


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Seattle/Tacoma, WA
Issued by NWS Seattle/Tacoma, WA
001 FNUS56 KSEW 012139 FWFSEW Fire Weather Planning Forecast for Western Washington National Weather Service Seattle WA 239 PM PDT Mon Sep 1 2025 ...HEAT ADVISORY IN EFFECT FROM NOON TUESDAY TO 5 PM PDT THURSDAY... .DISCUSSION...Continued warming and drying conditions will continue across Western Washington. Dry and unstable conditions may develop toward midweek with the high pressure solidly overhead. Later in the week, some monsoonal moisture may move into the region to boost the chances for isolated thunderstorms, especially near the Cascades. Forecast for 20 foot wind speed (valleys and ridge tops) are 10 minute averages reflecting RAWS winds. WAZ649-021115- North and Central Coastal Strip- 239 PM PDT Mon Sep 1 2025 .Tonight... * Sky/weather...........Partly cloudy then becoming mostly cloudy. Patchy fog after midnight. * Min temperature.......Around 55. * Max humidity..........92-100 percent. * 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.........400-700 ft AGL. * Transport winds.......Northwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY... * Sky/weather...........Mostly sunny. Patchy dense fog in the morning. * Max temperature.......64-74. * Min humidity..........73-88 percent. * 20-foot winds......... * Valleys/lwr slopes..Light winds becoming northwest around 6 mph in the afternoon. * Ridges/upr slopes...Light winds becoming northwest around 5 mph in the afternoon. * Mixing height.........600-1000 ft AGL. * Transport winds.......North 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......52-62. * Max humidity..........88-100 percent. * 20-foot winds......... * Valleys/lwr slopes..Northwest winds 3 to 6 mph. * Ridges/upr slopes...Northwest winds 3 to 6 mph. * Mixing height.........400-500 ft AGL. * Transport winds.......Northwest 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .WEDNESDAY... * Sky/weather...........Partly sunny. * Max temperature.......63-73. * Min humidity..........76-91 percent. * 20-foot winds......... * Valleys/lwr slopes..Northwest winds 3 to 6 mph. * Ridges/upr slopes...Northwest winds 3 to 6 mph. * Mixing height.........400-1000 ft AGL. * Transport winds.......Northwest 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. .WEDNESDAY NIGHT...Mostly cloudy. Lows in the upper 50s. Northwest winds 5 to 8 mph. .THURSDAY...Mostly cloudy. Highs 64 to 74. Northwest winds 3 to 6 mph. .THURSDAY NIGHT...Mostly cloudy. Lows in the upper 50s. West winds around 3 mph. .FRIDAY...Mostly cloudy. Highs 63 to 73. Southwest winds around 3 mph. .FRIDAY NIGHT...Mostly cloudy. Lows in the upper 50s. West winds around 3 mph. .SATURDAY...Mostly cloudy. Highs in the upper 60s. Southwest winds around 3 mph. .SUNDAY...Mostly cloudy. Lows in the mid 50s. Highs 63 to 73. .MONDAY...Mostly cloudy with slight chance of rain. Lows in the mid 50s. Highs in the upper 60s. .8 TO 14 day Outlook for Sep 09 - 15 2025 Above normal temperatures and above normal precipitation. $$ WAZ650-021115- North Coastal Lowlands- 239 PM PDT Mon Sep 1 2025 .Tonight... * Sky/weather...........Partly cloudy then becoming mostly cloudy. Patchy fog after midnight. * Min temperature.......52-62. * Max humidity..........79-94 percent...except 86-95 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.........500-1100 ft AGL. * Transport winds.......Northwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY... * Sky/weather...........Mostly sunny. Patchy dense fog in the morning. * Max temperature.......69-79. * Min humidity..........62-77 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.........700-1500 ft AGL. * Transport winds.......Northwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY NIGHT... * Sky/weather...........Partly cloudy. Haze after midnight. * Min temperature.......56-66. * Max humidity..........68-83 percent...except 74-89 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Northwest winds around 3 mph in the evening becoming light. * Ridges/upr slopes...Northwest winds around 3 mph in the evening becoming light. * Mixing height.........500-800 ft AGL. * Transport winds.......Northwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .WEDNESDAY... * Sky/weather...........Mostly sunny. * Max temperature.......72-82. * 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 5 mph in the afternoon. * Mixing height.........500-1400 ft AGL. * Transport winds.......Northwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .WEDNESDAY NIGHT...Mostly cloudy. Lows 56 to 66. Northwest winds 3 to 5 mph. .THURSDAY...Partly sunny. Highs 72 to 82. Light winds becoming west around 4 mph in the afternoon. .THURSDAY NIGHT...Mostly cloudy. Lows 54 to 64. Light winds. .FRIDAY...Partly sunny. Highs 69 to 79. Light winds. .FRIDAY NIGHT...Mostly cloudy. Lows 53 to 63. Light winds. .SATURDAY...Partly sunny. Highs 67 to 77. Light winds. .SUNDAY...Mostly cloudy. Lows in the upper 50s. Highs 66 to 76. .MONDAY...Mostly cloudy with slight chance of rain. Lows in the mid 50s. Highs 65 to 75. .8 TO 14 day Outlook for Sep 09 - 15 2025 Above normal temperatures and above normal precipitation. $$ WAZ651-021115- Central Coastal Lowlands- 239 PM PDT Mon Sep 1 2025 .Tonight... * Sky/weather...........Partly cloudy then becoming mostly cloudy. Patchy fog after midnight. * Min temperature.......51-61. * Max humidity..........82-97 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...0 percent. .TUESDAY... * Sky/weather...........Mostly sunny. Patchy fog in the morning. * Max temperature.......76-86...except 73-83 ridges. * Min humidity..........58-73 percent. * 20-foot winds......... * Valleys/lwr slopes..Light winds becoming northwest around 3 mph in the afternoon. * Ridges/upr slopes...Northwest winds up to 3 mph. * Mixing height.........800-1800 ft AGL. * Transport winds.......Northeast around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......56-66. * Max humidity..........74-89 percent. * 20-foot winds......... * Valleys/lwr slopes..West winds around 3 mph in the evening becoming light. * Ridges/upr slopes...Northwest winds around 3 mph in the evening becoming light. * Mixing height.........300-800 ft AGL. * Transport winds.......Northwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .WEDNESDAY... * Sky/weather...........Partly sunny. * Max temperature.......76-86...except 73-83 ridges. * Min humidity..........64-79 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 4 mph in the afternoon. * Mixing height.........500-1500 ft AGL. * Transport winds.......West around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. .WEDNESDAY NIGHT...Mostly cloudy. Lows 54 to 64. West winds 3 to 6 mph. .THURSDAY...Partly sunny. Highs 72 to 82. Light winds becoming west around 4 mph in the afternoon. .THURSDAY NIGHT...Mostly cloudy. Lows in the upper 50s. Light winds. .FRIDAY...Mostly cloudy. Highs 70 to 80. Light winds. .FRIDAY NIGHT...Mostly cloudy. Lows in the upper 50s. Light winds. .SATURDAY...Mostly cloudy. Highs 69 to 79. Light winds. .SUNDAY...Mostly cloudy. Lows in the mid 50s. Highs 67 to 77 valleys...62 to 72 ridges. .MONDAY...Mostly cloudy with slight chance of rain. Lows in the mid 50s. Highs 66 to 76 valleys...61 to 71 ridges. .8 TO 14 day Outlook for Sep 09 - 15 2025 Above normal temperatures and above normal precipitation. $$ WAZ652-021115- West Portion of the Olympic Mountains- 239 PM PDT Mon Sep 1 2025 .Tonight... * Sky/weather...........Partly cloudy. Areas of smoke in the evening. Haze through the night. * Min temperature.......51-61. * Max humidity..........72-87 percent. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley around 2 mph. * Ridges/upr slopes...Light winds. * Mixing height.........300-700 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........13500 Feet. .TUESDAY... * Sky/weather...........Mostly sunny. Haze through the day. * Max temperature.......73-83...except 70-80 ridges. * Min humidity..........51-66 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 2 to 3 mph. * Ridges/upr slopes...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 south in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........15000 Feet. .TUESDAY NIGHT... * Sky/weather...........Mostly clear. Areas of smoke in the evening. Haze through the night. * Min temperature.......57-67. * Max humidity..........60-75 percent. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley 2 to 3 mph. * Ridges/upr slopes...Light winds becoming east around 3 mph after midnight. * Mixing height.........300-600 ft AGL. * Transport winds.......East around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........15000 Feet. .WEDNESDAY... * Sky/weather...........Mostly sunny. * Max temperature.......76-86...except 73-83 ridges. * Min humidity..........50-65 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley around 3 mph. * Ridges/upr slopes...Northeast winds around 3 mph shifting to the west around 4 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...1 percent. * Freezing level........14500 Feet. .WEDNESDAY NIGHT...Partly cloudy. Freezing level 14500 feet. Lows in the mid 60s. Northwest winds around 3 mph shifting to the northeast after midnight. .THURSDAY...Mostly sunny. Freezing level 14000 feet. Highs 71 to 81. Southeast winds around 3 mph shifting to the southwest around 4 mph in the afternoon. .THURSDAY NIGHT...Partly cloudy. Freezing level 14500 feet. Lows in the lower 60s. Light winds. .FRIDAY...Mostly sunny. Freezing level 13500 feet. Highs 68 to 78. Light winds. .FRIDAY NIGHT...Partly cloudy. Freezing level 13500 feet. Lows in the upper 50s. Light winds. .SATURDAY...Partly sunny. Freezing level 13500 feet. Highs 65 to 75. Light winds. .SUNDAY...Mostly cloudy. Freezing level 13000 feet. Lows in the upper 50s. Highs 62 to 72. .MONDAY...Mostly cloudy. Slight chance of rain. Freezing level 12500 feet. Lows in the mid 50s. Highs 60 to 70. .8 TO 14 day Outlook for Sep 09 - 15 2025 Above normal temperatures and above normal precipitation. $$ WAZ661-021115- East Portion of the Olympic Mountains- 239 PM PDT Mon Sep 1 2025 .Tonight... * Sky/weather...........Partly cloudy. Haze through the night. * Min temperature.......50-60. * Max humidity..........73-88 percent...except 65-80 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley around 2 mph. * Ridges/upr slopes...Southeast winds around 3 mph. * Mixing height.........400-700 ft AGL. * Transport winds.......Southeast around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........14000 Feet. .TUESDAY... * Sky/weather...........Mostly sunny. Haze through the day. Areas of smoke in the afternoon. * Max temperature.......76-86...except 70-80 ridges. * Min humidity..........45-60 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 2 to 3 mph. * Ridges/upr slopes...Light winds becoming east around 3 mph in the afternoon. * Mixing height.........600-1600 ft AGL. * Transport winds.......East around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........15000 Feet. .TUESDAY NIGHT... * Sky/weather...........Mostly clear. Areas of smoke in the evening. Haze through the night. * Min temperature.......57-67. * Max humidity..........59-74 percent...except 46-61 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley 2 to 3 mph. * Ridges/upr slopes...Light winds becoming west around 5 mph after midnight. * Mixing height.........400-800 ft AGL. * Transport winds.......South around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........15500 Feet. .WEDNESDAY... * Sky/weather...........Mostly sunny. * Max temperature.......78-88...except 72-82 ridges. * Min humidity..........45-60 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley around 3 mph. * Ridges/upr slopes...Northwest winds 3 to 6 mph. * Mixing height.........700-1700 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. * Freezing level........14500 Feet. .WEDNESDAY NIGHT...Partly cloudy. Freezing level 14500 feet. Lows 59 to 69. West winds 3 to 5 mph. .THURSDAY...Sunny. Freezing level 14500 feet. Highs 74 to 84 valleys...69 to 79 ridges. Southwest winds 3 to 5 mph. .THURSDAY NIGHT...Partly cloudy. Freezing level 14500 feet. Lows 56 to 66. Light winds. .FRIDAY...Mostly sunny. Freezing level 14000 feet. Highs 71 to 81 valleys...65 to 75 ridges. Light winds. .FRIDAY NIGHT...Partly cloudy. Freezing level 13500 feet. Lows in the upper 50s. Light winds. .SATURDAY...Partly sunny. Freezing level 13500 feet. Highs 68 to 78 valleys...61 to 71 ridges. Light winds. .SUNDAY...Mostly cloudy. Freezing level 13000 feet. Lows 52 to 62. Highs 65 to 75 valleys...58 to 68 ridges. .MONDAY...Mostly cloudy. Slight chance of rain. Freezing level 12500 feet. Lows 50 to 60. Highs 63 to 73 valleys...56 to 66 ridges. .8 TO 14 day Outlook for Sep 09 - 15 2025 Above normal temperatures and above normal precipitation. $$ WAZ653-021115- Strait of Juan De Fuca and Northwest Interior Lowlands- 239 PM PDT Mon Sep 1 2025 .Tonight... * Sky/weather...........Partly cloudy. Patchy fog after midnight. * Min temperature.......50-60. * Max humidity..........77-92 percent. * 20-foot winds.........West winds around 4 mph in the evening becoming light. * Mixing height.........500-600 ft AGL. * Transport winds.......West around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...2 percent. .TUESDAY... * Sky/weather...........Mostly sunny. Patchy fog in the morning. Haze in the afternoon. * Max temperature.......69-79. * Min humidity..........60-75 percent. * 20-foot winds.........Light winds becoming northwest around 5 mph in the afternoon. * Mixing height.........600-800 ft AGL. * Transport winds.......Northwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY NIGHT... * Sky/weather...........Partly cloudy. Haze. * Min temperature.......55-65. * Max humidity..........67-82 percent. * 20-foot winds.........West winds around 3 mph in the evening becoming light. * Mixing height.........500 ft AGL. * Transport winds.......West around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .WEDNESDAY... * Sky/weather...........Mostly sunny. * Max temperature.......72-82. * Min humidity..........58-73 percent. * 20-foot winds.........Light winds becoming northwest around 5 mph in the afternoon. * Mixing height.........500-900 ft AGL. * Transport winds.......Northwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows 55 to 65. Southwest winds 3 to 5 mph. .THURSDAY...Mostly sunny. Highs 73 to 83. Light winds becoming west around 4 mph in the afternoon. .THURSDAY NIGHT...Partly cloudy. Lows 54 to 64. Light winds. .FRIDAY...Partly sunny. Highs 71 to 81. Light winds. .FRIDAY NIGHT...Partly cloudy. Lows 53 to 63. West winds around 3 mph. .SATURDAY...Partly sunny. Highs 69 to 79. Southwest winds around 3 mph. .SUNDAY...Mostly cloudy. Lows 53 to 63. Highs 68 to 78. .MONDAY...Mostly cloudy with slight chance of rain. Lows 52 to 62. Highs 66 to 76. .8 TO 14 day Outlook for Sep 09 - 15 2025 Above normal temperatures and above normal precipitation. $$ WAZ654-021115- Central and South Puget Sound Lowlands- 239 PM PDT Mon Sep 1 2025 .Tonight... * Sky/weather...........Partly cloudy then becoming mostly cloudy. Patchy fog after midnight. * Min temperature.......51-61. * Max humidity..........76-91 percent. * 20-foot winds.........Northwest winds around 3 mph in the evening becoming light. * Mixing height.........500-1300 ft AGL. * Transport winds.......North around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY... * Sky/weather...........Mostly sunny. Haze in the afternoon. * Max temperature.......72-82. * Min humidity..........56-71 percent. * 20-foot winds.........Light winds becoming northeast around 5 mph in the afternoon. * Mixing height.........800-1800 ft AGL. * Transport winds.......Northeast around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY NIGHT... * Sky/weather...........Mostly clear. Haze through the night. * Min temperature.......56-66. * Max humidity..........67-82 percent. * 20-foot winds.........North winds 3 to 5 mph. * Mixing height.........400-900 ft AGL. * Transport winds.......North around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .WEDNESDAY... * Sky/weather...........Mostly sunny. * Max temperature.......75-85. * Min humidity..........53-68 percent. * 20-foot winds.........Light winds becoming northeast around 5 mph in the afternoon. * Mixing height.........700-1700 ft AGL. * Transport winds.......North 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows 56 to 66. North winds around 4 mph shifting to the west around 3 mph after midnight. .THURSDAY...Mostly sunny. Highs 78 to 88. Light winds becoming west around 4 mph in the afternoon. .THURSDAY NIGHT...Partly cloudy. Lows 56 to 66. West winds around 3 mph. .FRIDAY...Partly sunny. Highs in the upper 70s. Southwest winds around 3 mph. .FRIDAY NIGHT...Partly cloudy. Lows in the upper 50s. Southwest winds around 3 mph. .SATURDAY...Mostly cloudy. Highs in the upper 70s. Southwest winds around 3 mph. .SUNDAY...Mostly cloudy. Lows in the upper 50s. Highs in the mid 70s. .MONDAY...Mostly cloudy with slight chance of rain. Lows in the upper 50s. Highs in the lower 70s. .8 TO 14 day Outlook for Sep 09 - 15 2025 Above normal temperatures and above normal precipitation. $$ WAZ655-021115- Black Hills and Southwest Interior Lowlands- 239 PM PDT Mon Sep 1 2025 ...HEAT ADVISORY IN EFFECT FROM NOON TUESDAY TO 5 PM PDT THURSDAY... .Tonight... * Sky/weather...........Partly cloudy then becoming mostly cloudy. Patchy fog after midnight. * Min temperature.......54-64. * Max humidity..........79-94 percent. * 20-foot winds.........West winds around 3 mph in the evening becoming light. * Mixing height.........600-1500 ft AGL. * Transport winds.......Northwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY... * Sky/weather...........Mostly sunny. Patchy fog in the morning. Haze in the afternoon. * Max temperature.......82-92. * Min humidity..........41-56 percent. * 20-foot winds.........Light winds becoming north around 3 mph in the afternoon. * Mixing height.........1100-2100 ft AGL. * Transport winds.......Northeast around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY NIGHT... * Sky/weather...........Partly cloudy. Haze. * Min temperature.......58-68. * Max humidity..........66-81 percent. * 20-foot winds.........Northwest winds 3 to 4 mph. * Mixing height.........500-1200 ft AGL. * Transport winds.......North around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .WEDNESDAY... * Sky/weather...........Mostly sunny. * Max temperature.......82-92. * Min humidity..........42-57 percent. * 20-foot winds.........Light winds becoming northwest around 3 mph in the afternoon. * Mixing height.........800-1800 ft AGL. * Transport winds.......North around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows 56 to 66. Northwest winds 3 to 5 mph. .THURSDAY...Mostly sunny. Highs 79 to 89. Light winds becoming west around 3 mph in the afternoon. .THURSDAY NIGHT...Partly cloudy. Lows 55 to 65. Light winds. .FRIDAY...Partly sunny. Highs 76 to 86. Light winds. .FRIDAY NIGHT...Mostly cloudy. Lows 54 to 64. Light winds. .SATURDAY...Mostly cloudy. Highs in the upper 70s. Light winds. .SUNDAY...Mostly cloudy. Lows in the upper 50s. Highs in the mid 70s. .MONDAY...Mostly cloudy with slight chance of rain. Lows in the mid 50s. Highs in the mid 70s. .8 TO 14 day Outlook for Sep 09 - 15 2025 Above normal temperatures and above normal precipitation. $$ WAZ656-021115- Northeast Puget Sound Lowlands Generally Below 1500 Feet- 239 PM PDT Mon Sep 1 2025 ...HEAT ADVISORY IN EFFECT FROM NOON TUESDAY TO 5 PM PDT THURSDAY... .Tonight... * Sky/weather...........Partly cloudy. Haze through the night. Patchy fog after midnight. * Min temperature.......56-66. * Max humidity..........78-93 percent. * 20-foot winds.........Light winds. * Mixing height.........900-1400 ft AGL. * Transport winds.......West around 5 mph shifting to the north after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...3 percent. .TUESDAY... * Sky/weather...........Mostly sunny. Patchy fog in the morning. Haze through the day. * Max temperature.......80-90. * Min humidity..........47-62 percent. * 20-foot winds.........Light winds becoming west around 4 mph in the afternoon. * Mixing height.........1000-2000 ft AGL. * Transport winds.......North around 5 mph shifting to the west in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY NIGHT... * Sky/weather...........Mostly clear. Haze. * Min temperature.......60-70. * Max humidity..........68-83 percent. * 20-foot winds.........Light winds becoming northeast around 3 mph after midnight. * Mixing height.........900-1200 ft AGL. * Transport winds.......Northwest around 5 mph shifting to the northeast after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .WEDNESDAY... * Sky/weather...........Sunny. * Max temperature.......82-92. * Min humidity..........45-60 percent. * 20-foot winds.........Light winds becoming west around 4 mph in the afternoon. * Mixing height.........1000-2000 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. .WEDNESDAY NIGHT...Mostly clear. Lows 59 to 69. West winds around 3 mph shifting to the east after midnight. .THURSDAY...Mostly sunny. Highs 80 to 90. Light winds becoming west around 3 mph in the afternoon. .THURSDAY NIGHT...Partly cloudy. Lows 58 to 68. Light winds. .FRIDAY...Mostly sunny. Highs 77 to 87. Light winds. .FRIDAY NIGHT...Partly cloudy. Lows 56 to 66. Light winds. .SATURDAY...Partly sunny. Highs 73 to 83. Light winds. .SUNDAY...Mostly cloudy with slight chance of rain. Lows 55 to 65. Highs 71 to 81. .MONDAY...Mostly cloudy with slight chance of rain. Lows in the upper 50s. Highs 68 to 78. .8 TO 14 day Outlook for Sep 09 - 15 2025 Above normal temperatures and above normal precipitation. $$ WAZ657-021115- Southeast Puget Sound Lowlands Generally Below 1500 Feet- 239 PM PDT Mon Sep 1 2025 ...HEAT ADVISORY IN EFFECT FROM NOON TUESDAY TO 5 PM PDT THURSDAY... .Tonight... * Sky/weather...........Partly cloudy then becoming mostly cloudy. Haze through the night. Patchy fog after midnight. * Min temperature.......53-63. * Max humidity..........81-96 percent. * 20-foot winds.........Northwest winds up to 3 mph. * Mixing height.........500-1500 ft AGL. * Transport winds.......North around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. .TUESDAY... * Sky/weather...........Mostly sunny. Patchy fog in the morning. Haze through the day. * Max temperature.......79-89. * Min humidity..........53-68 percent. * 20-foot winds.........Light winds becoming northwest around 3 mph in the afternoon. * Mixing height.........900-1900 ft AGL. * Transport winds.......North around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TUESDAY NIGHT... * Sky/weather...........Mostly clear. Haze. * Min temperature.......58-68. * Max humidity..........70-85 percent. * 20-foot winds.........Northeast winds 3 to 4 mph. * Mixing height.........400-1000 ft AGL. * Transport winds.......North around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .WEDNESDAY... * Sky/weather...........Mostly sunny. * Max temperature.......81-91. * Min humidity..........50-65 percent. * 20-foot winds.........Light winds becoming northwest around 3 mph in the afternoon. * Mixing height.........800-1800 ft AGL. * Transport winds.......North around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows 57 to 67. North winds around 3 mph in the evening becoming light. .THURSDAY...Mostly sunny. Highs in the mid 80s. Light winds becoming northwest around 3 mph in the afternoon. .THURSDAY NIGHT...Partly cloudy. Lows in the lower 60s. Light winds. .FRIDAY...Partly sunny. Highs in the lower 80s. Light winds. .FRIDAY NIGHT...Mostly cloudy. Lows around 60. Light winds. .SATURDAY...Mostly cloudy. Highs in the upper 70s. Light winds. .SUNDAY...Mostly cloudy with slight chance of showers and thunderstorms. Lows in the upper 50s. Highs in the mid 70s. .MONDAY...Mostly cloudy with slight chance of rain. Lows 53 to 63. Highs in the mid 70s. .8 TO 14 day Outlook for Sep 09 - 15 2025 Above normal temperatures and above normal precipitation. $$ WAZ658-021115- West Slopes of the North Cascades Generally above 1500 Feet- 239 PM PDT Mon Sep 1 2025 .Tonight... * Sky/weather...........Partly cloudy. Haze through the night. Areas of smoke after midnight. * Min temperature.......55-65. * Max humidity..........72-87 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 4 mph after midnight. * Mixing height.........500-900 ft AGL. * Transport winds.......Southwest around 5 mph shifting to the east after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...3 percent. * Freezing level........14500 Feet. .TUESDAY... * Sky/weather...........Mostly sunny. Haze. * Max temperature.......82-92...except 78-88 ridges. * Min humidity..........41-56 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 2 to 3 mph. * Ridges/upr slopes...East winds around 3 mph shifting to the southwest in the afternoon. * Mixing height.........600 ft AGL increasing to 3300 ft AGL in the afternoon. * Transport winds.......East around 5 mph shifting to the south in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........15000 Feet. .TUESDAY NIGHT... * Sky/weather...........Mostly clear. Haze. * Min temperature.......58-68. * Max humidity..........66-81 percent...except 53-68 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley 3 to 5 mph. * Ridges/upr slopes...Southwest winds around 3 mph shifting to the east around 6 mph after midnight. * Mixing height.........500-1100 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........15500 Feet. .WEDNESDAY... * Sky/weather...........Sunny. * Max temperature.......82-92...except 77-87 ridges. * Min humidity..........40-55 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 3 to 4 mph. * Ridges/upr slopes...East winds around 5 mph shifting to the west around 4 mph in the afternoon. * Mixing height.........500 ft AGL increasing to 3600 ft AGL in the afternoon. * Transport winds.......Northeast around 5 mph shifting to the northwest in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........15000 Feet. .WEDNESDAY NIGHT...Mostly clear. Freezing level 15000 feet. Lows 59 to 69. West winds around 4 mph shifting to the east around 5 mph after midnight. .THURSDAY...Sunny. Freezing level 14500 feet. Highs 80 to 90 valleys...73 to 83 ridges. East winds around 4 mph shifting to the southwest in the afternoon. .THURSDAY NIGHT...Partly cloudy. Freezing level 14500 feet. Lows 57 to 67. South winds around 3 mph. .FRIDAY...Mostly sunny. Freezing level 14000 feet. Highs 75 to 85 valleys...69 to 79 ridges. South winds around 3 mph. .FRIDAY NIGHT...Partly cloudy. Freezing level 14000 feet. Lows 55 to 65. Southwest winds around 3 mph. .SATURDAY...Partly sunny with slight chance of rain. Freezing level 13500 feet. Highs 71 to 81 valleys...64 to 74 ridges. Southwest winds around 3 mph. .SUNDAY...Mostly cloudy. Slight chance of showers and thunderstorms. Freezing level 13000 feet. Lows 56 to 66 valleys...in the mid 50s ridges. Highs 66 to 76 valleys...59 to 69 ridges. .MONDAY...Mostly cloudy with a chance of rain. Freezing level 12500 feet. Lows 53 to 63 valleys...in the lower 50s ridges. Highs 63 to 73 valleys...55 to 65 ridges. .8 TO 14 day Outlook for Sep 09 - 15 2025 Above normal temperatures and above normal precipitation. $$ WAZ659-021115- West Slopes of the Central Cascades Generally above 1500 Feet- 239 PM PDT Mon Sep 1 2025 .Tonight... * Sky/weather...........Partly cloudy then becoming mostly cloudy. Haze through the night. Areas of smoke and patchy dense fog after midnight. * Min temperature.......52-62. * Max humidity..........77-92 percent...except 65-80 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley 1 to 2 mph. * Ridges/upr slopes...Northwest winds around 3 mph in the evening becoming light. * Mixing height.........400-900 ft AGL. * Transport winds.......Northwest around 5 mph shifting to the east after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. * Freezing level........14000 Feet. .TUESDAY... * Sky/weather...........Mostly sunny. Areas of smoke and patchy dense fog in the morning. Haze through the day. * Max temperature.......82-92...except 75-85 ridges. * Min humidity..........42-57 percent...except 34-49 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 1 to 3 mph. * Ridges/upr slopes...East winds around 3 mph shifting to the west in the afternoon. * Mixing height.........600 ft AGL increasing to 3200 ft AGL in the afternoon. * Transport winds.......East around 5 mph shifting to the south in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........15000 Feet. .TUESDAY NIGHT... * Sky/weather...........Partly cloudy. Haze. * Min temperature.......59-69. * Max humidity..........59-74 percent...except 47-62 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley 2 to 3 mph. * Ridges/upr slopes...Light winds becoming east around 5 mph after midnight. * Mixing height.........400-1100 ft AGL. * Transport winds.......North around 5 mph shifting to the east after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........15000 Feet. .WEDNESDAY... * Sky/weather...........Mostly sunny. * Max temperature.......82-92...except 76-86 ridges. * Min humidity..........39-54 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 2 to 4 mph. * Ridges/upr slopes...East winds around 4 mph shifting to the northwest in the afternoon. * Mixing height.........400 ft AGL increasing to 3100 ft AGL in the afternoon. * Transport winds.......Northeast around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........15000 Feet. .WEDNESDAY NIGHT...Partly cloudy. Freezing level 14500 feet. Lows 58 to 68. Northwest winds around 3 mph shifting to the east after midnight. .THURSDAY...Mostly sunny. Freezing level 14500 feet. Highs 78 to 88 valleys...73 to 83 ridges. Southeast winds around 3 mph shifting to the west around 4 mph in the afternoon. .THURSDAY NIGHT...Partly cloudy. Freezing level 14500 feet. Lows 57 to 67. Light winds. .FRIDAY...Mostly sunny. Freezing level 14000 feet. Highs 75 to 85 valleys...69 to 79 ridges. Light winds. .FRIDAY NIGHT...Mostly cloudy. Slight chance of rain in the evening. Freezing level 14000 feet. Lows 54 to 64. Light winds. .SATURDAY...Partly sunny with slight chance of rain. Freezing level 13500 feet. Highs 70 to 80 valleys...64 to 74 ridges. Light winds. .SUNDAY...Mostly cloudy. Slight chance of showers and thunderstorms. Freezing level 13000 feet. Lows 51 to 61. Highs 67 to 77 valleys... 59 to 69 ridges. .MONDAY...Mostly cloudy with a chance of rain. Freezing level 12500 feet. Lows 49 to 59. Highs 63 to 73 valleys...56 to 66 ridges. .8 TO 14 day Outlook for Sep 09 - 15 2025 Above normal temperatures and above normal precipitation. $$ www.weather.gov/seattle