


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Seattle/Tacoma, WA
Issued by NWS Seattle/Tacoma, WA
806 FNUS56 KSEW 032134 FWFSEW Fire Weather Planning Forecast for Western Washington National Weather Service Seattle WA 234 PM PDT Wed Sep 3 2025 ...HEAT ADVISORY IN EFFECT UNTIL 5 PM PDT THURSDAY... ...RED FLAG WARNING IN EFFECT UNTIL 9 PM PDT THURSDAY... .DISCUSSION...Dry and unstable conditions will continue across the mountains through Thursday with high pressure overhead. Onshore flow looks to bring better RH recoveries starting Friday and into the early next week. Over the weekend, monsoonal moisture may move into the region to boost the chances for isolated thunderstorms, especially near the Cascades, but confidence in the specific timing and coverage remains low. Forecast for 20 foot wind speed (valleys and ridge tops) are 10 minute averages reflecting RAWS winds. WAZ649-041215- North and Central Coastal Strip- 234 PM PDT Wed Sep 3 2025 .Tonight... * Sky/weather...........Mostly cloudy. Areas of fog through the night. * Min temperature.......Around 56. * Max humidity..........90-100 percent. * 20-foot winds......... * Valleys/lwr slopes..Northwest winds 4 to 7 mph. * Ridges/upr slopes...Northwest winds 4 to 7 mph. * Mixing height.........500-700 ft AGL. * Transport winds.......Northwest around 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. .THURSDAY... * Sky/weather...........Mostly cloudy then becoming mostly sunny. Areas of fog in the morning. * Max temperature.......62-72. * 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.........600-900 ft AGL. * Transport winds.......Northwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...2 percent. .THURSDAY NIGHT... * Sky/weather...........Partly cloudy then becoming mostly cloudy. * Min temperature.......52-62. * Max humidity..........90-100 percent. * 20-foot winds......... * Valleys/lwr slopes..Northwest winds 3 to 6 mph. * Ridges/upr slopes...Northwest winds 3 to 6 mph. * Mixing height.........500-700 ft AGL. * Transport winds.......Northwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. .FRIDAY... * Sky/weather...........Partly sunny. * Max temperature.......62-72. * Min humidity..........76-91 percent. * 20-foot winds......... * Valleys/lwr slopes..Light winds becoming west around 5 mph in the afternoon. * Ridges/upr slopes...West winds 3 to 6 mph. * Mixing height.........600-1200 ft AGL. * Transport winds.......West around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. .FRIDAY NIGHT...Mostly cloudy with slight chance of rain. Lows in the upper 50s. West winds 3 to 5 mph. .SATURDAY...Mostly cloudy. Slight chance of rain in the morning, then chance of rain in the afternoon. Highs 62 to 72. Light winds becoming southwest around 4 mph in the afternoon. .SATURDAY NIGHT...Mostly cloudy with a chance of rain. Lows in the upper 50s. Light winds. .SUNDAY...Mostly cloudy with a chance of rain. Highs in the upper 60s. South winds around 3 mph. .SUNDAY NIGHT...Mostly cloudy with a chance of rain. Lows in the mid 50s. Light winds. .MONDAY...Mostly cloudy with a chance of rain. Highs 62 to 72. Light winds. .TUESDAY...Mostly cloudy with rain likely. Lows in the upper 50s. Highs in the mid 60s. .WEDNESDAY...Mostly cloudy with a chance of rain. Lows in the mid 50s. Highs 62 to 72. .8 TO 14 day Outlook for Sep 11 - 17 2025 Above normal temperatures and above normal precipitation. $$ WAZ650-041215- North Coastal Lowlands- 234 PM PDT Wed Sep 3 2025 .Tonight... * Sky/weather...........Partly cloudy. Patchy fog. * Min temperature.......57-67. * Max humidity..........69-84 percent...except 75-90 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Northwest winds around 4 mph in the evening becoming light. * Ridges/upr slopes...Northwest winds 3 to 5 mph. * Mixing height.........500-800 ft AGL. * Transport winds.......Northwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. .THURSDAY... * Sky/weather...........Mostly sunny. Widespread dense fog in the morning. Haze in the afternoon. * Max temperature.......70-80. * Min humidity..........51-66 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.........600-1400 ft AGL. * Transport winds.......Northwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...2 percent. .THURSDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......57-67. * Max humidity..........68-83 percent...except 74-89 percent ridges. * 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.........500-900 ft AGL. * Transport winds.......Northwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. .FRIDAY... * Sky/weather...........Mostly sunny. * Max temperature.......70-80. * Min humidity..........55-70 percent...except 50-65 percent ridges. * 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.........600-1600 ft AGL. * Transport winds.......West around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. .FRIDAY NIGHT...Mostly cloudy. Slight chance of rain after midnight. Lows 55 to 65. West winds around 3 mph in the evening becoming light. .SATURDAY...Mostly cloudy with slight chance of rain. Highs 66 to 76. Light winds becoming southwest around 4 mph in the afternoon. .SATURDAY NIGHT...Mostly cloudy with a chance of rain. Lows in the upper 50s. Light winds. .SUNDAY...Mostly cloudy with a chance of rain. Highs in the upper 60s. Light winds. .SUNDAY NIGHT...Mostly cloudy. Slight chance of rain in the evening, then chance of rain after midnight. Lows in the mid 50s. Light winds. .MONDAY...Mostly cloudy. Slight chance of rain in the morning, then chance of rain in the afternoon. Highs 64 to 74. Light winds. .TUESDAY...Mostly cloudy with a chance of rain. Lows in the mid 50s. Highs 63 to 73. .WEDNESDAY...Mostly cloudy. Chance of rain. Lows in the mid 50s. Highs 64 to 74 valleys...59 to 69 ridges. .8 TO 14 day Outlook for Sep 11 - 17 2025 Above normal temperatures and above normal precipitation. $$ WAZ651-041215- Central Coastal Lowlands- 234 PM PDT Wed Sep 3 2025 .Tonight... * Sky/weather...........Partly cloudy then becoming mostly cloudy. Patchy fog. * Min temperature.......56-66. * Max humidity..........80-95 percent. * 20-foot winds......... * Valleys/lwr slopes..West winds around 4 mph in the evening becoming light. * Ridges/upr slopes...West winds around 3 mph in the evening becoming light. * Mixing height.........600-800 ft AGL. * Transport winds.......West 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...2 percent. .THURSDAY... * Sky/weather...........Mostly sunny. Patchy fog in the morning. Haze in the afternoon. * Max temperature.......74-84. * Min humidity..........54-69 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.........600-1600 ft AGL. * Transport winds.......West around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...4 percent. .THURSDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......56-66. * Max humidity..........78-93 percent. * 20-foot winds......... * Valleys/lwr slopes..West winds around 4 mph in the evening becoming light. * Ridges/upr slopes...West winds 3 to 5 mph. * Mixing height.........400-1000 ft AGL. * Transport winds.......West around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...2 percent. .FRIDAY... * Sky/weather...........Mostly sunny. * Max temperature.......73-83. * Min humidity..........57-72 percent. * 20-foot winds......... * Valleys/lwr slopes..Light winds becoming west around 4 mph in the afternoon. * Ridges/upr slopes...Light winds becoming southwest around 3 mph in the afternoon. * Mixing height.........600-1600 ft AGL. * Transport winds.......West around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...2 percent. .FRIDAY NIGHT...Mostly cloudy. Slight chance of rain after midnight. Lows in the upper 50s. West winds 3 to 5 mph. .SATURDAY...Mostly cloudy. Slight chance of rain in the morning, then chance of rain in the afternoon. Highs 66 to 76. Light winds becoming southwest around 4 mph in the afternoon. .SATURDAY NIGHT...Mostly cloudy with a chance of rain. Lows in the upper 50s. Light winds. .SUNDAY...Mostly cloudy with slight chance of rain. Highs 66 to 76 valleys...61 to 71 ridges. Light winds. .SUNDAY NIGHT...Mostly cloudy with slight chance of rain. Lows in the mid 50s. Light winds. .MONDAY...Mostly cloudy. Slight chance of rain in the morning, then chance of rain in the afternoon. Highs 65 to 75 valleys...59 to 69 ridges. Light winds. .TUESDAY...Mostly cloudy with a chance of rain. Lows in the mid 50s. Highs 63 to 73 valleys...58 to 68 ridges. .WEDNESDAY...Mostly cloudy with a chance of rain. Lows in the mid 50s. Highs 64 to 74 valleys...59 to 69 ridges. .8 TO 14 day Outlook for Sep 11 - 17 2025 Above normal temperatures and above normal precipitation. $$ WAZ652-041215- West Portion of the Olympic Mountains- 234 PM PDT Wed Sep 3 2025 .Tonight... * Sky/weather...........Partly cloudy. Haze after midnight. * Min temperature.......58-68. * Max humidity..........59-74 percent. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley around 2 mph. * Ridges/upr slopes...Light winds. * Mixing height.........300-500 ft AGL. * Transport winds.......North around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...3 percent. * Freezing level........14500 Feet. .THURSDAY... * Sky/weather...........Mostly sunny. Haze. * Max temperature.......74-84...except 71-81 ridges. * Min humidity..........41-56 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.......Northeast around 5 mph shifting to the northwest in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...2 percent. * Freezing level........14000 Feet. .THURSDAY NIGHT... * Sky/weather...........Mostly clear. Haze. * Min temperature.......58-68. * Max humidity..........59-74 percent. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley 2 to 3 mph. * Ridges/upr slopes...West winds around 3 mph shifting to the southeast after midnight. * Mixing height.........300-800 ft AGL. * Transport winds.......Northwest around 5 mph shifting to the east after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...2 percent. * Freezing level........14000 Feet. .FRIDAY... * Sky/weather...........Mostly sunny. * Max temperature.......72-82...except 69-79 ridges. * Min humidity..........42-57 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 2 to 4 mph. * Ridges/upr slopes...Light winds becoming southwest around 4 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...1 percent. * Freezing level........14000 Feet. .FRIDAY NIGHT...Partly cloudy. Slight chance of rain after midnight. Freezing level 14000 feet. Lows in the lower 60s. West winds around 3 mph in the evening becoming light. .SATURDAY...Partly sunny with slight chance of rain. Freezing level 13000 feet. Highs 64 to 74. Light winds becoming southwest around 4 mph in the afternoon. .SATURDAY NIGHT...Mostly cloudy with a chance of rain. Freezing level 13000 feet. Lows in the upper 50s. Southwest winds around 3 mph. .SUNDAY...Partly sunny. Chance of rain in the morning, then slight chance of rain in the afternoon. Freezing level 12000 feet. Highs 61 to 71 valleys...56 to 66 ridges. Southwest winds around 3 mph. .SUNDAY NIGHT...Mostly cloudy. Slight chance of rain in the evening, then chance of rain after midnight. Freezing level 12000 feet. Lows in the mid 50s. Light winds. .MONDAY...Mostly cloudy with a chance of rain. Freezing level 11000 feet. Highs 60 to 70 valleys...55 to 65 ridges. Light winds. .TUESDAY...Mostly cloudy with a chance of rain. Freezing level 10500 feet. Lows in the mid 50s. Highs 58 to 68 valleys...53 to 63 ridges. .WEDNESDAY...Mostly cloudy. Chance of rain. Freezing level 10000 feet. Lows in the mid 50s. Highs 59 to 69 valleys...54 to 64 ridges. .8 TO 14 day Outlook for Sep 11 - 17 2025 Above normal temperatures and above normal precipitation. $$ WAZ661-041215- East Portion of the Olympic Mountains- 234 PM PDT Wed Sep 3 2025 .Tonight... * Sky/weather...........Partly cloudy. Haze in the evening. * Min temperature.......58-68. * Max humidity..........65-80 percent...except 52-67 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley around 2 mph. * Ridges/upr slopes...Light winds becoming west around 3 mph after midnight. * Mixing height.........400-600 ft AGL. * Transport winds.......North around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...3 percent. * Freezing level........14500 Feet. .THURSDAY... * Sky/weather...........Mostly sunny. * Max temperature.......76-86...except 71-81 ridges. * Min humidity..........39-54 percent...except 32-47 percent ridges. * 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.......Northeast around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. * Freezing level........14000 Feet. .THURSDAY NIGHT... * Sky/weather...........Mostly clear. Haze after midnight. * Min temperature.......57-67. * Max humidity..........65-80 percent...except 52-67 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley 2 to 3 mph. * Ridges/upr slopes...West winds 3 to 5 mph. * Mixing height.........400-900 ft AGL. * Transport winds.......Southwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...2 percent. * Freezing level........14000 Feet. .FRIDAY... * Sky/weather...........Mostly sunny. * Max temperature.......75-85...except 69-79 ridges. * Min humidity..........38-53 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 2 to 4 mph. * Ridges/upr slopes...Southwest winds 3 to 5 mph. * Mixing height.........800-1800 ft AGL. * Transport winds.......Southeast around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. * Freezing level........14000 Feet. .FRIDAY NIGHT...Partly cloudy. Slight chance of rain after midnight. Freezing level 14000 feet. Lows 57 to 67. West winds 3 to 5 mph. .SATURDAY...Partly sunny with slight chance of rain. Freezing level 13000 feet. Highs 67 to 77 valleys...62 to 72 ridges. Light winds becoming southwest around 4 mph in the afternoon. .SATURDAY NIGHT...Cooler. Mostly cloudy with a chance of rain. Freezing level 13000 feet. Lows 51 to 61. Southwest winds around 3 mph. .SUNDAY...Partly sunny with slight chance of rain. Freezing level 12000 feet. Highs 62 to 72 valleys...54 to 64 ridges. Southwest winds around 3 mph. .SUNDAY NIGHT...Mostly cloudy with slight chance of rain. Freezing level 12000 feet. Lows 50 to 60. West winds around 3 mph. .MONDAY...Mostly cloudy. Slight chance of rain in the morning, then chance of rain in the afternoon. Freezing level 11000 feet. Highs 61 to 71 valleys...54 to 64 ridges. Light winds. .TUESDAY...Mostly cloudy with a chance of rain. Freezing level 10500 feet. Lows 49 to 59. Highs 59 to 69 valleys...52 to 62 ridges. .WEDNESDAY...Mostly cloudy. Chance of rain. Freezing level 10000 feet. Lows 47 to 57. Highs 60 to 70 valleys...53 to 63 ridges. .8 TO 14 day Outlook for Sep 11 - 17 2025 Above normal temperatures and above normal precipitation. $$ WAZ653-041215- Strait of Juan De Fuca and Northwest Interior Lowlands- 234 PM PDT Wed Sep 3 2025 .Tonight... * 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 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. .THURSDAY... * Sky/weather...........Mostly sunny. Patchy dense fog in the morning. * Max temperature.......71-81. * Min humidity..........48-63 percent. * 20-foot winds.........Light winds becoming northwest around 4 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. .THURSDAY NIGHT... * Sky/weather...........Partly cloudy. Slight chance of rain. * Min temperature.......55-65. * Max humidity..........67-82 percent. * 20-foot winds.........West winds around 3 mph in the evening becoming light. * Mixing height.........500-600 ft AGL. * Transport winds.......West around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. .FRIDAY... * Sky/weather...........Mostly sunny. * Max temperature.......71-81. * Min humidity..........56-71 percent. * 20-foot winds.........Light winds becoming west around 4 mph in the afternoon. * Mixing height.........500-1000 ft AGL. * Transport winds.......South around 5 mph shifting to the west in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. .FRIDAY NIGHT...Partly cloudy. Slight chance of rain after midnight. Lows 55 to 65. Southwest winds 3 to 5 mph. .SATURDAY...Partly sunny with slight chance of rain. Highs 69 to 79. Southwest winds 3 to 6 mph. .SATURDAY NIGHT...Mostly cloudy with a chance of rain. Lows in the upper 50s. Southwest winds around 3 mph. .SUNDAY...Mostly cloudy with a chance of rain. Highs 66 to 76. South winds around 4 mph. .SUNDAY NIGHT...Mostly cloudy with a chance of rain. Lows in the upper 50s. West winds around 3 mph. .MONDAY...Mostly cloudy with a chance of rain. Highs 65 to 75. Southwest winds around 3 mph. .TUESDAY...Mostly cloudy with rain likely. Lows in the mid 50s. Highs 64 to 74. .WEDNESDAY...Mostly cloudy with a chance of rain. Lows 51 to 61. Highs 65 to 75. .8 TO 14 day Outlook for Sep 11 - 17 2025 Above normal temperatures and above normal precipitation. $$ WAZ654-041215- Central and South Puget Sound Lowlands- 234 PM PDT Wed Sep 3 2025 .Tonight... * Sky/weather...........Partly cloudy. Haze. * Min temperature.......55-65. * Max humidity..........68-83 percent. * 20-foot winds.........Northeast winds around 3 mph in the evening becoming light. * Mixing height.........400-900 ft AGL. * Transport winds.......North around 5 mph shifting to the west after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...2 percent. .THURSDAY... * Sky/weather...........Mostly sunny. * Max temperature.......74-84. * Min humidity..........44-59 percent. * 20-foot winds.........Light winds becoming northeast around 4 mph in the afternoon. * Mixing height.........800-1800 ft AGL. * Transport winds.......Northeast around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. .THURSDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......56-66. * Max humidity..........70-85 percent. * 20-foot winds.........Northwest winds around 3 mph in the evening becoming light. * Mixing height.........400-1400 ft AGL. * Transport winds.......North around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...3 percent. .FRIDAY... * Sky/weather...........Mostly sunny. * Max temperature.......75-85. * Min humidity..........44-59 percent. * 20-foot winds.........Light winds becoming southwest around 5 mph in the afternoon. * Mixing height.........900-1900 ft AGL. * Transport winds.......Northwest around 5 mph shifting to the south in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...2 percent. .FRIDAY NIGHT...Partly cloudy. Slight chance of rain after midnight. Lows 56 to 66. West winds 3 to 6 mph. .SATURDAY...Mostly cloudy with a chance of rain. Highs 70 to 80. Southwest winds 4 to 7 mph. .SATURDAY NIGHT...Mostly cloudy with a chance of rain. Lows in the upper 50s. Southwest winds around 5 mph. .SUNDAY...Mostly cloudy with a chance of rain. Highs in the lower 70s. Southwest winds around 5 mph. .SUNDAY NIGHT...Mostly cloudy with slight chance of rain. Lows in the upper 50s. Southwest winds around 4 mph. .MONDAY...Mostly cloudy with a chance of rain. Highs in the lower 70s. South winds around 3 mph. .TUESDAY...Mostly cloudy with a chance of rain. Lows in the upper 50s. Highs in the upper 60s. .WEDNESDAY...Mostly cloudy with a chance of rain. Lows in the upper 50s. Highs around 70. .8 TO 14 day Outlook for Sep 11 - 17 2025 Above normal temperatures and above normal precipitation. $$ WAZ655-041215- Black Hills and Southwest Interior Lowlands- 234 PM PDT Wed Sep 3 2025 ...HEAT ADVISORY IN EFFECT UNTIL 5 PM PDT THURSDAY... .Tonight... * Sky/weather...........Partly cloudy then becoming mostly cloudy. * Min temperature.......57-67. * Max humidity..........73-88 percent. * 20-foot winds.........Northwest winds around 3 mph in the evening becoming light. * Mixing height.........600-1100 ft AGL. * Transport winds.......Northwest 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...2 percent. .THURSDAY... * Sky/weather...........Mostly sunny. Patchy fog in the morning. Haze in the afternoon. * Max temperature.......80-90. * Min humidity..........34-49 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...3 percent. .THURSDAY NIGHT... * Sky/weather...........Partly cloudy. Haze in the evening. * Min temperature.......57-67. * Max humidity..........74-89 percent. * 20-foot winds.........Northwest winds around 3 mph in the evening becoming light. * Mixing height.........600-1600 ft AGL. * Transport winds.......Northwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...3 percent. .FRIDAY... * Sky/weather...........Mostly sunny. * Max temperature.......79-89. * Min humidity..........37-52 percent. * 20-foot winds.........Light winds becoming west around 3 mph in the afternoon. * Mixing height.........800-1800 ft AGL. * Transport winds.......West around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...2 percent. .FRIDAY NIGHT...Mostly cloudy with slight chance of rain. Lows 56 to 66. West winds 3 to 5 mph. .SATURDAY...Mostly cloudy. Slight chance of rain in the morning, then chance of showers and slight chance of thunderstorms in the afternoon. Highs 70 to 80. Light winds becoming west around 3 mph in the afternoon. .SATURDAY NIGHT...Mostly cloudy with a chance of rain. Lows in the upper 50s. West winds around 3 mph. .SUNDAY...Mostly cloudy with slight chance of rain. Highs in the lower 70s. Light winds. .SUNDAY NIGHT...Mostly cloudy with slight chance of rain. Lows in the mid 50s. Light winds. .MONDAY...Mostly cloudy. Slight chance of rain in the morning, then chance of rain in the afternoon. Highs in the lower 70s. Light winds. .TUESDAY...Mostly cloudy with a chance of rain. Lows in the mid 50s. Highs 65 to 75. .WEDNESDAY...Mostly cloudy with a chance of rain. Lows in the mid 50s. Highs in the lower 70s. .8 TO 14 day Outlook for Sep 11 - 17 2025 Above normal temperatures and above normal precipitation. $$ WAZ656-041215- Northeast Puget Sound Lowlands Generally Below 1500 Feet- 234 PM PDT Wed Sep 3 2025 ...HEAT ADVISORY IN EFFECT UNTIL 5 PM PDT THURSDAY... .Tonight... * Sky/weather...........Partly cloudy. Haze. * Min temperature.......58-68. * Max humidity..........67-82 percent. * 20-foot winds.........West winds around 3 mph in the evening becoming light. * Mixing height.........900-1200 ft AGL. * Transport winds.......Northwest around 5 mph shifting to the southeast after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. .THURSDAY... * Sky/weather...........Mostly sunny. * Max temperature.......80-90. * Min humidity..........38-53 percent. * 20-foot winds.........Light winds becoming west around 4 mph in the afternoon. * Mixing height.........1000-2000 ft AGL. * Transport winds.......Light winds becoming northwest around 5 mph in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. .THURSDAY NIGHT... * Sky/weather...........Mostly clear. Haze. * Min temperature.......59-69. * Max humidity..........72-87 percent. * 20-foot winds.........Light winds becoming east around 3 mph after midnight. * Mixing height.........900-1300 ft AGL. * Transport winds.......West around 5 mph shifting to the east after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...4 percent. .FRIDAY... * Sky/weather...........Mostly sunny. * Max temperature.......79-89. * Min humidity..........39-54 percent. * 20-foot winds.........Light winds becoming west around 4 mph in the afternoon. * Mixing height.........1400-2400 ft AGL. * Transport winds.......East around 5 mph shifting to the southwest in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...3 percent. .FRIDAY NIGHT...Partly cloudy. Slight chance of rain after midnight. Lows 58 to 68. West winds around 3 mph shifting to the east after midnight. .SATURDAY...Partly sunny with a chance of rain. Highs 73 to 83. Light winds becoming southwest around 4 mph in the afternoon. .SATURDAY NIGHT...Mostly cloudy with a chance of rain. Lows 55 to 65. Southwest winds around 3 mph. .SUNDAY...Mostly cloudy with a chance of rain. Highs 68 to 78. Southwest winds around 3 mph. .SUNDAY NIGHT...Mostly cloudy with a chance of rain. Lows in the upper 50s. Light winds. .MONDAY...Mostly cloudy with a chance of rain. Highs 67 to 77. Light winds. .TUESDAY...Mostly cloudy with rain likely. Lows in the upper 50s. Highs 64 to 74. .WEDNESDAY...Mostly cloudy with rain likely. Lows in the mid 50s. Highs 65 to 75. .8 TO 14 day Outlook for Sep 11 - 17 2025 Above normal temperatures and above normal precipitation. $$ WAZ657-041215- Southeast Puget Sound Lowlands Generally Below 1500 Feet- 234 PM PDT Wed Sep 3 2025 ...HEAT ADVISORY IN EFFECT UNTIL 5 PM PDT THURSDAY... .Tonight... * Sky/weather...........Partly cloudy. Haze. * Min temperature.......56-66. * Max humidity..........77-92 percent. * 20-foot winds.........North winds up to 3 mph. * Mixing height.........500-1100 ft AGL. * Transport winds.......North around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...2 percent. .THURSDAY... * Sky/weather...........Mostly sunny. Haze in the morning. * Max temperature.......79-89. * Min humidity..........44-59 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...1 percent. .THURSDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......57-67. * Max humidity..........76-91 percent. * 20-foot winds.........Light winds. * Mixing height.........500-1500 ft AGL. * Transport winds.......North around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...6 percent. .FRIDAY... * Sky/weather...........Mostly sunny. * Max temperature.......80-90. * Min humidity..........42-57 percent. * 20-foot winds.........Light winds becoming west around 3 mph in the afternoon. * Mixing height.........600 ft AGL increasing to 2600 ft AGL in the afternoon. * Transport winds.......Southeast around 5 mph shifting to the west in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...3 percent. .FRIDAY NIGHT...Partly cloudy with slight chance of rain. Lows in the lower 60s. Light winds. .SATURDAY...Mostly cloudy. Chance of rain in the morning, then chance of showers and slight chance of thunderstorms in the afternoon. Highs 72 to 82. Light winds becoming west around 3 mph in the afternoon. .SATURDAY NIGHT...Mostly cloudy with a chance of rain. Lows around 60. Light winds. .SUNDAY...Mostly cloudy with a chance of rain. Highs in the mid 70s. Light winds. .SUNDAY NIGHT...Mostly cloudy with slight chance of rain. Lows in the upper 50s. Light winds. .MONDAY...Mostly cloudy. Slight chance of rain in the morning, then chance of rain in the afternoon. Highs in the lower 70s. Light winds. .TUESDAY...Cloudy with a chance of rain. Lows 53 to 63. Highs around 70. .WEDNESDAY...Mostly cloudy with a chance of rain. Lows 52 to 62. Highs around 70. .8 TO 14 day Outlook for Sep 11 - 17 2025 Above normal temperatures and above normal precipitation. $$ WAZ658-041215- West Slopes of the North Cascades Generally above 1500 Feet- 234 PM PDT Wed Sep 3 2025 ...RED FLAG WARNING IN EFFECT UNTIL 9 PM PDT THURSDAY... .Tonight... * Sky/weather...........Mostly clear. * Min temperature.......57-67. * Max humidity..........61-76 percent...except 55-70 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley 2 to 3 mph. * Ridges/upr slopes...Northwest winds around 4 mph shifting to the northeast around 3 mph after midnight. * Mixing height.........500-900 ft AGL. * Transport winds.......North around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. * Freezing level........15000 Feet. .THURSDAY... * Sky/weather...........Mostly sunny. Haze. * Max temperature.......81-91...except 77-87 ridges. * Min humidity..........33-48 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 2 to 4 mph. * Ridges/upr slopes...Southeast winds around 3 mph shifting to the west around 4 mph in the afternoon. * Mixing height.........500 ft AGL increasing to 2500 ft AGL in the afternoon. * Transport winds.......North around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...1 percent. * Freezing level........14500 Feet. .THURSDAY NIGHT... * Sky/weather...........Mostly clear. Haze in the evening. * Min temperature.......58-68...except 55-65 ridges. * Max humidity..........64-79 percent...except 58-73 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley around 3 mph. * Ridges/upr slopes...West winds around 4 mph shifting to the southeast around 5 mph after midnight. * Mixing height.........500-1200 ft AGL. * Transport winds.......Northwest around 5 mph shifting to the east after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...5 percent. * Freezing level........14500 Feet. .FRIDAY... * Sky/weather...........Sunny. * Max temperature.......80-90...except 73-83 ridges. * Min humidity..........35-50 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 3 to 4 mph. * Ridges/upr slopes...Southeast winds around 5 mph shifting to the southwest around 4 mph in the afternoon. * Mixing height.........500 ft AGL increasing to 3500 ft AGL in the afternoon. * Transport winds.......East around 10 mph shifting to the south in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...4 percent. * Freezing level........14000 Feet. .FRIDAY NIGHT...Partly cloudy. Slight chance of rain after midnight. Freezing level 14000 feet. Lows 57 to 67. West winds around 4 mph shifting to the south after midnight. .SATURDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain in the afternoon. Freezing level 14000 feet. Highs 72 to 82 valleys...65 to 75 ridges. Light winds becoming west around 4 mph in the afternoon. .SATURDAY NIGHT...Cooler. Mostly cloudy. Chance of showers and slight chance of thunderstorms in the evening, then chance of rain after midnight. Freezing level 13500 feet. Lows 55 to 65 valleys... in the mid 50s ridges. West winds around 3 mph. .SUNDAY...Mostly cloudy with a chance of rain. Freezing level 12500 feet. Highs 63 to 73 valleys...56 to 66 ridges. West winds around 3 mph. .SUNDAY NIGHT...Mostly cloudy with a chance of rain. Freezing level 12000 feet. Lows 53 to 63 valleys...in the lower 50s ridges. West winds around 4 mph. .MONDAY...Mostly cloudy with a chance of rain. Freezing level 11500 feet. Highs 61 to 71 valleys...54 to 64 ridges. West winds around 3 mph. .TUESDAY...Mostly cloudy with rain likely. Freezing level 10500 feet. Lows in the mid 50s valleys...in the lower 50s ridges. Highs 59 to 69 valleys...51 to 61 ridges. .WEDNESDAY...Rain likely. Freezing level 10500 feet. Lows in the mid 50s valleys...around 50 ridges. Highs 60 to 70 valleys...52 to 62 ridges. .8 TO 14 day Outlook for Sep 11 - 17 2025 Above normal temperatures and above normal precipitation. $$ WAZ659-041215- West Slopes of the Central Cascades Generally above 1500 Feet- 234 PM PDT Wed Sep 3 2025 ...RED FLAG WARNING IN EFFECT UNTIL 9 PM PDT THURSDAY... .Tonight... * Sky/weather...........Partly cloudy. Haze through the night. Patchy smoke after midnight. * Min temperature.......56-66. * Max humidity..........69-84 percent...except 57-72 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.........400-800 ft AGL. * Transport winds.......Northwest around 5 mph shifting to the northeast after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...3 percent. * Freezing level........15000 Feet. .THURSDAY... * Sky/weather...........Mostly sunny. Patchy dense fog in the morning. Haze through the day. * Max temperature.......80-90...except 73-83 ridges. * Min humidity..........35-50 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.........800-1800 ft AGL. * Transport winds.......East around 5 mph shifting to the west in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...3 percent. * Freezing level........14500 Feet. .THURSDAY NIGHT... * Sky/weather...........Partly cloudy. Slight chance of rain in the evening. Haze through the night. * Min temperature.......56-66. * Max humidity..........68-83 percent...except 59-74 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley around 2 mph. * Ridges/upr slopes...Northwest winds around 3 mph shifting to the southeast around 4 mph after midnight. * Mixing height.........400-1100 ft AGL. * Transport winds.......Northwest around 5 mph shifting to the east after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...11 percent. * Freezing level........14000 Feet. .FRIDAY... * Sky/weather...........Mostly sunny. * Max temperature.......79-89...except 71-81 ridges. * Min humidity..........35-50 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 2 to 3 mph. * Ridges/upr slopes...Southeast winds around 4 mph shifting to the west in the afternoon. * Mixing height.........400 ft AGL increasing to 3000 ft AGL in the afternoon. * Transport winds.......Southeast around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...6 percent. * Freezing level........14000 Feet. .FRIDAY NIGHT...Mostly cloudy. Slight chance of showers and thunderstorms in the evening, then chance of rain after midnight. Freezing level 14000 feet. Lows 56 to 66. Northwest winds around 3 mph shifting to the south after midnight. .SATURDAY...Mostly cloudy. Chance of rain in the morning, then chance of showers and slight chance of thunderstorms in the afternoon. Freezing level 13500 feet. Highs 68 to 78 valleys...63 to 73 ridges. Light winds becoming west around 4 mph in the afternoon. .SATURDAY NIGHT...Cooler. Mostly cloudy. Showers likely and slight chance of thunderstorms in the evening, then chance of rain after midnight. Freezing level 13000 feet. Lows 51 to 61. West winds around 3 mph. .SUNDAY...Mostly cloudy with a chance of rain. Freezing level 12500 feet. Highs 63 to 73 valleys...56 to 66 ridges. West winds around 3 mph. .SUNDAY NIGHT...Mostly cloudy. Chance of rain in the evening, then slight chance of rain after midnight. Freezing level 12000 feet. Lows 49 to 59. West winds around 3 mph. .MONDAY...Mostly cloudy. Slight chance of rain in the morning, then chance of rain in the afternoon. Freezing level 11500 feet. Highs 62 to 72 valleys...54 to 64 ridges. Light winds. .TUESDAY...Mostly cloudy with rain likely. Freezing level 10500 feet. Lows 48 to 58. Highs 58 to 68 valleys...50 to 60 ridges. .WEDNESDAY...Mostly cloudy with rain likely. Freezing level 10500 feet. Lows 49 to 59 valleys...in the upper 40s ridges. Highs 59 to 69 valleys...51 to 61 ridges. .8 TO 14 day Outlook for Sep 11 - 17 2025 Above normal temperatures and above normal precipitation. $$ www.weather.gov/seattle