AM PDT Thu Sep 17 2026
.Today...
* Sky/Weather.........Sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....74-82.
* 24 hr Trend........6 degrees warmer.
* Min Humidity........20-23 percent.
* 24 hr Trend........8 percent drier.
* 20-foot winds.......North 3 to 12 mph.
* Mixing Height.......4000 ft AGL.
* Transport Winds.....North 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (275).
.TONIGHT...
* Sky/Weather.........Mostly clear.
* Chance of Lightning...0 percent.
* Min Temperature.....49-56.
* 24 hr Trend........3 degrees warmer.
* Max Humidity........50-65 percent.
* 24 hr Trend........5 percent drier.
* Humidity Recovery...Fair.
* 20-foot winds.......North 3 to 9 mph.
* Mixing Height.......Falling to near surface.
* Transport Winds.....North 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Low (89).
.FRIDAY...
* Sky/Weather.........Sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....72-81.
* Min Humidity........23-28 percent.
* 20-foot winds.......North 3 to 6 mph in the morning shifting to
the southeast 3 to 5 mph in the afternoon.
* Mixing Height.......4000 ft AGL.
* Transport Winds.....Northeast around 5 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (202).
.Forecast Days 3 Through 7......
.SATURDAY THROUGH SUNDAY...Mostly clear. Lows 48 to 55. Highs
73 to 83. South wind up to 10 mph.
.MONDAY...Partly cloudy. Lows 52 to 57. Highs 76 to 84. Southwest
wind up to 10 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy. Lows 49 to 56. Highs
69 to 79.
.8 to 14 Day Outlook for Sep 24 - 30 2026
Near normal temperatures and above normal precipitation.
$$
WAZ702-180115-
Colville Reservation (Zone 702)-
Including the cities of Nespelem and Keller
451 AM PDT Thu Sep 17 2026
.Today...
* Sky/Weather.........Sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....74-83 valleys and 68-78 mountains.
* 24 hr Trend........5 degrees warmer.
* Min Humidity........20-23 percent.
* 24 hr Trend........14 percent drier.
* 20-foot winds.......
* Valleys/Lwr Slopes...North 3 to 9 mph. Gusts up to 20 mph in the
morning.
* Ridges/Upr Slopes....North 3 to 9 mph.
* Mixing Height.......4500 ft AGL.
* Transport Winds.....North 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (233).
.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Chance of Lightning...0 percent.
* Min Temperature.....45-51.
* 24 hr Trend........2 degrees warmer.
* Max Humidity........55-70 percent.
* 24 hr Trend........Unchanged valleys, and 5 percent drier
mountains.
* Humidity Recovery...Fair.
* 20-foot winds.......
* Valleys/Lwr Slopes...North 3 to 6 mph.
* Ridges/Upr Slopes....North 3 to 6 mph.
* Mixing Height.......2000 ft AGL falling to near surface.
* Transport Winds.....North around 5 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Low (109).
.FRIDAY...
* Sky/Weather.........Sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....71-81 valleys and 65-75 mountains.
* Min Humidity........25-30 percent.
* 20-foot winds.......
* Valleys/Lwr Slopes...East 3 to 5 mph in the morning shifting to
the south in the afternoon.
* Ridges/Upr Slopes....Northeast 3 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 around 5 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (287).
.Forecast Days 3 Through 7......
.SATURDAY THROUGH SUNDAY...Mostly clear. Lows 44 to 51. Highs
73 to 83 valleys...66 to 76 mountains. Southeast wind up to
5 mph.
.MONDAY...Mostly clear. Lows 51 to 56. Highs 75 to 85 valleys...
68 to 78 mountains. Southeast wind up to 5 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy. Lows 47 to 56. Highs
69 to 79 valleys...62 to 72 mountains.
.8 to 14 Day Outlook for Sep 24 - 30 2026
Near normal temperatures and above normal precipitation.
$$
WAZ699-180115-
Okanogan Highlands and Kettle Mountains (Zone 699)-
Including the cities of Republic and Curlew
451 AM PDT Thu Sep 17 2026
.Today...
* Sky/Weather.........Sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....74-84 valleys and 67-76 mountains.
* 24 hr Trend........4 degrees warmer.
* Min Humidity........20-24 percent.
* 24 hr Trend........13 percent drier.
* 20-foot winds.......
* Valleys/Lwr Slopes...North 3 to 8 mph.
* Ridges/Upr Slopes....North 3 to 8 mph.
* Mixing Height.......4500 ft AGL.
* Transport Winds.....North 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (218).
.TONIGHT...
* Sky/Weather.........Mostly clear.
* Chance of Lightning...0 percent.
* Min Temperature.....43-49.
* 24 hr Trend........4 degrees warmer.
* Max Humidity........50-65 percent.
* 24 hr Trend........Unchanged valleys, and 15 percent drier
mountains.
* Humidity Recovery...Fair.
* 20-foot winds.......
* Valleys/Lwr Slopes...North 3 to 6 mph.
* Ridges/Upr Slopes....North 3 to 6 mph.
* Mixing Height.......2000 ft AGL falling to near surface.
* Transport Winds.....North around 5 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Low (114).
.FRIDAY...
* Sky/Weather.........Sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....72-82 valleys and 66-75 mountains.
* Min Humidity........22-28 percent.
* 20-foot winds.......
* Valleys/Lwr Slopes...North 3 to 5 mph in the morning shifting to
the southwest in the afternoon.
* Ridges/Upr Slopes....North 3 to 5 mph in the morning shifting to
the southwest in the afternoon.
* Mixing Height.......5500 ft AGL.
* Transport Winds.....Southwest around 5 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Low (117) in the morning increasing to
moderate (318) in the afternoon.
.Forecast Days 3 Through 7......
.SATURDAY THROUGH SUNDAY...Mostly clear. Lows 41 to 48. Highs
75 to 85 valleys...67 to 77 mountains. South wind up to 5 mph.
.MONDAY...Mostly clear. Lows 47 to 53. Highs 76 to 86 valleys...
68 to 78 mountains. South wind up to 5 mph.
.TUESDAY...Partly cloudy. Lows 47 to 53. Highs 73 to 83 valleys...
65 to 73 mountains.
.WEDNESDAY...Mostly cloudy. Lows 44 to 51. Highs 69 to
79 valleys...60 to 69 mountains.
.8 to 14 Day Outlook for Sep 24 - 30 2026
Near normal temperatures and above normal precipitation.
$$
WAZ700-701-180115-
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
451 AM PDT Thu Sep 17 2026
.Today...
* Sky/Weather.........Mostly sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....75-83 valleys and 67-76 mountains.
* 24 hr Trend........6 degrees warmer.
* Min Humidity........20-25 percent.
* 24 hr Trend........13 percent drier.
* 20-foot winds.......
* Valleys/Lwr Slopes...North 3 to 7 mph.
* Ridges/Upr Slopes....North 3 to 7 mph.
* Mixing Height.......4000 ft AGL.
* Transport Winds.....North 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (221).
.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Chance of Lightning...0 percent.
* Min Temperature.....42-48.
* 24 hr Trend........2 degrees warmer.
* Max Humidity........71-90 percent valleys and 65-80 percent
mountains.
* 24 hr Trend........Unchanged valleys, and 5 percent wetter
mountains.
* Humidity Recovery...Good.
* 20-foot winds.......
* Valleys/Lwr Slopes...North 3 to 6 mph in the evening shifting to
the south overnight.
* Ridges/Upr Slopes....North 3 to 6 mph in the evening shifting to
the south overnight.
* Mixing Height.......Falling to near surface.
* Transport Winds.....North around 5 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Low (67).
.FRIDAY...
* Sky/Weather.........Mostly sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....72-80 valleys and 64-73 mountains.
* Min Humidity........26-35 percent.
* 20-foot winds.......
* Valleys/Lwr Slopes...Southeast 3 to 4 mph in the morning shifting
to the southwest 3 to 5 mph in the afternoon.
* Ridges/Upr Slopes....Southeast 3 to 5 mph in the morning shifting
to the southwest in the afternoon.
* Mixing Height.......4500 ft AGL.
* Transport Winds.....South around 5 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (322).
.Forecast Days 3 Through 7......
.SATURDAY...Mostly clear. Lows 41 to 48. Highs 74 to 82 valleys...
64 to 74 mountains. South wind up to 5 mph.
.SUNDAY...Mostly clear. Lows 42 to 48. Highs 75 to 83 valleys...
66 to 75 mountains. Southeast wind up to 5 mph.
.MONDAY...Mostly clear. Lows 46 to 54. Highs 76 to 84 valleys...
66 to 76 mountains. Southeast wind up to 5 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy. Lows 45 to 54. Highs
70 to 80 valleys...62 to 72 mountains.
.8 to 14 Day Outlook for Sep 24 - 30 2026
Near normal temperatures and above normal precipitation.
$$
IDZ101-180115-
Northern and Central Idaho Panhandle (Zone 101)-
Including the cities of St. Maries, Rathdrum Prairie,
Silver Valley, Bonners Ferry, and Priest Lake
451 AM PDT Thu Sep 17 2026
.Today...
* Sky/Weather.........Mostly sunny. A chance of rain showers late
in the afternoon.
* Chance of Lightning...0 percent.
* Max Temperature.....75-81 valleys and 67-77 mountains.
* 24 hr Trend........6 degrees warmer.
* Min Humidity........25-35 percent valleys and 29-45 percent
mountains.
* 24 hr Trend........10 percent drier valleys, and 5 percent drier
mountains.
* 20-foot winds.......
* Valleys/Lwr Slopes...North 3 to 8 mph.
* Ridges/Upr Slopes....Northeast 3 to 8 mph.
* Mixing Height.......4000 ft AGL.
* Transport Winds.....Northeast 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (236).
.TONIGHT...
* Sky/Weather.........Mostly cloudy then becoming partly cloudy. A
chance of rain showers.
* Chance of Lightning...0 percent.
* Min Temperature.....44-51.
* 24 hr Trend........3 degrees warmer.
* Max Humidity........70-80 percent.
* 24 hr Trend........10 percent wetter valleys, and unchanged
mountains.
* Humidity Recovery...Good.
* 20-foot winds.......
* Valleys/Lwr Slopes...Southwest 3 to 8 mph with gusts to around 25
mph in the evening shifting to the south 3 to 6 mph
overnight.
* Ridges/Upr Slopes....Southwest 3 to 10 mph.
* Mixing Height.......Falling to near surface.
* Transport Winds.....Southwest 5 to 10 mph.
* CWR (> 0.10 IN).....10 percent.
* Ventilation Index...Low (79).
.FRIDAY...
* Sky/Weather.........Mostly sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....70-79 valleys and 61-71 mountains.
* Min Humidity........30-40 percent valleys and 40-55 percent
mountains.
* 20-foot winds.......
* Valleys/Lwr Slopes...South 3 to 4 mph in the morning shifting to
the west 3 to 6 mph in the afternoon.
* Ridges/Upr Slopes....West 3 to 6 mph.
* Mixing Height.......4500 ft AGL.
* Transport Winds.....Southwest 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Low (157) in the morning increasing to high
(565) in the afternoon.
.Forecast Days 3 Through 7......
.SATURDAY...Mostly clear. Lows 43 to 50. Highs 72 to 81 valleys...
63 to 73 mountains. Southwest wind up to 5 mph.
.SUNDAY...Clear. Lows 44 to 51. Highs 75 to 82 valleys...66 to
76 mountains. South wind up to 5 mph.
.MONDAY...Mostly clear. Lows 47 to 55. Highs 76 to 82 valleys...
67 to 77 mountains. South wind up to 5 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy. Lows 45 to 55. Highs
70 to 79 valleys...63 to 73 mountains.
.8 to 14 Day Outlook for Sep 24 - 30 2026
Near normal temperatures and above normal precipitation.
$$
WAZ707-180115-
Western Columbia Basin (Zone 707)-
Including the cities of Moses Lake and Ephrata
451 AM PDT Thu Sep 17 2026
.Today...
* Sky/Weather.........Mostly sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....77-81.
* 24 hr Trend........1 degree warmer.
* Min Humidity........20-30 percent.
* 24 hr Trend........1 percent drier.
* 20-foot winds.......North 3 to 11 mph.
* Mixing Height.......4500 ft AGL.
* Transport Winds.....North 5 to 15 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (378).
.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Chance of Lightning...0 percent.
* Min Temperature.....50-55.
* 24 hr Trend........2 degrees warmer.
* Max Humidity........70-80 percent.
* 24 hr Trend........20 percent wetter.
* Humidity Recovery...Good.
* 20-foot winds.......South 3 to 10 mph.
* Mixing Height.......Falling to near surface.
* Transport Winds.....Southwest 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Low (119).
.FRIDAY...
* Sky/Weather.........Mostly sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....75-79.
* Min Humidity........27-40 percent.
* 20-foot winds.......Northeast 3 to 6 mph in the morning shifting
to the south in the afternoon.
* Mixing Height.......4500 ft AGL.
* Transport Winds.....Southwest 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (285).
.Forecast Days 3 Through 7......
.SATURDAY...Mostly clear. Lows 49 to 56. Highs in the mid 70s to
lower 80s. South wind up to 5 mph.
.SUNDAY THROUGH MONDAY...Mostly clear. Lows 48 to 58. Highs 78 to
85. West wind up to 5 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy. Lows 49 to 57. Highs
71 to 80.
.8 to 14 Day Outlook for Sep 24 - 30 2026
Near normal temperatures and above normal precipitation.
$$
WAZ708-180115-
Eastern Columbia Basin - Palouse - Spokane Area (Zone 708)-
Including the cities of Spokane, Pullman, Ritzville, Wilbur,
and Cheney
451 AM PDT Thu Sep 17 2026
.Today...
* Sky/Weather.........Mostly sunny. A chance of rain showers late
in the afternoon.
* Chance of Lightning...0 percent.
* Max Temperature.....76-82.
* 24 hr Trend........3 degrees warmer.
* Min Humidity........20-30 percent.
* 24 hr Trend........9 percent drier.
* 20-foot winds.......North 3 to 11 mph.
* Mixing Height.......4500 ft AGL.
* Transport Winds.....North 5 to 15 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (356).
.TONIGHT...
* Sky/Weather.........Mostly cloudy. A chance of rain showers in
the evening. A chance of rain showers overnight.
* Chance of Lightning...0 percent.
* Min Temperature.....49-54.
* 24 hr Trend........4 degrees warmer.
* Max Humidity........80-90 percent.
* 24 hr Trend........20 percent wetter.
* Humidity Recovery...Good.
* 20-foot winds.......South 3 to 12 mph. Gusts up to 25 mph in the
evening.
* Mixing Height.......1500 ft AGL falling to near surface.
* Transport Winds.....Southwest 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Low (154).
.FRIDAY...
* Sky/Weather.........Mostly sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....74-80.
* Min Humidity........28-35 percent.
* 20-foot winds.......Southeast 3 to 6 mph in the morning shifting
to the southwest 4 to 6 mph in the afternoon.
* Mixing Height.......5000 ft AGL.
* Transport Winds.....Southwest 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (329).
.Forecast Days 3 Through 7......
.SATURDAY...Mostly clear. Lows near 50. Highs 76 to 82. South
wind up to 5 mph.
.SUNDAY THROUGH MONDAY...Mostly clear. Lows 47 to 55. Highs 79 to
88. South wind up to 5 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy. Lows 48 to 55. Highs
73 to 83.
.8 to 14 Day Outlook for Sep 24 - 30 2026
Near normal temperatures and above normal precipitation.
$$
WAZ709-180115-
Lower Palouse - Snake River (Zone 709)-
Including the city of Pomeroy
451 AM PDT Thu Sep 17 2026
.Today...
* Sky/Weather.........Partly sunny. A chance of rain showers early
in the afternoon. A chance of showers and thunderstorms late in
the afternoon.
* Chance of Lightning...20 percent.
* Max Temperature.....69-79.
* 24 hr Trend........5 degrees cooler.
* Min Humidity........35-45 percent.
* 24 hr Trend........10 percent wetter.
* 20-foot winds.......West 3 to 11 mph.
* Mixing Height.......2500 ft AGL.
* Transport Winds.....West 5 to 15 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (227).
.TONIGHT...
* 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.....53-57.
* 24 hr Trend........1 degree warmer.
* Max Humidity........75-90 percent.
* 24 hr Trend........10 percent wetter.
* Humidity Recovery...Good.
* 20-foot winds.......Southwest 6 to 17 mph.
* Mixing Height.......Falling to near surface.
* Transport Winds.....Southwest 5 to 10 mph.
* CWR (> 0.10 IN).....10 percent.
* Ventilation Index...Low (97).
.FRIDAY...
* Sky/Weather.........Mostly sunny. A chance of rain showers until
late afternoon.
* Chance of Lightning...0 percent.
* Max Temperature.....72-82.
* Min Humidity........35-45 percent.
* 20-foot winds.......South 3 to 10 mph in the morning shifting to
the west 3 to 8 mph in the afternoon.
* Mixing Height.......4500 ft AGL.
* Transport Winds.....Southwest 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (410).
.Forecast Days 3 Through 7......
.SATURDAY...Mostly clear. Lows 51 to 56. Highs 74 to 84.
Southeast wind up to 5 mph.
.SUNDAY...Clear. Lows in the lower to mid 50s. Highs 78 to 88.
East wind up to 5 mph.
.MONDAY...Mostly clear. Lows in the 50s. Highs 80 to 89. South
wind up to 5 mph.
.TUESDAY...Mostly clear. Lows in the 50s. Highs 76 to 85.
.WEDNESDAY...Partly cloudy. Lows in the lower to mid 50s. Highs
72 to 81.
.8 to 14 Day Outlook for Sep 24 - 30 2026
Near normal temperatures and above normal precipitation.
$$
WAZ705-706-180115-
Foothills of Central Washington Cascades (Zone 705)-
Waterville Plateau (Zone 706)-
Including the cities of Chelan, Wenatchee, Waterville,
and Grand Coulee
451 AM PDT Thu Sep 17 2026
.Today...
* Sky/Weather.........Sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....74-84.
* 24 hr Trend........2 degrees warmer.
* Min Humidity........19-25 percent.
* 24 hr Trend........14 percent drier.
* 20-foot winds.......North 3 to 11 mph.
* Mixing Height.......4000 ft AGL.
* Transport Winds.....North 5 to 15 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (301).
.TONIGHT...
* Sky/Weather.........Mostly clear.
* Chance of Lightning...0 percent.
* Min Temperature.....50-57.
* 24 hr Trend........3 degrees warmer.
* Max Humidity........60-75 percent.
* 24 hr Trend........Unchanged.
* Humidity Recovery...Fair.
* 20-foot winds.......Northwest 3 to 7 mph.
* Mixing Height.......1500 ft AGL falling to near surface.
* Transport Winds.....Northwest 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Low (104).
.FRIDAY...
* Sky/Weather.........Sunny.
* Chance of Lightning...0 percent.
* Max Temperature.....73-83.
* Min Humidity........25-30 percent.
* 20-foot winds.......North 3 to 6 mph in the morning shifting to
the southeast 3 to 5 mph in the afternoon.
* Mixing Height.......5000 ft AGL.
* Transport Winds.....West 5 to 10 mph.
* CWR (> 0.10 IN).....0 percent.
* Ventilation Index...Moderate (243).
.Forecast Days 3 Through 7......
.SATURDAY THROUGH SUNDAY...Mostly clear. Lows 49 to 58. Highs
74 to 84. Southeast wind up to 5 mph.
.MONDAY...Mostly clear. Lows 52 to 60. Highs 77 to 86. West wind
up to 5 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy. Lows 48 to 58. Highs
68 to 78.
.8 to 14 Day Outlook for Sep 24 - 30 2026
Near normal temperatures and above normal precipitation.
$$