Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Seattle/Tacoma, WA
Issued by NWS Seattle/Tacoma, WA
491
FNUS56 KSEW 140958
FWFSEW
Fire Weather Planning Forecast for Western Washington
National Weather Service Seattle WA
258 AM PDT Mon Sep 14 2026
.DISCUSSION...Light onshore flow in the lower levels and
northwesterly flow aloft today. Upper level trough moving through
Tuesday morning. The weather pattern turns drier and warmer Wednesday
into Thursday with the surface winds going light offshore briefly
Wednesday night into Thursday. This will drop daytime minimum
relative humidity just below 30%, which will allow more reactive
fuels to start to dry out. The offshore flow will be short lived with
the low level flow turning back onshore Thursday night into Friday
easing any fire weather concerns. Low level onshore flow pattern
continuing through the weekend.
Forecast for 20 foot wind speed (valleys and ridge tops) are 10
minute averages reflecting RAWS winds.
WAZ649-142315-
North and Central Coastal Strip-
258 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather...........Mostly cloudy.
* Max temperature.......56-66.
* Min humidity..........70-85 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Light winds becoming southwest around 4 mph
in the afternoon.
* Ridges/upr slopes...Light winds becoming southwest around 3 mph
in the afternoon.
* Mixing height.........1000-2000 ft AGL.
* Transport winds.......Southwest around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...4 percent.
.TONIGHT...
* Sky/weather...........Mostly cloudy.
* Min temperature.......48-58.
* Max humidity..........87-near 100 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Northwest winds around 3 mph in the evening
becoming light.
* Ridges/upr slopes...Northwest winds 3 to 4 mph.
* Mixing height.........500-1000 ft AGL.
* Transport winds.......Northwest around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...2 percent.
.TUESDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......58-68.
* Min humidity..........67-82 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Light winds becoming northwest around 5 mph
in the afternoon.
* Ridges/upr slopes...Light winds becoming northwest around 4 mph
in the afternoon.
* Mixing height.........1000-2000 ft AGL.
* Transport winds.......North around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...2 percent.
.TUESDAY NIGHT...Mostly clear. Patchy fog after midnight. Lows in
the lower 50s. Northwest winds around 4 mph in the evening becoming
light.
.WEDNESDAY...Warmer, sunny. Highs 66 to 76. Light winds becoming
northwest around 4 mph in the afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 50s. Northwest
winds around 4 mph in the evening becoming light.
.THURSDAY...Sunny. Highs 68 to 78. Light winds becoming northwest
around 3 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. Light winds.
.FRIDAY...Mostly sunny. Highs 63 to 73. South winds around 4 mph.
.SATURDAY...Mostly cloudy. Lows in the mid 50s. Highs in the mid
60s.
.SUNDAY...Partly cloudy. Lows in the lower 50s. Highs 60 to 70.
.8 to 14 Day Outlook for Sep 21 - 27 2026
Near normal temperatures and above normal precipitation.
$$
WAZ650-142315-
North Coastal Lowlands-
258 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather...........Partly sunny.
* Max temperature.......55-65.
* Min humidity..........71-86 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Light winds becoming southwest around 3 mph
in the afternoon.
* Ridges/upr slopes...Light winds becoming southwest around 3 mph
in the afternoon.
* Mixing height.........1200-2200 ft AGL.
* Transport winds.......Southwest around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...3 percent.
.TONIGHT...
* Sky/weather...........Mostly cloudy.
* Min temperature.......46-56.
* Max humidity..........81-96 percent...except 87-100 percent
ridges.
* 20-foot winds.........
* Valleys/lwr slopes..Northwest winds up to 3 mph.
* Ridges/upr slopes...Northwest winds up to 3 mph.
* Mixing height.........400-1100 ft AGL.
* Transport winds.......Northwest around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...2 percent.
.TUESDAY...
* Sky/weather...........Mostly sunny. Patchy fog in the morning.
* Max temperature.......57-67.
* Min humidity..........63-78 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Light winds becoming northwest around 3 mph
in the afternoon.
* Ridges/upr slopes...Light winds becoming north around 4 mph in
the afternoon.
* Mixing height.........800 ft AGL increasing to 2800 ft AGL in the
afternoon.
* Transport winds.......North around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...2 percent.
.TUESDAY NIGHT...Mostly clear. Patchy fog after midnight. Lows
around 50. Light winds.
.WEDNESDAY...Warmer, sunny. Highs in the lower 70s. East winds
around 3 mph in the morning becoming light.
.WEDNESDAY NIGHT...Clear. Lows in the lower 50s. Light winds.
.THURSDAY...Sunny. Highs 71 to 81. Light winds.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. Light winds.
.FRIDAY...Sunny. Highs in the lower 70s. Light winds.
.SATURDAY...Partly cloudy. Lows in the mid 50s. Highs 61 to 71.
.SUNDAY...Partly cloudy. Lows in the lower 50s. Highs in the upper
60s.
.8 to 14 Day Outlook for Sep 21 - 27 2026
Near normal temperatures and above normal precipitation.
$$
WAZ651-142315-
Central Coastal Lowlands-
258 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather...........Partly sunny.
* Max temperature.......55-65.
* Min humidity..........66-81 percent...except 83 percent ridges.
* 20-foot winds.........
* Valleys/lwr slopes..Light winds becoming west around 3 mph in the
afternoon.
* Ridges/upr slopes...Light winds becoming west around 3 mph in the
afternoon.
* Mixing height.........1300-2300 ft AGL.
* Transport winds.......West 5 to 10 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...4 percent.
.TONIGHT...
* Sky/weather...........Mostly cloudy.
* Min temperature.......44-54.
* Max humidity..........86-100 percent.
* 20-foot winds.........
* Valleys/lwr slopes..West winds around 3 mph in the evening
becoming light.
* Ridges/upr slopes...West winds around 3 mph in the evening
becoming light.
* Mixing height.........400-1200 ft AGL.
* Transport winds.......Northwest around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...2 percent.
.TUESDAY...
* Sky/weather...........Partly sunny. Patchy fog in the morning.
* Max temperature.......55-65.
* Min humidity..........66-81 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Northwest winds up to 3 mph.
* Ridges/upr slopes...Northwest winds up to 3 mph.
* Mixing height.........800 ft AGL increasing to 2800 ft AGL in the
afternoon.
* Transport winds.......North around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...2 percent.
.TUESDAY NIGHT...Mostly clear. Patchy fog. Lows in the upper 40s.
Light winds.
.WEDNESDAY...Warmer, sunny. Highs in the mid 70s valleys...65 to
75 ridges. Northeast winds 3 to 4 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 50s. Light winds.
.THURSDAY...Sunny. Highs in the upper 70s. Northeast winds around
3 mph in the morning becoming light.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. Light winds.
.FRIDAY...Mostly sunny. Highs 69 to 79 valleys...63 to 73 ridges.
Light winds.
.SATURDAY...Partly cloudy. Lows in the lower 50s. Highs 63 to
73 valleys...58 to 68 ridges.
.SUNDAY...Partly cloudy. Lows in the lower 50s. Highs around
70 valleys...60 to 70 ridges.
.8 to 14 Day Outlook for Sep 21 - 27 2026
Near normal temperatures and above normal precipitation.
$$
WAZ652-142315-
West Portion of the Olympic Mountains-
258 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather...........Partly sunny.
* Max temperature.......53-63...except 49-59 ridges.
* Min humidity..........68-83 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Upslope/upvalley 2 to 3 mph.
* Ridges/upr slopes...Light winds becoming west around 4 mph in the
afternoon.
* Mixing height.........1000-2000 ft AGL.
* Transport winds.......West around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...3 percent.
* Freezing level........12000 Feet.
.TONIGHT...
* Sky/weather...........Mostly cloudy.
* Min temperature.......40-50.
* Max humidity..........80-95 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Downslope/downvalley 1 to 2 mph.
* Ridges/upr slopes...Northwest winds up to 3 mph.
* Mixing height.........400-1000 ft AGL.
* Transport winds.......West around 5 mph shifting to the north
after midnight.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...1 percent.
* Freezing level........11000 Feet.
.TUESDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......56-66...except 51-61 ridges.
* Min humidity..........60-75 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Upslope/upvalley 1 to 3 mph.
* Ridges/upr slopes...Light winds becoming northwest around 3 mph
in the afternoon.
* Mixing height.........1300-2300 ft AGL.
* Transport winds.......Northeast around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...5 percent.
* Freezing level........9000 Feet.
.TUESDAY NIGHT...Mostly clear. Freezing level 11000 feet. Lows 43 to
53. Light winds becoming northeast around 6 mph after midnight.
.WEDNESDAY...Warmer, sunny. Freezing level 12500 feet. Highs 66 to
76 valleys...61 to 71 ridges. Northeast winds around 6 mph shifting
to the northwest around 3 mph in the afternoon.
.WEDNESDAY NIGHT...Clear. Freezing level 13500 feet. Lows 46 to 56.
Light winds becoming northeast around 4 mph after midnight.
.THURSDAY...Sunny. Freezing level 13500 feet. Highs 67 to 77.
Northeast winds around 4 mph shifting to the west around 3 mph in
the afternoon.
.THURSDAY NIGHT...Clear. Freezing level 13500 feet. Lows 47 to 57.
Light winds.
.FRIDAY...Sunny. Freezing level 13500 feet. Highs 62 to 72. Light
winds.
.SATURDAY...Mostly clear. Freezing level 13000 feet. Lows in the
lower 50s. Highs 57 to 67.
.SUNDAY...Mostly clear. Freezing level 13000 feet. Lows in the upper
40s. Highs 58 to 68.
.8 to 14 Day Outlook for Sep 21 - 27 2026
Near normal temperatures and above normal precipitation.
$$
WAZ661-142315-
East Portion of the Olympic Mountains-
258 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather...........Partly sunny.
* Max temperature.......55-65...except 49-59 ridges.
* Min humidity..........64-79 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Upslope/upvalley 3 to 4 mph.
* Ridges/upr slopes...West winds 3 to 5 mph.
* Mixing height.........1000-2000 ft AGL.
* Transport winds.......West around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...2 percent.
* Freezing level........11500 Feet.
.TONIGHT...
* Sky/weather...........Mostly cloudy.
* Min temperature.......43-53...except 40-50 ridges.
* Max humidity..........81-96 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Downslope/downvalley 1 to 2 mph.
* Ridges/upr slopes...Northwest winds up to 3 mph.
* Mixing height.........400-900 ft AGL.
* Transport winds.......West around 5 mph shifting to the north
after midnight.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...1 percent.
* Freezing level........11000 Feet.
.TUESDAY...
* Sky/weather...........Mostly sunny. Isolated showers in the
afternoon.
* Max temperature.......55-65...except 48-58 ridges.
* Min humidity..........70-85 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Upslope/upvalley 1 to 3 mph.
* Ridges/upr slopes...Light winds becoming northeast around 3 mph
in the afternoon.
* Mixing height.........1000-2000 ft AGL.
* Transport winds.......Northeast around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...4 percent.
* Freezing level........9000 Feet.
.TUESDAY NIGHT...Mostly clear. Freezing level 10500 feet. Lows 42 to
52. Northwest winds 3 to 6 mph.
.WEDNESDAY...Warmer, sunny. Freezing level 12500 feet. Highs 66 to
76 valleys...57 to 67 ridges. North winds 3 to 6 mph.
.WEDNESDAY NIGHT...Clear. Freezing level 13500 feet. Lows in the
lower 50s valleys...in the upper 40s ridges. Northwest winds 3 to
5 mph.
.THURSDAY...Sunny. Freezing level 13000 feet. Highs 68 to
78 valleys...61 to 71 ridges. North winds 3 to 5 mph.
.THURSDAY NIGHT...Clear. Freezing level 13500 feet. Lows 46 to 56.
Light winds.
.FRIDAY...Sunny. Freezing level 13500 feet. Highs 65 to 75 valleys...
59 to 69 ridges. West winds around 3 mph.
.SATURDAY...Mostly clear. Freezing level 13000 feet. Lows 46 to 56.
Highs 60 to 70 valleys...53 to 63 ridges.
.SUNDAY...Mostly clear. Freezing level 13000 feet. Lows in the lower
50s valleys...in the mid 40s ridges. Highs 61 to 71 valleys...54 to
64 ridges.
.8 to 14 Day Outlook for Sep 21 - 27 2026
Near normal temperatures and above normal precipitation.
$$
WAZ653-142315-
Strait of Juan De Fuca and Northwest Interior Lowlands-
258 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather...........Partly sunny. Areas of drizzle in the
morning.
* Max temperature.......58-68.
* Min humidity..........62-77 percent.
* 20-foot winds.........South winds 3 to 6 mph.
* Mixing height.........700-1400 ft AGL.
* Transport winds.......South 5 to 10 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...3 percent.
.TONIGHT...
* Sky/weather...........Mostly cloudy.
* Min temperature.......45-55.
* Max humidity..........82-97 percent.
* 20-foot winds.........West winds around 3 mph in the evening
becoming light.
* Mixing height.........400-600 ft AGL.
* Transport winds.......West around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.TUESDAY...
* Sky/weather...........Mostly cloudy then becoming mostly sunny.
* Max temperature.......59-69.
* Min humidity..........64-79 percent.
* 20-foot winds.........Light winds becoming northwest around 5 mph
in the afternoon.
* Mixing height.........600-1500 ft AGL.
* Transport winds.......Northwest 5 to 10 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...1 percent.
.TUESDAY NIGHT...Mostly clear. Lows in the lower 50s. Northwest
winds around 3 mph in the evening becoming light.
.WEDNESDAY...Warmer, sunny. Highs 67 to 77. Light winds becoming
north around 4 mph in the afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 50s. Northwest
winds around 3 mph in the evening becoming light.
.THURSDAY...Sunny. Highs 69 to 79. Light winds becoming northwest
around 5 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. Light winds.
.FRIDAY...Sunny. Highs 66 to 76. Light winds.
.SATURDAY...Partly cloudy. Lows in the lower 50s. Highs 63 to 73.
.SUNDAY...Partly cloudy. Lows in the lower 50s. Highs 63 to 73.
.8 to 14 Day Outlook for Sep 21 - 27 2026
Near normal temperatures and above normal precipitation.
$$
WAZ654-142315-
Central and South Puget Sound Lowlands-
258 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather...........Partly sunny.
* Max temperature.......58-68.
* Min humidity..........65-80 percent.
* 20-foot winds.........South winds 4 to 7 mph.
* Mixing height.........1000 ft AGL increasing to 3200 ft AGL in
the afternoon.
* Transport winds.......Southwest around 10 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...2 percent.
.TONIGHT...
* Sky/weather...........Mostly cloudy.
* Min temperature.......47-57.
* Max humidity..........85-100 percent.
* 20-foot winds.........Southwest winds around 3 mph in the evening
becoming light.
* Mixing height.........400-1300 ft AGL.
* Transport winds.......West around 5 mph shifting to the north
after midnight.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...1 percent.
.TUESDAY...
* Sky/weather...........Mostly cloudy then becoming mostly sunny.
Patchy fog in the morning.
* Max temperature.......57-67.
* Min humidity..........64-79 percent.
* 20-foot winds.........Light winds becoming northeast around 5 mph
in the afternoon.
* Mixing height.........1300-2300 ft AGL.
* Transport winds.......Northeast 5 to 10 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...2 percent.
.TUESDAY NIGHT...Clear. Lows 46 to 56. North winds 3 to 5 mph.
.WEDNESDAY...Warmer, sunny. Highs 70 to 80. Light winds becoming
northeast around 5 mph in the afternoon.
.WEDNESDAY NIGHT...Clear. Lows 48 to 58. North winds 3 to 5 mph.
.THURSDAY...Sunny. Highs in the mid 70s. North winds 3 to 6 mph.
.THURSDAY NIGHT...Clear. Lows in the lower 50s. Light winds.
.FRIDAY...Sunny. Highs in the mid 70s. Southwest winds around 4 mph.
.SATURDAY...Mostly clear. Lows in the lower 50s. Highs 65 to 75.
.SUNDAY...Mostly clear. Lows in the lower 50s. Highs around 70.
.8 to 14 Day Outlook for Sep 21 - 27 2026
Near normal temperatures and above normal precipitation.
$$
WAZ655-142315-
Black Hills and Southwest Interior Lowlands-
258 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather...........Partly sunny.
* Max temperature.......58-68.
* Min humidity..........62-77 percent.
* 20-foot winds.........Southwest winds 3 to 4 mph.
* Mixing height.........900 ft AGL increasing to 3200 ft AGL in the
afternoon.
* Transport winds.......Southwest around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...3 percent.
.TONIGHT...
* Sky/weather...........Mostly cloudy. Patchy fog after midnight.
* Min temperature.......43-53.
* Max humidity..........85-100 percent.
* 20-foot winds.........West winds up to 3 mph.
* Mixing height.........400-1400 ft AGL.
* Transport winds.......West around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...2 percent.
.TUESDAY...
* Sky/weather...........Partly sunny. Areas of fog in the morning.
* Max temperature.......58-68.
* Min humidity..........68-83 percent.
* 20-foot winds.........North winds up to 3 mph.
* Mixing height.........800 ft AGL increasing to 3100 ft AGL in the
afternoon.
* Transport winds.......North around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...2 percent.
.TUESDAY NIGHT...Mostly clear. Patchy fog after midnight. Lows in
the upper 40s. North winds 3 to 4 mph.
.WEDNESDAY...Warmer, sunny. Patchy fog in the morning. Highs in the
mid 70s. Light winds becoming northeast around 3 mph in the
afternoon.
.WEDNESDAY NIGHT...Clear. Lows 46 to 56. Northeast winds 3 to 4 mph.
.THURSDAY...Sunny. Highs in the upper 70s. Northeast winds 3 to
4 mph.
.THURSDAY NIGHT...Clear. Lows 47 to 57. Light winds.
.FRIDAY...Sunny. Highs 72 to 82. Light winds.
.SATURDAY...Mostly clear. Lows in the lower 50s. Highs in the lower
70s.
.SUNDAY...Partly cloudy. Lows around 50. Highs in the lower 70s.
.8 to 14 Day Outlook for Sep 21 - 27 2026
Near normal temperatures and above normal precipitation.
$$
WAZ656-142315-
Northeast Puget Sound Lowlands Generally Below 1500 Feet-
258 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather...........Mostly cloudy. Areas of drizzle in the
morning.
* Max temperature.......53-63.
* Min humidity..........66-81 percent.
* 20-foot winds.........South winds around 3 mph in the morning
becoming light.
* Mixing height.........1400-2400 ft AGL.
* Transport winds.......South 5 to 10 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...5 percent.
.TONIGHT...
* Sky/weather...........Mostly cloudy. Areas of drizzle after
midnight.
* Min temperature.......44-54.
* Max humidity..........78-93 percent.
* 20-foot winds.........Light winds.
* Mixing height.........400-1100 ft AGL.
* Transport winds.......Southwest around 5 mph shifting to the
northeast after midnight.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...1 percent.
.TUESDAY...
* Sky/weather...........Mostly cloudy then becoming mostly sunny.
Areas of drizzle in the morning.
* Max temperature.......55-65.
* Min humidity..........61-76 percent.
* 20-foot winds.........Light winds becoming northwest around 3 mph
in the afternoon.
* Mixing height.........1000-2000 ft AGL.
* Transport winds.......North around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...4 percent.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. Light winds.
.WEDNESDAY...Warmer, sunny. Highs in the mid 70s. East winds around
3 mph in the morning becoming light.
.WEDNESDAY NIGHT...Clear. Lows in the lower 50s. Light winds.
.THURSDAY...Sunny. Highs in the upper 70s. Light winds becoming west
around 3 mph in the afternoon.
.THURSDAY NIGHT...Clear. Lows in the lower 50s. Light winds.
.FRIDAY...Sunny. Highs 71 to 81. Light winds.
.SATURDAY...Mostly clear. Lows in the mid 50s. Highs 67 to 77.
.SUNDAY...Partly cloudy. Lows in the lower 50s. Highs 67 to 77.
.8 to 14 Day Outlook for Sep 21 - 27 2026
Near normal temperatures and above normal precipitation.
$$
WAZ657-142315-
Southeast Puget Sound Lowlands Generally Below 1500 Feet-
258 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather...........Partly sunny.
* Max temperature.......58-68.
* Min humidity..........66-81 percent.
* 20-foot winds.........South winds around 3 mph in the morning
becoming light.
* Mixing height.........1300 ft AGL increasing to 3400 ft AGL in
the afternoon.
* Transport winds.......Southwest 5 to 10 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...3 percent.
.TONIGHT...
* Sky/weather...........Mostly cloudy.
* Min temperature.......45-55.
* Max humidity..........85-100 percent.
* 20-foot winds.........Light winds.
* Mixing height.........500-1500 ft AGL.
* Transport winds.......Southwest around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...1 percent.
.TUESDAY...
* Sky/weather...........Cloudy then becoming partly sunny. Patchy
fog in the morning. Areas of drizzle in the morning.
* Max temperature.......57-67.
* Min humidity..........68-83 percent.
* 20-foot winds.........North winds up to 3 mph.
* Mixing height.........1300-2300 ft AGL.
* Transport winds.......North around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...5 percent.
.TUESDAY NIGHT...Mostly clear. Patchy fog after midnight. Lows 45 to
55. Light winds.
.WEDNESDAY...Warmer, sunny. Patchy fog in the morning. Highs in the
mid 70s. Light winds becoming north around 3 mph in the afternoon.
.WEDNESDAY NIGHT...Clear. Lows 47 to 57. Light winds.
.THURSDAY...Sunny. Highs in the upper 70s. Light winds.
.THURSDAY NIGHT...Clear. Lows 48 to 58. Light winds.
.FRIDAY...Sunny. Highs in the mid 70s. Light winds.
.SATURDAY...Mostly clear. Lows in the lower 50s. Highs in the lower
70s.
.SUNDAY...Partly cloudy. Lows 47 to 57. Highs in the lower 70s.
.8 to 14 Day Outlook for Sep 21 - 27 2026
Near normal temperatures and above normal precipitation.
$$
WAZ658-142315-
West Slopes of the North Cascades Generally above 1500 Feet-
258 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather...........Mostly cloudy.
* Max temperature.......51-61...except 45-55 ridges.
* Min humidity..........73-88 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Upslope/upvalley around 3 mph.
* Ridges/upr slopes...Southwest winds 3 to 5 mph.
* Mixing height.........1000-1900 ft AGL.
* Transport winds.......Southwest 5 to 10 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...5 percent.
* Freezing level........10500 Feet.
.TONIGHT...
* Sky/weather...........Mostly cloudy.
* Min temperature.......42-52...except 37-47 ridges.
* Max humidity..........77-92 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Downslope/downvalley 1 to 2 mph.
* Ridges/upr slopes...West winds 3 to 4 mph.
* Mixing height.........400-1000 ft AGL.
* Transport winds.......West around 5 mph shifting to the north
after midnight.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...2 percent.
* Freezing level........10000 Feet.
.TUESDAY...
* Sky/weather...........Mostly cloudy then becoming mostly sunny.
Areas of drizzle in the morning. Isolated rain showers in the
afternoon.
* Max temperature.......53-63...except 47-57 ridges.
* Min humidity..........67-82 percent...except 74-89 percent
ridges.
* 20-foot winds.........
* Valleys/lwr slopes..Upslope/upvalley 1 to 2 mph.
* Ridges/upr slopes...Light winds becoming northwest around 3 mph
in the afternoon.
* Mixing height.........1000-2000 ft AGL.
* Transport winds.......Northeast around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...6 percent.
* Freezing level........9000 Feet.
.TUESDAY NIGHT...Mostly clear. Freezing level 10000 feet. Lows 42 to
52 valleys...36 to 46 ridges. Northwest winds around 3 mph shifting
to the northeast around 6 mph after midnight.
.WEDNESDAY...Warmer, sunny. Freezing level 12000 feet. Highs 66 to
76 valleys...59 to 69 ridges. Northeast winds around 6 mph shifting
to the northwest around 3 mph in the afternoon.
.WEDNESDAY NIGHT...Clear. Freezing level 13000 feet. Lows 46 to
56 valleys...41 to 51 ridges. Northwest winds around 3 mph shifting
to the east around 5 mph after midnight.
.THURSDAY...Sunny. Freezing level 13000 feet. Highs 70 to
80 valleys...63 to 73 ridges. East winds around 5 mph shifting to
the west around 3 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Freezing level 13500 feet. Lows
45 to 55. North winds around 3 mph.
.FRIDAY...Sunny. Freezing level 13000 feet. Highs 68 to 78 valleys...
60 to 70 ridges. West winds around 3 mph.
.SATURDAY...Mostly clear. Freezing level 13000 feet. Lows in the
lower 50s valleys...in the upper 40s ridges. Highs 63 to
73 valleys...55 to 65 ridges.
.SUNDAY...Mostly clear. Freezing level 12500 feet. Lows around
50 valleys...in the mid 40s ridges. Highs 64 to 74 valleys...56 to
66 ridges.
.8 to 14 Day Outlook for Sep 21 - 27 2026
Near normal temperatures and above normal precipitation.
$$
WAZ659-142315-
West Slopes of the Central Cascades Generally above 1500 Feet-
258 AM PDT Mon Sep 14 2026
.TODAY...
* Sky/weather...........Partly sunny.
* Max temperature.......56-66...except 44-54 ridges.
* Min humidity..........63-78 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Upslope/upvalley around 2 mph.
* Ridges/upr slopes...West winds 3 to 4 mph.
* Mixing height.........1200-2200 ft AGL.
* Transport winds.......West 5 to 10 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...2 percent.
* Freezing level........11500 Feet.
.TONIGHT...
* Sky/weather...........Mostly cloudy.
* Min temperature.......44-54...except 35-45 ridges.
* Max humidity..........74-89 percent...except 88-100 percent
ridges.
* 20-foot winds.........
* Valleys/lwr slopes..Downslope/downvalley 0 to 1 mph.
* Ridges/upr slopes...West winds up to 3 mph.
* Mixing height.........400-1100 ft AGL.
* Transport winds.......Northwest around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........11500 Feet.
.TUESDAY...
* Sky/weather...........Mostly cloudy. Isolated rain showers in the
afternoon.
* Max temperature.......55-65...except 43-53 ridges.
* Min humidity..........64-79 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Upslope/upvalley 1 to 3 mph.
* Ridges/upr slopes...Light winds becoming northwest around 3 mph
in the afternoon.
* Mixing height.........1000-2000 ft AGL.
* Transport winds.......North around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...6 percent.
* Freezing level........9500 Feet.
.TUESDAY NIGHT...Partly cloudy. Freezing level 9500 feet. Lows 43 to
53 valleys...in the lower 40s ridges. North winds around 3 mph
shifting to the east around 5 mph after midnight.
.WEDNESDAY...Warmer, sunny. Freezing level 11500 feet. Highs 66 to
76 valleys...58 to 68 ridges. East winds around 5 mph shifting to
the north around 3 mph in the afternoon.
.WEDNESDAY NIGHT...Clear. Freezing level 13000 feet. Lows 47 to
57 valleys...42 to 52 ridges. Light winds becoming east around 5 mph
after midnight.
.THURSDAY...Sunny. Freezing level 13000 feet. Highs 70 to
80 valleys...63 to 73 ridges. East winds around 5 mph shifting to
the northwest around 3 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Freezing level 13000 feet. Lows
46 to 56. East winds around 3 mph.
.FRIDAY...Sunny. Freezing level 13000 feet. Highs 68 to 78 valleys...
59 to 69 ridges. West winds around 3 mph.
.SATURDAY...Mostly clear. Freezing level 13500 feet. Lows 48 to
58 valleys...in the upper 40s ridges. Highs 63 to 73 valleys...55 to
65 ridges.
.SUNDAY...Mostly clear. Freezing level 13000 feet. Lows 46 to
56 valleys...in the mid 40s ridges. Highs 64 to 74 valleys...57 to
67 ridges.
.8 to 14 Day Outlook for Sep 21 - 27 2026
Near normal temperatures and above normal precipitation.
$$
www.weather.gov/seattle