Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Seattle/Tacoma, WA
Issued by NWS Seattle/Tacoma, WA
631
FNUS56 KSEW 182207
FWFSEW
Fire Weather Planning Forecast for Western Washington
National Weather Service Seattle WA
307 PM PDT Fri Sep 18 2026
.DISCUSSION...Onshore flow will continue to bring cooler temperatures
and increased cloud cover to western Washington through the weekend
and into early next week. Increasing chances of rain midweek as weak
systems look to cross into western Washington, which may provide
more wetter conditions later into the week.
Forecast for 20 foot wind speed (valleys and ridge tops) are 10
minute averages reflecting RAWS winds.
WAZ649-191245-
North and Central Coastal Strip-
307 PM PDT Fri Sep 18 2026
.TONIGHT...
* Sky/weather...........Mostly cloudy.
* Min temperature.......49-59.
* Max humidity..........91-100 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Southwest winds up to 3 mph.
* Ridges/upr slopes...Southwest winds around 3 mph in the evening
becoming light.
* Mixing height.........800-1100 ft AGL.
* Transport winds.......Southwest around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SATURDAY...
* Sky/weather...........Partly sunny.
* Max temperature.......58-68.
* Min humidity..........70-85 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Light winds becoming west around 4 mph in the
afternoon.
* Ridges/upr slopes...Light winds becoming west around 3 mph in the
afternoon.
* Mixing height.........1000-1800 ft AGL.
* Transport winds.......Southwest around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SATURDAY NIGHT...
* Sky/weather...........Mostly cloudy.
* Min temperature.......47-57.
* Max humidity..........92-100 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Northwest winds 3 to 5 mph.
* Ridges/upr slopes...Northwest winds 3 to 5 mph.
* Mixing height.........600-1000 ft AGL.
* Transport winds.......Northwest 5 to 10 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......59-69.
* Min humidity..........69-84 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Northwest winds 3 to 6 mph.
* Ridges/upr slopes...Northwest winds 3 to 6 mph.
* Mixing height.........700-1700 ft AGL.
* Transport winds.......Northwest 5 to 10 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 50s. Northwest winds
4 to 7 mph.
.MONDAY...Partly sunny. Highs in the mid 60s. Northwest winds 3 to
6 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 50s. Northwest
winds around 7 mph.
.TUESDAY...Partly sunny. Highs in the mid 60s. Northwest winds
around 5 mph.
.TUESDAY NIGHT...Mostly cloudy. Slight chance of rain after
midnight. Lows in the lower 50s. Northwest winds around 4 mph.
.WEDNESDAY...Partly sunny. Highs in the mid 60s. North winds around
3 mph.
.THURSDAY...Mostly cloudy. Slight chance of rain. Lows in the lower
50s. Highs in the mid 60s.
.FRIDAY...Mostly cloudy. Chance of rain. Lows in the lower 50s.
Highs in the lower 60s.
.8 to 14 Day Outlook for Sep 26 - Oct 02, 2026
Near normal temperatures and above normal precipitation.
$$
WAZ650-191245-
North Coastal Lowlands-
307 PM PDT Fri Sep 18 2026
.TONIGHT...
* Sky/weather...........Mostly cloudy.
* Min temperature.......48-58.
* Max humidity..........85-100 percent...except 88-100 percent
ridges.
* 20-foot winds.........
* Valleys/lwr slopes..Southwest winds up to 3 mph.
* Ridges/upr slopes...Southwest winds up to 3 mph.
* Mixing height.........600-1000 ft AGL.
* Transport winds.......Southwest around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SATURDAY...
* Sky/weather...........Mostly cloudy then becoming mostly sunny.
* Max temperature.......61-71.
* Min humidity..........65-80 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Light winds becoming west around 3 mph in the
afternoon.
* Ridges/upr slopes...Light winds becoming southwest around 3 mph
in the afternoon.
* Mixing height.........800-1800 ft AGL.
* Transport winds.......Southwest around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SATURDAY NIGHT...
* Sky/weather...........Partly cloudy.
* Min temperature.......46-56.
* Max humidity..........81-96 percent...except 86-100 percent
ridges.
* 20-foot winds.........
* Valleys/lwr slopes..Northwest winds up to 3 mph.
* Ridges/upr slopes...West winds around 3 mph in the evening
becoming light.
* Mixing height.........400-800 ft AGL.
* Transport winds.......Northwest around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......62-72.
* Min humidity..........58-73 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Light winds becoming northwest around 4 mph
in the afternoon.
* Ridges/upr slopes...Light winds becoming northwest around 4 mph
in the afternoon.
* Mixing height.........700-1700 ft AGL.
* Transport winds.......Northwest around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY NIGHT...Partly cloudy. Lows in the lower 50s. Northwest
winds around 3 mph in the evening becoming light.
.MONDAY...Partly sunny. Highs 63 to 73. Light winds becoming west
around 5 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 50s. Northwest
winds around 4 mph.
.TUESDAY...Partly sunny. Highs 60 to 70. Northwest winds around
3 mph.
.TUESDAY NIGHT...Partly cloudy. Slight chance of rain after
midnight. Lows in the lower 50s. Light winds.
.WEDNESDAY...Partly sunny. Highs 60 to 70. Light winds.
.THURSDAY...Mostly cloudy. Slight chance of rain. Lows in the lower
50s. Highs 61 to 71.
.FRIDAY...Mostly cloudy. Chance of rain. Lows in the lower 50s.
Highs 58 to 68.
.8 to 14 Day Outlook for Sep 26 - Oct 02, 2026
Near normal temperatures and above normal precipitation.
$$
WAZ651-191245-
Central Coastal Lowlands-
307 PM PDT Fri Sep 18 2026
.TONIGHT...
* Sky/weather...........Partly cloudy then becoming mostly cloudy.
* Min temperature.......44-54.
* Max humidity..........89-100 percent.
* 20-foot winds.........
* Valleys/lwr slopes..West winds up to 3 mph.
* Ridges/upr slopes...West winds up to 3 mph.
* Mixing height.........500-1100 ft AGL.
* Transport winds.......West around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SATURDAY...
* Sky/weather...........Partly sunny.
* Max temperature.......63-73.
* Min humidity..........60-75 percent.
* 20-foot winds.........
* Valleys/lwr slopes..West winds up to 3 mph.
* Ridges/upr slopes...West winds up to 3 mph.
* Mixing height.........900-1900 ft AGL.
* Transport winds.......Light winds becoming west around 5 mph in
the afternoon.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SATURDAY NIGHT...
* Sky/weather...........Partly cloudy.
* Min temperature.......44-54.
* Max humidity..........85-100 percent.
* 20-foot winds.........
* Valleys/lwr slopes..West winds around 3 mph in the evening
becoming light.
* Ridges/upr slopes...Northwest winds up to 3 mph.
* Mixing height.........400-900 ft AGL.
* Transport winds.......Northwest around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......66-76...except 63-73 ridges.
* Min humidity..........57-72 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Light winds becoming west around 3 mph in the
afternoon.
* Ridges/upr slopes...Light winds.
* Mixing height.........700-1700 ft AGL.
* Transport winds.......Light winds becoming northwest around 5 mph
in the afternoon.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY NIGHT...Mostly clear. Lows around 50. West winds around
3 mph in the evening becoming light.
.MONDAY...Partly sunny. Highs 67 to 77 valleys...in the mid 60s
ridges. Light winds becoming west around 4 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows in the upper 40s. Northwest
winds around 4 mph.
.TUESDAY...Partly sunny. Highs in the upper 60s valleys...in the
lower 60s ridges. Northwest winds around 3 mph.
.TUESDAY NIGHT...Partly cloudy. Lows in the upper 40s. West winds
around 3 mph.
.WEDNESDAY...Partly sunny. Highs in the upper 60s valleys...in the
lower 60s ridges. Light winds.
.THURSDAY...Mostly cloudy. Slight chance of rain. Lows around 50.
Highs in the upper 60s valleys...in the lower 60s ridges.
.FRIDAY...Mostly cloudy. Chance of rain. Lows in the lower 50s.
Highs in the mid 60s valleys...in the upper 50s ridges.
.8 to 14 Day Outlook for Sep 26 - Oct 02, 2026
Near normal temperatures and above normal precipitation.
$$
WAZ652-191245-
West Portion of the Olympic Mountains-
307 PM PDT Fri Sep 18 2026
.TONIGHT...
* Sky/weather...........Partly cloudy then becoming mostly cloudy.
* Min temperature.......43-53.
* Max humidity..........82-97 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Downslope/downvalley 1 to 2 mph.
* Ridges/upr slopes...Light winds.
* Mixing height.........300-800 ft AGL.
* Transport winds.......Southwest around 5 mph shifting to the
southeast after midnight.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........13500 Feet.
.SATURDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......61-71...except 58-68 ridges.
* Min humidity..........53-68 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Upslope/upvalley 1 to 3 mph.
* Ridges/upr slopes...Light winds becoming southwest around 3 mph
in the afternoon.
* Mixing height.........600-1600 ft AGL.
* Transport winds.......Southeast around 5 mph shifting to the
southwest in the afternoon.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........13000 Feet.
.SATURDAY NIGHT...
* Sky/weather...........Partly cloudy.
* Min temperature.......44-54.
* Max humidity..........79-94 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Downslope/downvalley 1 to 2 mph.
* Ridges/upr slopes...Light winds.
* Mixing height.........300-600 ft AGL.
* Transport winds.......Southwest around 5 mph shifting to the east
after midnight.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........13000 Feet.
.SUNDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......63-73...except 60-70 ridges.
* Min humidity..........47-62 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Upslope/upvalley 1 to 3 mph.
* Ridges/upr slopes...Light winds becoming west around 4 mph in the
afternoon.
* Mixing height.........600-1600 ft AGL.
* Transport winds.......East around 5 mph shifting to the west in
the afternoon.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........13000 Feet.
.SUNDAY NIGHT...Mostly clear. Freezing level 13000 feet. Lows around
50. Northwest winds 3 to 4 mph.
.MONDAY...Mostly sunny. Freezing level 12500 feet. Highs 60 to
70 valleys...55 to 65 ridges. North winds around 3 mph shifting to
the west around 5 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Freezing level 12500 feet. Lows 42 to
52. North winds around 3 mph.
.TUESDAY...Mostly sunny. Freezing level 11500 feet. Highs 56 to
66 valleys...51 to 61 ridges. Northwest winds around 4 mph.
.TUESDAY NIGHT...Partly cloudy. Freezing level 10000 feet. Lows
41 to 51. North winds around 3 mph.
.WEDNESDAY...Mostly sunny. Freezing level 9000 feet. Highs 52 to 62.
Light winds.
.THURSDAY...Mostly cloudy. Slight chance of rain. Freezing level
9500 feet. Lows 44 to 54. Highs 57 to 67 valleys...52 to 62 ridges.
.FRIDAY...Mostly cloudy. Chance of rain. Freezing level 8000 feet.
Lows 43 to 53. Highs 53 to 63 valleys...48 to 58 ridges.
.8 to 14 Day Outlook for Sep 26 - Oct 02, 2026
Near normal temperatures and above normal precipitation.
$$
WAZ661-191245-
East Portion of the Olympic Mountains-
307 PM PDT Fri Sep 18 2026
.TONIGHT...
* Sky/weather...........Partly cloudy.
* Min temperature.......43-53.
* Max humidity..........81-96 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Downslope/downvalley 1 to 2 mph.
* Ridges/upr slopes...Southwest winds 3 to 4 mph.
* Mixing height.........400-800 ft AGL.
* Transport winds.......South around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........13500 Feet.
.SATURDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......63-73...except 57-67 ridges.
* Min humidity..........54-69 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Upslope/upvalley 1 to 3 mph.
* Ridges/upr slopes...Light winds becoming southwest around 3 mph
in the afternoon.
* Mixing height.........600-1600 ft AGL.
* Transport winds.......Southwest around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........13000 Feet.
.SATURDAY NIGHT...
* Sky/weather...........Partly cloudy.
* Min temperature.......44-54.
* Max humidity..........77-92 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Downslope/downvalley around 2 mph.
* Ridges/upr slopes...West winds 3 to 4 mph.
* Mixing height.........300-700 ft AGL.
* Transport winds.......Southwest around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........13000 Feet.
.SUNDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......64-74...except 59-69 ridges.
* Min humidity..........45-60 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.........700-1700 ft AGL.
* Transport winds.......Southwest around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........13000 Feet.
.SUNDAY NIGHT...Mostly clear. Freezing level 13000 feet. Lows 45 to
55. West winds around 3 mph in the evening becoming light.
.MONDAY...Mostly sunny. Freezing level 12500 feet. Highs 61 to
71 valleys...54 to 64 ridges. Light winds becoming west around 4 mph
in the afternoon.
.MONDAY NIGHT...Partly cloudy. Freezing level 12500 feet. Lows 44 to
54 valleys...39 to 49 ridges. West winds around 3 mph.
.TUESDAY...Mostly sunny. Freezing level 11500 feet. Highs 57 to
67 valleys...49 to 59 ridges. West winds around 3 mph.
.TUESDAY NIGHT...Partly cloudy. Freezing level 10000 feet. Lows
40 to 50. West winds around 3 mph.
.WEDNESDAY...Mostly sunny. Freezing level 9000 feet. Highs 55 to
65 valleys...47 to 57 ridges. South winds around 3 mph.
.THURSDAY...Mostly cloudy. Slight chance of rain. Freezing level
10000 feet. Lows in the upper 40s valleys...in the mid 40s ridges.
Highs 58 to 68 valleys...49 to 59 ridges.
.FRIDAY...Mostly cloudy. Chance of rain. Freezing level 8000 feet.
Lows 42 to 52. Highs 54 to 64 valleys...45 to 55 ridges.
.8 to 14 Day Outlook for Sep 26 - Oct 02, 2026
Near normal temperatures and above normal precipitation.
$$
WAZ653-191245-
Strait of Juan De Fuca and Northwest Interior Lowlands-
307 PM PDT Fri Sep 18 2026
.TONIGHT...
* Sky/weather...........Partly cloudy then becoming mostly cloudy.
* Min temperature.......46-56.
* Max humidity..........82-97 percent.
* 20-foot winds.........Southwest winds 3 to 4 mph.
* Mixing height.........400-500 ft AGL.
* Transport winds.......Southwest around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SATURDAY...
* Sky/weather...........Mostly cloudy then becoming mostly sunny.
* Max temperature.......62-72.
* Min humidity..........66-81 percent.
* 20-foot winds.........Light winds becoming west around 3 mph in
the afternoon.
* Mixing height.........500-1000 ft AGL.
* Transport winds.......Southwest around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SATURDAY NIGHT...
* Sky/weather...........Partly cloudy.
* Min temperature.......44-54.
* Max humidity..........80-95 percent.
* 20-foot winds.........West winds around 3 mph in the evening
becoming light.
* Mixing height.........400-500 ft AGL.
* Transport winds.......West around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......63-73.
* Min humidity..........60-75 percent.
* 20-foot winds.........Light winds becoming northwest around 4 mph
in the afternoon.
* Mixing height.........400-1200 ft AGL.
* Transport winds.......West around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. West winds 3 to
5 mph.
.MONDAY...Mostly sunny. Highs 64 to 74. Southwest winds 3 to 6 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 50s. West winds
around 4 mph.
.TUESDAY...Partly sunny. Highs 61 to 71. West winds around 4 mph.
.TUESDAY NIGHT...Partly cloudy. Lows in the lower 50s. Southwest
winds around 4 mph.
.WEDNESDAY...Partly sunny. Highs 60 to 70. Southwest winds around
3 mph.
.THURSDAY...Mostly cloudy. Slight chance of rain. Lows in the lower
50s. Highs 62 to 72.
.FRIDAY...Mostly cloudy. Chance of rain. Lows in the lower 50s.
Highs 60 to 70.
.8 to 14 Day Outlook for Sep 26 - Oct 02, 2026
Near normal temperatures and above normal precipitation.
$$
WAZ654-191245-
Central and South Puget Sound Lowlands-
307 PM PDT Fri Sep 18 2026
.TONIGHT...
* Sky/weather...........Mostly clear then becoming 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.........400-1100 ft AGL.
* Transport winds.......Southwest around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SATURDAY...
* Sky/weather...........Partly sunny.
* Max temperature.......65-75.
* Min humidity..........58-73 percent.
* 20-foot winds.........Southwest winds up to 3 mph.
* Mixing height.........800-1800 ft AGL.
* Transport winds.......Southwest around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SATURDAY NIGHT...
* Sky/weather...........Partly cloudy.
* Min temperature.......46-56.
* Max humidity..........80-95 percent.
* 20-foot winds.........North winds around 3 mph in the evening
becoming light.
* Mixing height.........400-900 ft AGL.
* Transport winds.......North around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......65-75.
* Min humidity..........57-72 percent.
* 20-foot winds.........Light winds becoming northeast around 3 mph
in the afternoon.
* Mixing height.........700-1700 ft AGL.
* Transport winds.......North around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY NIGHT...Mostly clear. Lows 47 to 57. North winds around
4 mph in the evening becoming light.
.MONDAY...Mostly sunny. Highs in the lower 70s. Light winds becoming
south around 3 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 50s. Light winds.
.TUESDAY...Partly sunny. Highs 64 to 74. Light winds.
.TUESDAY NIGHT...Partly cloudy. Lows 46 to 56. Light winds.
.WEDNESDAY...Partly sunny. Highs 63 to 73. Light winds.
.THURSDAY...Mostly cloudy. Lows in the lower 50s. Highs 64 to 74.
.FRIDAY...Mostly cloudy. Chance of rain. Lows in the lower 50s.
Highs in the mid 60s.
.8 to 14 Day Outlook for Sep 26 - Oct 02, 2026
Near normal temperatures and above normal precipitation.
$$
WAZ655-191245-
Black Hills and Southwest Interior Lowlands-
307 PM PDT Fri Sep 18 2026
.TONIGHT...
* Sky/weather...........Partly cloudy then becoming mostly cloudy.
* Min temperature.......45-55.
* Max humidity..........85-100 percent.
* 20-foot winds.........West winds up to 3 mph.
* Mixing height.........400-1200 ft AGL.
* Transport winds.......West around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SATURDAY...
* Sky/weather...........Partly sunny.
* Max temperature.......67-77.
* Min humidity..........48-63 percent.
* 20-foot winds.........West winds up to 3 mph.
* Mixing height.........800-1800 ft AGL.
* Transport winds.......West around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SATURDAY NIGHT...
* Sky/weather...........Partly cloudy.
* Min temperature.......46-56.
* Max humidity..........77-92 percent.
* 20-foot winds.........Northwest winds up to 3 mph.
* Mixing height.........400-900 ft AGL.
* Transport winds.......Northwest around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY...
* Sky/weather...........Partly sunny then becoming sunny.
* Max temperature.......72-82.
* Min humidity..........41-56 percent.
* 20-foot winds.........North winds up to 3 mph.
* Mixing height.........600-1600 ft AGL.
* Transport winds.......North around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY NIGHT...Mostly clear. Lows 46 to 56. Northwest winds up to
3 mph.
.MONDAY...Partly sunny. Highs in the mid 70s. Light winds becoming
west around 3 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows around 50. Light winds.
.TUESDAY...Partly sunny. Highs around 70. Light winds.
.TUESDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light winds.
.WEDNESDAY...Partly sunny. Highs around 70. Light winds.
.THURSDAY...Mostly cloudy. Lows around 50. Highs in the lower 70s.
.FRIDAY...Mostly cloudy. Slight chance of rain. Lows in the lower
50s. Highs in the upper 60s.
.8 to 14 Day Outlook for Sep 26 - Oct 02, 2026
Near normal temperatures and above normal precipitation.
$$
WAZ656-191245-
Northeast Puget Sound Lowlands Generally Below 1500 Feet-
307 PM PDT Fri Sep 18 2026
.TONIGHT...
* Sky/weather...........Mostly clear then becoming mostly cloudy.
* Min temperature.......46-56.
* Max humidity..........80-95 percent.
* 20-foot winds.........Light winds.
* Mixing height.........300-900 ft AGL.
* Transport winds.......Southwest around 5 mph shifting to the
southeast after midnight.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SATURDAY...
* Sky/weather...........Partly sunny.
* Max temperature.......65-75.
* Min humidity..........51-66 percent.
* 20-foot winds.........Light winds.
* Mixing height.........700-1700 ft AGL.
* Transport winds.......Southeast around 5 mph shifting to the west
in the afternoon.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SATURDAY NIGHT...
* Sky/weather...........Partly cloudy.
* Min temperature.......47-57.
* Max humidity..........76-91 percent.
* 20-foot winds.........Light winds.
* Mixing height.........300-700 ft AGL.
* Transport winds.......West around 5 mph shifting to the east
after midnight.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......68-78.
* Min humidity..........46-61 percent.
* 20-foot winds.........Light winds becoming west around 3 mph in
the afternoon.
* Mixing height.........500-1500 ft AGL.
* Transport winds.......East around 5 mph shifting to the west in
the afternoon.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. Light winds.
.MONDAY...Mostly sunny. Highs 67 to 77. Light winds becoming west
around 3 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 50s. Light winds.
.TUESDAY...Partly sunny. Highs 64 to 74. Light winds.
.TUESDAY NIGHT...Partly cloudy. Lows around 50. Light winds.
.WEDNESDAY...Partly sunny. Highs 63 to 73. Light winds.
.THURSDAY...Mostly cloudy. Lows in the lower 50s. Highs 66 to 76.
.FRIDAY...Mostly cloudy. Chance of rain. Lows in the lower 50s.
Highs 62 to 72.
.8 to 14 Day Outlook for Sep 26 - Oct 02, 2026
Near normal temperatures and above normal precipitation.
$$
WAZ657-191245-
Southeast Puget Sound Lowlands Generally Below 1500 Feet-
307 PM PDT Fri Sep 18 2026
.TONIGHT...
* Sky/weather...........Partly cloudy then becoming mostly cloudy.
* Min temperature.......46-56.
* Max humidity..........80-95 percent.
* 20-foot winds.........Light winds.
* Mixing height.........400-1200 ft AGL.
* Transport winds.......Southwest around 5 mph shifting to the
south after midnight.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SATURDAY...
* Sky/weather...........Partly sunny.
* Max temperature.......67-77.
* Min humidity..........53-68 percent.
* 20-foot winds.........Light winds.
* Mixing height.........800-1800 ft AGL.
* Transport winds.......Light winds becoming west around 5 mph in
the afternoon.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SATURDAY NIGHT...
* Sky/weather...........Partly cloudy.
* Min temperature.......47-57.
* Max humidity..........77-92 percent.
* 20-foot winds.........Light winds.
* Mixing height.........300-800 ft AGL.
* Transport winds.......North around 5 mph.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY...
* Sky/weather...........Partly sunny then becoming sunny.
* Max temperature.......69-79.
* Min humidity..........51-66 percent.
* 20-foot winds.........Light winds.
* Mixing height.........600-1600 ft AGL.
* Transport winds.......Northeast around 5 mph shifting to the
northwest in the afternoon.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. North winds up
to 3 mph.
.MONDAY...Mostly sunny. Highs in the lower 70s. Light winds.
.MONDAY NIGHT...Partly cloudy. Lows 47 to 57. Light winds.
.TUESDAY...Partly sunny. Highs in the upper 60s. Light winds.
.TUESDAY NIGHT...Partly cloudy. Lows 45 to 55. Light winds.
.WEDNESDAY...Partly sunny. Highs in the upper 60s. Light winds.
.THURSDAY...Mostly cloudy. Lows in the lower 50s. Highs in the lower
70s.
.FRIDAY...Mostly cloudy. Chance of rain. Lows in the lower 50s.
Highs in the mid 60s.
.8 to 14 Day Outlook for Sep 26 - Oct 02, 2026
Near normal temperatures and above normal precipitation.
$$
WAZ658-191245-
West Slopes of the North Cascades Generally above 1500 Feet-
307 PM PDT Fri Sep 18 2026
.TONIGHT...
* Sky/weather...........Partly cloudy.
* Min temperature.......46-56...except 40-50 ridges.
* Max humidity..........77-92 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Downslope/downvalley around 2 mph.
* Ridges/upr slopes...West winds around 3 mph shifting to the east
after midnight.
* Mixing height.........300-900 ft AGL.
* Transport winds.......West around 5 mph shifting to the east
after midnight.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........13000 Feet.
.SATURDAY...
* Sky/weather...........Partly sunny.
* Max temperature.......65-75...except 61-71 ridges.
* Min humidity..........46-61 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.........900-1900 ft AGL.
* Transport winds.......Southeast around 5 mph shifting to the
southwest in the afternoon.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........13000 Feet.
.SATURDAY NIGHT...
* Sky/weather...........Partly cloudy.
* Min temperature.......46-56...except 42-52 ridges.
* Max humidity..........71-86 percent...except 65-80 percent
ridges.
* 20-foot winds.........
* Valleys/lwr slopes..Downslope/downvalley 2 to 3 mph.
* Ridges/upr slopes...South winds around 3 mph shifting to the east
around 5 mph after midnight.
* Mixing height.........200-700 ft AGL.
* Transport winds.......Southwest around 5 mph shifting to the
southeast after midnight.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........13000 Feet.
.SUNDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......68-78...except 64-74 ridges.
* Min humidity..........39-54 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Upslope/upvalley around 3 mph.
* Ridges/upr slopes...East winds around 5 mph shifting to the west
around 4 mph in the afternoon.
* Mixing height.........300 ft AGL increasing to 2800 ft AGL in the
afternoon.
* Transport winds.......Southeast around 5 mph shifting to the
southwest in the afternoon.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........13000 Feet.
.SUNDAY NIGHT...Mostly clear. Freezing level 13000 feet. Lows 44 to
54. West winds around 3 mph shifting to the east around 4 mph after
midnight.
.MONDAY...Sunny. Freezing level 12500 feet. Highs 64 to 74 valleys...
56 to 66 ridges. Light winds becoming west around 5 mph in the
afternoon.
.MONDAY NIGHT...Partly cloudy. Freezing level 12500 feet. Lows in
the upper 40s valleys...in the lower 40s ridges. West winds around
4 mph.
.TUESDAY...Mostly sunny. Freezing level 11500 feet. Highs 59 to
69 valleys...52 to 62 ridges. Southwest winds around 4 mph.
.TUESDAY NIGHT...Partly cloudy. Freezing level 10500 feet. Lows
42 to 52 valleys...in the lower 40s ridges. Southwest winds around
4 mph.
.WEDNESDAY...Mostly sunny. Freezing level 9500 feet. Highs 58 to
68 valleys...50 to 60 ridges. Southwest winds around 3 mph.
.THURSDAY...Mostly cloudy. Slight chance of rain. Freezing level
10000 feet. Lows in the upper 40s valleys...39 to 49 ridges. Highs
61 to 71 valleys...54 to 64 ridges.
.FRIDAY...Mostly cloudy. Chance of rain. Freezing level 9000 feet.
Lows around 50 valleys...in the mid 40s ridges. Highs 56 to
66 valleys...48 to 58 ridges.
.8 to 14 Day Outlook for Sep 26 - Oct 02, 2026
Near normal temperatures and above normal precipitation.
$$
WAZ659-191245-
West Slopes of the Central Cascades Generally above 1500 Feet-
307 PM PDT Fri Sep 18 2026
.TONIGHT...
* Sky/weather...........Partly cloudy.
* Min temperature.......45-55...except 41-51 ridges.
* Max humidity..........70-85 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Downslope/downvalley around 2 mph.
* Ridges/upr slopes...Light winds.
* Mixing height.........300-900 ft AGL.
* Transport winds.......Northwest around 5 mph shifting to the east
after midnight.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........13000 Feet.
.SATURDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......67-77...except 60-70 ridges.
* Min humidity..........47-62 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Upslope/upvalley 0 to 3 mph.
* Ridges/upr slopes...Light winds becoming west around 3 mph in the
afternoon.
* Mixing height.........700-1700 ft AGL.
* Transport winds.......East around 5 mph shifting to the west in
the afternoon.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........13500 Feet.
.SATURDAY NIGHT...
* Sky/weather...........Partly cloudy.
* Min temperature.......48-58...except 44-54 ridges.
* Max humidity..........64-79 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Downslope/downvalley 1 to 3 mph.
* Ridges/upr slopes...Light winds becoming east around 4 mph after
midnight.
* Mixing height.........200-600 ft AGL.
* Transport winds.......Northeast around 5 mph shifting to the east
after midnight.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........13500 Feet.
.SUNDAY...
* Sky/weather...........Mostly sunny.
* Max temperature.......70-80...except 63-73 ridges.
* Min humidity..........40-55 percent.
* 20-foot winds.........
* Valleys/lwr slopes..Upslope/upvalley 2 to 3 mph.
* Ridges/upr slopes...East winds around 3 mph shifting to the west
in the afternoon.
* Mixing height.........300 ft AGL increasing to 2500 ft AGL in the
afternoon.
* Transport winds.......East around 5 mph shifting to the west in
the afternoon.
* CWR (>0.25)...........0 percent.
* Chance of Lightning...0 percent.
* Freezing level........13500 Feet.
.SUNDAY NIGHT...Mostly clear. Freezing level 13000 feet. Lows 46 to
56. Light winds becoming east around 3 mph after midnight.
.MONDAY...Mostly sunny. Freezing level 12500 feet. Highs 64 to
74 valleys...57 to 67 ridges. Light winds becoming west around 4 mph
in the afternoon.
.MONDAY NIGHT...Partly cloudy. Freezing level 13000 feet. Lows 45 to
55 valleys...in the mid 40s ridges. Light winds.
.TUESDAY...Partly sunny. Freezing level 12500 feet. Highs 59 to
69 valleys...51 to 61 ridges. Northwest winds around 3 mph.
.TUESDAY NIGHT...Partly cloudy. Freezing level 11500 feet. Lows
43 to 53 valleys...in the lower 40s ridges. Light winds.
.WEDNESDAY...Mostly sunny. Freezing level 11000 feet. Highs 59 to
69 valleys...51 to 61 ridges. Light winds.
.THURSDAY...Partly cloudy. Freezing level 11500 feet. Lows 45 to
55 valleys...in the mid 40s ridges. Highs 63 to 73 valleys...56 to
66 ridges.
.FRIDAY...Mostly cloudy. Chance of rain. Freezing level 9000 feet.
Lows 46 to 56 valleys...in the mid 40s ridges. Highs 56 to
66 valleys...48 to 58 ridges.
.8 to 14 Day Outlook for Sep 26 - Oct 02, 2026
Near normal temperatures and above normal precipitation.
$$
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